Katsuyuki Utaka

Research output

Research output per year 1978 1982 1987 2005 2006 2007 2008 2009 2013 2014 2017 2019 2020 2022

• 1857 Citations
• 25 h-Index
• 81 Conference contribution
• 78 Article
• 10 Conference article
• 5 Paper
• 1 More
  • 1 Editorial

Research output per year

Research output per year

Search results

• 2022

  Proposal and analysis of ultra-high amplitude-sensitive refractive index sensor by thick silicon multi-slot sub-wavelength Bragg grating waveguide

  Heinsalu, S., Isogai, Y., Kawano, A., Matsushima, Y., Ishikawa, H. & Utaka, K., 2022 Feb 15, In: Optics Communications. 505, 127533.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Bragg gratings 100%
  • Refractive index 85%
  • slots 67%
  • Waveguides 67%
  • Refractive Index 63%
• 2021

  1550 nm-Band InAs/InGaAlAs Quantum Dot Distributed Feedback Lasers Grown on InP(311)B Substrate with Side-Wall Gratings Simultaneously Fabricated with a Ridge Waveguide

  Kaneko, R., Morita, R., Katsuhara, R., Yabuki, R., Matsumoto, A., Akahane, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2021, (Accepted/In press) In: Physica Status Solidi (A) Applications and Materials Science.

  Research output: Contribution to journal › Article › peer-review

  • Threshold current density 100%
  • Spontaneous emission 84%
  • Antireflection coatings 84%
  • Distributed feedback lasers 83%
  • Ridge waveguides 83%

• Sensitivity improvement for silicon MS-SW BG sensors by waveguide height increase or by waveguide suspension with supporting shape modification

  Heinsalu, S., Kawano, A., Isogai, Y., Matsushima, Y., Ishikawa, H. & Utaka, K., 2021 Jun, 2021 Optical Fiber Communications Conference and Exhibition, OFC 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 9489640. (2021 Optical Fiber Communications Conference and Exhibition, OFC 2021 - Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Refractive index 100%
  • Waveguides 78%
  • Refractive Index 73%
  • Silicon 60%
  • Suspension 59%
• 2020

  CW operation and performances of 1550nm-band InAs quantum-dot monolithically-integrated lasers with quantum-dot intermixed regions

  Kaneko, R., Isawa, S., Morita, R., Okada, H., Matsumoto, A., Akahane, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2020 Oct 4, 25th Opto-Electronics and Communications Conference, OECC 2020. Institute of Electrical and Electronics Engineers Inc., 9273725. (25th Opto-Electronics and Communications Conference, OECC 2020).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Quantum dot lasers 100%
  • Modulators 48%
  • Quantum Dot 41%
  • quantum dots 36%
  • performance 20%

• Design and record-high experimental demonstration of compact and high-sensitive SW-MS BG refractive index sensor on SOI platform

  Heinsalu, S., Isogai, Y., Matsushima, Y., Ishikawa, H. & Utaka, K., 2020 Oct 4, 25th Opto-Electronics and Communications Conference, OECC 2020. Institute of Electrical and Electronics Engineers Inc., 9273622. (25th Opto-Electronics and Communications Conference, OECC 2020).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Bragg gratings 100%
  • Refractive index 85%
  • SOI (semiconductors) 72%
  • slots 67%
  • Waveguides 67%

• Evaluation of lasing temperature characteristics of 1550nm QD-based-LDs by IID-QDI technique with ar and b ions and high temperature stability

  Matsumoto, A., Isawa, S., Kaneko, R., Akahane, K., Umezawa, T., Matsushima, Y. & Utaka, K., 2020, CLEO: Applications and Technology, CLEO_AT 2020. OSA - The Optical Society, JTh2D.6. (Optics InfoBase Conference Papers; vol. Part F181-CLEO-AT 2020).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Ions 100%
  • Quantum Dot 96%
  • Wavelength 77%
  • Ion implantation 48%
  • Temperature 43%

• Evaluation of Lasing Temperature Characteristics of 1550nm QD-Based-LDs by IID-QDI Technique with Ar and B Ions and High Temperature Stability

  Matsumoto, A., Isawa, S., Kaneko, R., Akahane, K., Umezawa, T., Matsushima, Y. & Utaka, K., 2020 May, 2020 Conference on Lasers and Electro-Optics, CLEO 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 9193433. (Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS; vol. 2020-May).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Ions 100%
  • Quantum Dot 96%
  • Wavelength 77%
  • Ion implantation 48%
  • Temperature 43%

• Novel SWGMS structure for high-sensitive refractive index sensing employing first and second Bragg-grating modes

  Heinsalu, S., Matsushima, Y., Ishikawa, H. & Utaka, K., 2020 Aug, 2020 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 9256858. (2020 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2020 - Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Diffraction gratings 100%
  • Bragg gratings 97%
  • Refractive index 83%
  • Waveguides 65%
  • Refractive Index 61%

• Record-high sensitivity compact multi-slot sub-wavelength Bragg grating refractive index sensor on SOI platform

  HEINSALU, S., ISOGAI, Y., MATSUSHIMA, Y., ISHIKAWA, H. & UTAKA, K., 2020 Sep, In: Optics Express. 28, 19, 402672.

  Research output: Contribution to journal › Article › peer-review

  • SOI (semiconductors) 100%
  • slots 93%
  • Bragg gratings 85%
  • platforms 76%
  • refractivity 63%
  3 Citations (Scopus)

• Regional Bandgap Tailoring of 1550 nm-Band InAs Quantum Dot Intermixing by Controlling Ion Implantation Depth

  Isawa, S., Akashi, Y., Morita, R., Kaneko, R., Okada, H., Matsumoto, A., Akahane, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2020 Feb 1, In: Physica Status Solidi (A) Applications and Materials Science. 217, 3, 1900521.

  Research output: Contribution to journal › Article › peer-review

  • Ion implantation 100%
  • Ion Implantation 90%
  • Energy gap 83%
  • Blue shift 70%
  • ion implantation 67%
  1 Citation (Scopus)

• The 1200 nm-Band InAs/GaAs Quantum Dot Intermixing by Dry Etching and Ion Implantation

  Hiraishi, Y., Shirai, T., Kwoen, J., Ito, T., Matsushima, Y., Ishikawa, H., Arakawa, Y. & Utaka, K., 2020 May 1, In: Physica Status Solidi (A) Applications and Materials Science. 217, 10, 1900851.

  Research output: Contribution to journal › Article › peer-review

  • Photoluminescence 100%
  • Inductively coupled plasma 91%
  • Plasma etching 91%
  • Dry etching 89%
  • Reactive ion etching 83%
• 2019

  Compact and High Sensitive Swgms Bragg Grating on Soi Platform for Refractive Index Sensing

  Heinsalu, S., Matsushima, Y., Ishikawa, H. & Utaka, K., 2019 Nov, MOC 2019 - 24th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., p. 148-149 2 p. 8982828. (MOC 2019 - 24th Microoptics Conference).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Bragg gratings 100%
  • Refractive index 85%
  • Waveguides 67%
  • Refractive Index 63%
  • Wavelength 57%

• Demonstration of All-Optical Logic Gate Device Using MQW-SOA and 10 Gbps XNOR Operation

  Akashi, Y., Matsui, S., Isawa, S., Matsushita, A., Matsumoto, A., Matsushima, Y., Ishikawa, H. & Utaka, K., 2019 Jan 9, In: Physica Status Solidi (A) Applications and Materials Science. 216, 1, 1800529.

  Research output: Contribution to journal › Article › peer-review

  • Four Wave Mixing 100%
  • Four wave mixing 97%
  • Semiconductor quantum wells 95%
  • Semiconductor optical amplifiers 91%
  • Logic gates 73%
  3 Citations (Scopus)

• InAs/GaAs Quantum Dot Intermixing by Dry Etching and Ion Implantation

  Hiraishi, Y., Shirai, T., Kwoen, J., Matushima, Y., Ishikawa, H., Arakawa, Y. & Utaka, K., 2019 May, 2019 Compound Semiconductor Week, CSW 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8819072. (2019 Compound Semiconductor Week, CSW 2019 - Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Dry etching 100%
  • Reactive ion etching 92%
  • Ion implantation 92%
  • Ion Implantation 83%
  • Annealing 68%

• Polymer interconnection waveguide for multi-core fibers using 45° mirror and self-formation lens

  Hikima, D., Ishii, T., Suzuki, D., Matsushima, Y., Ishikawa, H. & Utaka, K., 2019 Nov, MOC 2019 - 24th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., p. 114-115 2 p. 8982886. (MOC 2019 - 24th Microoptics Conference).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Waveguides 100%
  • Mirrors 99%
  • Lenses 99%
  • Drop 84%
  • lenses 71%

• Regional band-gap tailoring of 1550nm-band InAs quantum dot Intermixing by controlling ion implantation depth

  Isawa, S., Akashi, Y., Matsumoto, A., Akahane, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2019 May, 2019 Compound Semiconductor Week, CSW 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8819190. (2019 Compound Semiconductor Week, CSW 2019 - Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Ion implantation 100%
  • Ion Implantation 90%
  • Energy gap 83%
  • Blue shift 70%
  • ion implantation 67%
  1 Citation (Scopus)

• Theoretical and experimental analysis on ar implantation-induced quantum dot intermixing for 1550 NM-band photonic integrated circuit

  Matsumoto, A., Akashi, Y., Isawa, S., Umezawa, T., Matsushima, Y. & Utaka, K., 2019, CLEO: Applications and Technology, CLEO_AT 2019. OSA - The Optical Society, (Optics InfoBase Conference Papers; vol. Part F127-CLEO_AT 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Photoluminescence 100%
  • Ion implantation 83%
  • Photonics 70%
  • Integrated circuits 56%
  • Quantum Dot 54%

• Theoretical and experimental analysis on Ar Implantation-Induced Quantum Dot Intermixing for 1550 nm-Band Photonic Integrated Circuit

  Matsumoto, A., Akashi, Y., Isawa, S., Umezawa, T., Matsushima, Y. & Utaka, K., 2019 May, 2019 Conference on Lasers and Electro-Optics, CLEO 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8749850. (2019 Conference on Lasers and Electro-Optics, CLEO 2019 - Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Photoluminescence 100%
  • Optics and Photonics 96%
  • Quantum Dots 85%
  • Ion implantation 83%
  • Photonics 70%
• 2018

  Simultaneous High-speed and Polarization-Independent Switching Operation of 2x2 Silicon Mach-Zehnder-Type Optical Switch

  Shimizu, K., Shirai, T., Matsushima, Y., Ishikawa, H. & Utaka, K., 2018 Sep, Proceedings of the 2018 Photonics in Switching and Computing, PSC 2018. Manousakis, K., Iezekiel, S., Tomkos, I., Utaka, K. & Ellinas, G. (eds.). Institute of Electrical and Electronics Engineers Inc., 8751428. (Proceedings of the 2018 Photonics in Switching and Computing, PSC 2018).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Mach number 71%
  • Polarization 67%
  • switches 60%
  • Silicon 58%

• Welcome note

  Iezekiel, S., Tomkos, I., Utaka, K., Calabretta, N., Marom, D., Takahashi, R., Taubenblatt, M. & Ellinas, G., 2018 Sep, In: Proceedings of the 2018 Photonics in Switching and Computing, PSC 2018. 8751221.

  Research output: Contribution to journal › Editorial › peer-review
• 2017

  Analysis on Si modified MMI-waveguide-type optical switch operated with carrier injection

  Shirai, T., Ishikawa, A., Matsushima, Y., Ishikawa, H. & Utaka, K., 2017 Nov 19, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., p. 316-317 2 p. (22nd Microoptics Conference, MOC 2017; vol. 2017-November).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • carrier injection 88%
  • Waveguides 75%
  • Refractive Index 71%
  • switches 60%
  1 Citation (Scopus)

• Device design of silicon 2×2 mach-zehnder-type optical switch for polarization-independent operation

  Shimizu, K., Asakawa, S., Suehiro, D., Matsushima, Y., Ishikawa, H. & Utaka, K., 2017 Jan 1, Advanced Photonics, PS 2017. OSA - The Optical Society, Vol. Part F57-PS 2017.

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Phase shift 79%
  • Waveguides 75%
  • Mach number 71%
  • Polarization 67%

• Fundamental characteristics of double-reflection waveguide-type kretschmann-structure surface plasmon resonance (SPR) sensor for high-sensitiviy and wide-measurable range

  Tansho, H., Konuma, S., Matsushima, Y., Ishikawa, H. & Utaka, K., 2017 Nov 22, 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2017-January. p. 1-2 2 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Surface plasmon resonance 100%
  • Waveguides 64%
  • surface plasmon resonance 62%
  • Surface Plasmon Resonance 60%
  • Reflection 50%

• Fundamental characteristics of double-reflection waveguide-type Kretschmann-structure surface plasmon resonance (SPR) sensor for high-sensitiviy and wide-measurable range

  Tansho, H., Konuma, S., Matsushima, Y., Ishikawa, H. & Utaka, K., 2017, Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017. OSA - The Optical Society, s2084. (Optics InfoBase Conference Papers; vol. Part F122-CLEOPR 2017).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Surface plasmon resonance 100%
  • Waveguides 64%
  • Surface Plasmon Resonance 60%
  • Sensors 32%

• Lasing characteristics of intermixed highly-stacked quantum dot structure by ion implantation for wavelength-manipulated light sources

  Matsui, S., Akashi, Y., Isawa, S., Matsumoto, A., Akahane, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2017 Nov 19, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., p. 92-93 2 p. (22nd Microoptics Conference, MOC 2017; vol. 2017-November).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Ion implantation 100%
  • Ion Implantation 90%
  • Light sources 80%
  • ion implantation 67%
  • lasing 66%

• Polarization-independent and colorless switching operation of three-dimensional 4 - 4 polymer optical switch with two-layered waveguide structure

  Kimura, Y., Kobayashi, H., Ema, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2017 Dec, In: Japanese journal of applied physics. 56, 12, 120304.

  Research output: Contribution to journal › Article › peer-review

  • Optical switches 100%
  • Waveguides 75%
  • Polarization 67%
  • switches 60%
  • Mach-Zehnder interferometers 57%
  1 Citation (Scopus)

• Quantum-dot-based advanced photonic devices and its applications

  Matsumoto, A., Akahane, K., Umezawa, T., Kita, T., Utaka, K. & Yamamoto, N., 2017 Aug 9, Asia Communications and Photonics Conference, ACP 2017. OSA - The Optical Society, Vol. 2017-August. M1D.6

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Photonic devices 100%

• Thermally stable Ar-implantation-induced intermixed quantum dot laser diode in high-temperature region

  Matsumoto, A., Akahane, K., Matsui, S., Akashi, Y., Umezawa, T., Yamamoto, N., Matsushima, Y., Ishikawa, H. & Utaka, K., 2017 Jan 1, The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017. OSA - The Optical Society, Vol. Part F82-CLEO_Europe 2017.

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

• Three-dimensional 4×4 polymer optical switch using vertical multimode interference couplers for flexible expansion of connectable vertical distant

  Kimura, Y., Ema, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2017 Nov 17, 2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2017-November. p. 1-2 2 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Polymers 54%
• 2016

  Analysis of polymer double-reflection waveguide-type Kretschmann-structure surface plasmon resonance sensor for high-sensitive and wide-measurable range

  Tansho, H., Kuroda, Y., Ishikawa, H., Matsushima, Y. & Utaka, K., 2016 Feb 23, MOC 2015 - Technical Digest of 20th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., 7416525

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Surface plasmon resonance 100%
  • Waveguides 64%
  • surface plasmon resonance 62%
  • Surface Plasmon Resonance 60%
  • Polymers 46%

• Ar implantation-induced quantum dot intermixing technique for 1550 nm-band highly stacked QD photonic integrated circuit

  Matsumoto, A., Takei, Y., Akahane, K., Matsui, S., Umezawa, T., Yamamoto, N., Matsushima, Y. & Utaka, K., 2016 Dec 16, 2016 Conference on Lasers and Electro-Optics, CLEO 2016. Institute of Electrical and Electronics Engineers Inc., 7788806. (2016 Conference on Lasers and Electro-Optics, CLEO 2016).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Semiconductor lasers 100%
  • Photonics 92%
  • integrated circuits 76%
  • Integrated circuits 74%
  • Quantum Dot 71%
  1 Citation (Scopus)

• Colorless and polarization-independent polymer two-layered 4×4 optical switch for three-dimensional optical interconnection

  Kimura, Y., Ema, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2016 Feb 23, MOC 2015 - Technical Digest of 20th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., 7416519

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Optical interconnects 97%
  • Polarization 67%
  • switches 60%
  • Polymers 54%
  1 Citation (Scopus)

• Photonic integrated device of highly-stacked quantum dot using quantum dot intermixing by ion implantation

  Matsui, S., Takei, Y., Matsumoto, A., Akahane, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2016 Aug 1, 2016 Compound Semiconductor Week, CSW 2016 - Includes 28th International Conference on Indium Phosphide and Related Materials, IPRM and 43rd International Symposium on Compound Semiconductors, ISCS 2016. Institute of Electrical and Electronics Engineers Inc., 7528583. (2016 Compound Semiconductor Week, CSW 2016 - Includes 28th International Conference on Indium Phosphide and Related Materials, IPRM and 43rd International Symposium on Compound Semiconductors, ISCS 2016).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Ion implantation 100%
  • Ion Implantation 90%
  • Photonics 84%
  • Quantum dot lasers 78%
  • Blue shift 70%
  3 Citations (Scopus)
• 2015

  Gain characteristics and femto-second optical pulse response of 1550 nm-band multi-stacked QD-SOA grown on InP(311)B substrate

  Matsumoto, A., Takei, Y., Matsushita, A., Akahane, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2015 Jun 1, In: Optics Communications. 344, p. 51-54 4 p.

  Research output: Contribution to journal › Article › peer-review

  • Laser pulses 100%
  • Service oriented architecture (SOA) 82%
  • Substrates 54%
  • Logic gates 46%
  • Length 45%
  13 Citations (Scopus)

• Performance simulation of novel silicon cross-waveguide reflection-type optical switch

  Shimada, Y., Fujiwara, Y., Matsumoto, A., Ishikawa, A., Matsushima, Y., Ishikawa, H. & Utaka, K., 2015 Nov 13, 2015 International Conference on Photonics in Switching, PS 2015. Institute of Electrical and Electronics Engineers Inc., p. 58-60 3 p. 7328952. (2015 International Conference on Photonics in Switching, PS 2015).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Crosstalk 83%
  • Waveguides 75%
  • Silicon 58%
• 2014

  Design and performance of low-power, high-speed, polarization-independent and wideband polymer buried-channel waveguide thermo-optic switches

  Xie, N., Hashimoto, T. & Utaka, K., 2014 Sep 1, In: Journal of Lightwave Technology. 32, 17, p. 3067-3073 7 p., 6848781.

  Research output: Contribution to journal › Article › peer-review

  • switches 100%
  • Mach-Zehnder interferometers 98%
  • high speed 91%
  • optics 87%
  • broadband 85%
  19 Citations (Scopus)

• Experimental and calculated gain characteristics of 1550nm-band QD-SOA grown on InP(311)B substrate for ultra-fast all-optical logic gate devices

  Matsumoto, A., Takei, Y., Matsushita, A., Akahane, K., Matsushima, Y. & Utaka, K., 2014, 2014 OptoElectronics and Communication Conference, OECC 2014 and Australian Conference on Optical Fibre Technology, ACOFT 2014. IEEE Computer Society, p. 718-719 2 p. 6888244. (2014 OptoElectronics and Communication Conference, OECC 2014 and Australian Conference on Optical Fibre Technology, ACOFT 2014).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Piezoelectricity 100%
  • Logic gates 85%
  • Service oriented architecture (SOA) 76%
  • Substrates 50%

• Gain characteristics and femto-second optical pulse response of 1550nm-band QD-SOA for ultra-fast all-optical logic gate devices

  Matsumoto, A., Takei, Y., Matsushita, A., Akahane, K., Matsushima, Y. & Utaka, K., 2014, 26th International Conference on Indium Phosphide and Related Materials, IPRM 2014. Institute of Electrical and Electronics Engineers Inc., 6880561. (Conference Proceedings - International Conference on Indium Phosphide and Related Materials).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Laser pulses 100%
  • Logic gates 92%
  • Service oriented architecture (SOA) 82%
  • Quantum Dot 68%
  • Molecular beam epitaxy 59%

• High-speed and cNon-blocking 8×8 InAlGaAs/InAlAs Mach-Zehnder-Type optical switch fabric

  Kouketsu, H., Kawasaki, S., Koyama, N., Takei, A., Taniguchi, T., Matsushima, Y. & Utaka, K., 2014 Mar 3, Optical Fiber Communication Conference, OFC 2014. Optical Society of America, (Optical Fiber Communication Conference, OFC 2014).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Mach number 71%
  • Time 26%
  1 Citation (Scopus)

• High-speed and compact non-blocking 8×8 InAlGaAs/InAlAs Mach-Zehnder-type optical switch fabric

  Kouketsu, H., Kawasaki, S., Koyama, N., Takei, A., Taniguchi, T., Matsushima, Y. & Utaka, K., 2014 Jan 1, 2014 Optical Fiber Communications Conference and Exhibition, OFC 2014. Institute of Electrical and Electronics Engineers Inc., 6886566. (Conference on Optical Fiber Communication, Technical Digest Series).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Mach number 71%
  • Time 26%
  9 Citations (Scopus)

• High-speed and compact non-blocking 8×8 InAlGaAs/InAlAs Mach-Zehnder-type optical switch fabric

  Kouketsu, H., Kawasaki, S., Koyama, N., Takei, A., Taniguchi, T., Matsushima, Y. & Utaka, K., 2014 Jan 1, Optical Fiber Communication Conference, OFC 2014. Optical Society of America, (Optics InfoBase Conference Papers).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Mach number 71%
  • switches 60%
  • high speed 55%

• High-speed and compact non-blocking 8×8 InAlGaAs/InAlAs Mach-Zehnder-type optical switch fabric

  Kouketsu, H., Kawasaki, S., Koyama, N., Takei, A., Taniguchi, T., Matsushima, Y. & Utaka, K., 2014, Optical Fiber Communication Conference, OFC 2014. Optical Society of America (OSA), (Optics InfoBase Conference Papers).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Mach number 71%
  • switches 60%
  • high speed 55%
  1 Citation (Scopus)

• Improved characteristics of polymer waveguide-type Kretschmann-structure surface plasmon resonance sensor at 1500nm wavelength range

  Kuroda, Y., Hidaka, N., Matsushima, Y. & Utaka, K., 2014, 2014 OptoElectronics and Communication Conference, OECC 2014 and Australian Conference on Optical Fibre Technology, ACOFT 2014. IEEE Computer Society, p. 726-727 2 p. 6888247. (2014 OptoElectronics and Communication Conference, OECC 2014 and Australian Conference on Optical Fibre Technology, ACOFT 2014).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Surface plasmon resonance 100%
  • Refractive index 82%
  • Waveguides 64%
  • Wavelength 55%
  • Fabrication 46%

• Intermixing of InP-based quantum dots and application to micro-ring resonator wavelength-selective filter for photonic integrated devices

  Matsumoto, A., Matsushita, A., Takei, Y., Akahane, K., Matsushima, Y., Ishikawa, H. & Utaka, K., 2014 Sep 1, In: Applied Physics Express. 7, 9, 092801.

  Research output: Contribution to journal › Article › peer-review

  • Blue shift 100%
  • Photonic devices 81%
  • Point defects 80%
  • Reactive ion etching 70%
  • Photonics 59%
  14 Citations (Scopus)

• Micro-ring-resonator wavelength-selective filter using highly-stacked quantum dot intermixed waveguide

  Takei, Y., Matsumoto, A., Matsushita, A., Akahane, K., Matsushima, Y. & Utaka, K., 2014, 26th International Conference on Indium Phosphide and Related Materials, IPRM 2014. Institute of Electrical and Electronics Engineers Inc., 6880523. (Conference Proceedings - International Conference on Indium Phosphide and Related Materials).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Reactive ion etching 100%
  • Etching 79%
  • Waveguides 75%
  • Annealing 73%
  • Resonators 69%

• Nonlinear optical property of CNT embedded in Si slot waveguide

  Fukuda, K., Yamada, S., Kuwae, H., Mizuno, J., Takashima, T., Matsushima, Y. & Utaka, K., 2014, 2014 OptoElectronics and Communication Conference, OECC 2014 and Australian Conference on Optical Fibre Technology, ACOFT 2014. IEEE Computer Society, p. 1041-1042 2 p. 6888365. (2014 OptoElectronics and Communication Conference, OECC 2014 and Australian Conference on Optical Fibre Technology, ACOFT 2014).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical properties 100%
  • Carbon nanotubes 85%
  • Waveguides 82%
• 2013

  Fundamental characteristics of 1550nm-band 20-layer-stacked QD-SOA grown on InP(311)B substrate for all-optical logic gate device

  Matsumoto, A., Takei, Y., Matsushita, A., Akahane, K., Matsushima, Y. & Utaka, K., 2013, Technical Digest of the 18th Microoptics Conference, MOC 2013. 6715095. (Technical Digest of the 18th Microoptics Conference, MOC 2013).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Logic gates 100%
  • Service oriented architecture (SOA) 89%
  • Quantum Dot 74%
  • Substrates 58%
  • Compensation and Redress 21%
  2 Citations (Scopus)

• Fundamental switching operation of polymer three-dimensional optical interconnection switch

  Kobayashi, H., Hoshina, T., Yuzawa, G., Wakamatsu, K., Matsushima, Y. & Utaka, K., 2013 Oct 28, 2013 18th OptoElectronics and Communications Conference Held Jointly with 2013 International Conference on Photonics in Switching, OECC/PS 2013. 6597468. (2013 18th OptoElectronics and Communications Conference Held Jointly with 2013 International Conference on Photonics in Switching, OECC/PS 2013).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical interconnects 100%
  • Polymers 55%
  • Switches 54%
  • Polarization 34%
  • Wavelength 33%
  1 Citation (Scopus)

• Intermixing of highly-stacked InAs/InGaAlAs quantum dots grown on InP (311)B substrate by SiO₂ sputtering and annealing technique

  Matsushita, A., Matsumoto, A., Akahane, K., Matsushima, Y. & Utaka, K., 2013, 2013 International Conference on Indium Phosphide and Related Materials, IPRM 2013. 6562629. (Conference Proceedings - International Conference on Indium Phosphide and Related Materials).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Sputtering 100%
  • Annealing 77%
  • Blue shift 74%
  • Quantum Dot 69%
  • Monolithic integrated circuits 59%
  1 Citation (Scopus)

• Non-blocking 4×4 InAlGaAs/InAlAs Mach-Zehnder-type optical switch fabric

  Koyama, N., Kouketsu, H., Kawasaki, S., Takei, A., Taniguchi, T., Matsushima, Y. & Utaka, K., 2013 Aug 26, 2013 International Conference on Indium Phosphide and Related Materials, IPRM 2013. 6562620. (Conference Proceedings - International Conference on Indium Phosphide and Related Materials).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Optical switches 100%
  • Mach number 71%
  • Polarization 55%
  • Switches 26%
  5 Citations (Scopus)