Katsuyuki Utaka

2019

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

Reactive ion etching

Ion implantation

Semiconductor quantum dots

ion implantation

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

Semiconductor quantum dots

ion implantation

Energy gap

quantum dots

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 Jan 1, 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

Ion implantation

Photonics

Semiconductor quantum dots

Integrated circuits

Photoluminescence

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 1, 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

Optics and Photonics

Quantum Dots

Ion implantation

Photonics

Semiconductor quantum dots

2018

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

Shirai, T., Ishikawa, A., Matsushima, Y., Ishikawa, H. & Utaka, K., 2018 Jan 2, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-January. p. 316-317 2 p.

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

Optical switches

carrier injection

Waveguides

switches

waveguides

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., 2018 Jan 1, (Accepted/In press) In : Physica Status Solidi (A) Applications and Materials Science.

Research output: Contribution to journal › Article

Semiconductor optical amplifiers

Logic gates

Four wave mixing

light amplifiers

Semiconductor quantum wells

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., 2018 Jan 2, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-January. p. 92-93 2 p.

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

Ion implantation

Semiconductor quantum dots

Light sources

lasing

ion implantation

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 1, Proceedings of the 2018 Photonics in Switching and Computing, PSC 2018. Manousakis, K., Iezekiel, S., Tomkos, I., Ellinas, G. & Utaka, K. (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

Mach number

switches

high speed

Polarization

Welcome note

Iezekiel, S., Tomkos, I., Utaka, K., Calabretta, N., Marom, D., Takahashi, R., Taubenblatt, M. & Ellinas, G., 2018 Sep 1, In : Proceedings of the 2018 Photonics in Switching and Computing, PSC 2018. 8751221.

Research output: Contribution to journal › Editorial

2017

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

Silicon

Phase shift

Mach number

Waveguides

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

surface plasmon resonance

Waveguides

waveguides

sensitivity

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 Jan 1, Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017. OSA - The Optical Society, Vol. Part F122-CLEOPR 2017. s2084

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

Surface plasmon resonance

Waveguides

Sensors

1 Citation (Scopus)

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 1, In : Japanese Journal of Applied Physics. 56, 12, 120304.

Research output: Contribution to journal › Article

Optical switches

Waveguides

switches

Polarization

waveguides

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

Semiconductor quantum dots

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

Quantum dot lasers

Semiconductor lasers

Temperature

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

Polymers

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

surface plasmon resonance

Polymers

Waveguides

waveguides

1 Citation (Scopus)

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

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

Photonics

Semiconductor quantum dots

integrated circuits

Integrated circuits

implantation

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 interconnects

Optical switches

Polymers

switches

Polarization

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

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

Ion implantation

Photonics

Semiconductor quantum dots

Resonators

Quantum dot lasers

2015

11 Citations (Scopus)

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

Service oriented architecture (SOA)

Laser pulses

Logic gates

Substrates

pulses

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

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

Optical switches

Crosstalk

Waveguides

Silicon

2014

16 Citations (Scopus)

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

Mach-Zehnder interferometers

switches

high speed

optics

broadband

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

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

Piezoelectricity

Logic gates

Service oriented architecture (SOA)

Substrates

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, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. Institute of Electrical and Electronics Engineers Inc., 6880561

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

Logic gates

Service oriented architecture (SOA)

Laser pulses

Laser modes

Autocorrelation

2 Citations (Scopus)

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 (OSA)

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

Optical switches

Mach number

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, Optics InfoBase Conference Papers. Optical Society of America

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

Optical switches

Mach number

switches

high speed

7 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, Conference on Optical Fiber Communication, Technical Digest Series. Institute of Electrical and Electronics Engineers Inc., 6886566

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

Optical switches

Mach number

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

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

Surface plasmon resonance

Refractive index

Waveguides

Fabrication

Wavelength

12 Citations (Scopus)

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

Photonics

Semiconductor quantum dots

Resonators

resonators

quantum dots

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, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. Institute of Electrical and Electronics Engineers Inc., 6880523

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

Reactive ion etching

Semiconductor quantum dots

Resonators

Etching

Waveguides

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

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

Carbon nanotubes

Waveguides

Optical properties

2013

1 Citation (Scopus)

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

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

Logic gates

Service oriented architecture (SOA)

Substrates

Semiconductor quantum dots

1 Citation (Scopus)

Fundamental switching operation of polymer three-dimensional optical interconnection switch

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

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

Optical interconnects

Switches

Polarization

Wavelength

Polymers

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, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. 6562629

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

Semiconductor quantum dots

Sputtering

Monolithic integrated circuits

Annealing

Substrates

4 Citations (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, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. 6562620

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

Optical switches

Mach number

Switches

Polarization

24 Citations (Scopus)

Numerical analysis of ultrafast performances of all-optical logic-gate devices integrated with InAs QD-SOA and ring resonators

Matsumoto, A., Kuwata, K., Matsushita, A., Akahane, K. & Utaka, K., 2013, In : IEEE Journal of Quantum Electronics. 49, 1, p. 51-58 8 p., 6332458.

Research output: Contribution to journal › Article

Semiconductor optical amplifiers

Logic gates

light amplifiers

numerical analysis

logic

1 Citation (Scopus)

Polymer waveguide-type Kretschmann-structure surface plasmon sensor at 1550nm wavelength range

Hidaka, N., Kuroda, Y., Matsushima, Y. & Utaka, K., 2013, Technical Digest of the 18th Microoptics Conference, MOC 2013. 6715136

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

2-Propanol

Surface plasmon resonance

Propanol

Surface structure

Remote sensing

Polymer wavelength-selective filter using high-mesa structure directly-coupled double micro-ring resonators

Takei, Y., Matsumoto, A., Matsushita, A., Akahane, K., Matsushima, Y. & Utaka, K., 2013, Technical Digest of the 18th Microoptics Conference, MOC 2013. 6715087

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

Resonators

Polymers

Wavelength

Structural dependence of the switching characteristics of 2×2 InAlGaAs/InAlAs Mach-Zehnder-type optical switch

Kawasaki, S., Koketsu, H., Koyama, N., Takei, A., Taniguchi, T., Matsushima, Y. & Utaka, K., 2013, Technical Digest of the 18th Microoptics Conference, MOC 2013. 6715113

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

Optical switches

Crosstalk

Mach number

Polarization

Fabrication

2012

10 Citations (Scopus)

4 ×4 InAlGaAs/InAlAs optical-switch fabric by cascading mach-zehnder interferometer-type optical switches with low-power and low-polarization- dependent operation

Ueda, Y., Koyama, N., Kambayashi, K., Fujimoto, S., Utaka, K., Shiota, T. & Kitatani, T., 2012, In : IEEE Photonics Technology Letters. 24, 9, p. 757-759 3 p., 6151035.

Research output: Contribution to journal › Article

Mach-Zehnder interferometers

Optical switches

switches

Polarization

polarization

Low power consumption optical switches for high- to low-end applications

Utaka, K., 2012, 2012 International Conference on Photonics in Switching, PS 2012. 6608343

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

Optical switches

Fiber optic networks

Electric power utilization

Polymers

Polymer micro-ring-resonator wavelength-selective filter

Matsushita, A., Kuwata, K., Matsumoto, A. & Utaka, K., 2012, Technical Digest - 2012 17th Opto-Electronics and Communications Conference, OECC 2012. p. 267-268 2 p. 6276473

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

Resonators

Wavelength

Polymers

Proposal of polymer three-dimensional optical switch and demonstration of fundamental transmission characteristics of passive optical interconnection circuit

Hoshina, T., Tatsuzaki, T., Yuzawa, G., Kobayashi, H., Matsushima, Y. & Utaka, K., 2012, European Conference and Exhibition on Optical Communication, ECEOC 2012.

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

Optical interconnects

Optical switches

Electric power utilization

Demonstrations

Polarization

Proposal of polymer three-dimensional optical switch and demonstration of fundamental transmission characteristics of passive optical interconnection circuit

Hoshina, T., Tatsuzaki, T., Yuzawa, G., Kobayashi, H., Matsushima, Y. & Utaka, K., 2012, European Conference on Optical Communication, ECOC. 6705990

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

Optical interconnects

Optical switches

Polymers

Electric power utilization

Demonstrations

2011

3 Citations (Scopus)

4×4 InAlGaAs/InAlAs optical switch fabric by cascading Mach-Zehnder interferometer-type optical switches with low-power and low-polarization- dependent operation

Ueda, Y., Koyama, N., Kambayash, K., Fujimoto, S., Utaka, K., Shiota, T. & Kitatani, T., 2011, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. 5978336

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

Mach-Zehnder interferometers

Optical switches

Polarization

Next generation networks

Crosstalk

Proposal and numerical analysis of ultra-fast optical logic devices with integrated InAs QD-SOA and ring resonators

Matsumoto, A., Kuwata, K., Akahane, K. & Utaka, K., 2011, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. 5978343

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

Logic devices

Logic gates

Service oriented architecture (SOA)

Numerical analysis

Resonators

Proposal of polarization-independent silicon wire-waveguide directional coupler optical switch

Ushio, T., Tsukamoto, K. & Utaka, K., 2011, Conference Program - MOC'11: 17th Microoptics Conference. 6110301

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

Directional couplers

Optical switches

directional couplers

Silicon

proposals

Ultra-low power optical switches

Utaka, K., 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference, OFC/NFOEC 2011. 5875294

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

Mach-Zehnder interferometers

Optical switches

Crosstalk

Polymers

Electric power utilization

Ultra-low power optical switches

Utaka, K., 2011, Optics InfoBase Conference Papers.

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

high polymers

Mach-Zehnder interferometers

Optical switches

Crosstalk

crosstalk