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Research Output 1978 2018

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2018

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 journalArticle

Semiconductor optical amplifiers
Logic gates
Four wave mixing
light amplifiers
Semiconductor quantum wells
2017

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 journalArticle

Optical switches
Waveguides
switches
Polarization
waveguides
2015
10 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 journalArticle

Service oriented architecture (SOA)
Laser pulses
Logic gates
Substrates
pulses
2014
12 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 journalArticle

Mach-Zehnder interferometers
switches
high speed
optics
broadband
10 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 journalArticle

Photonics
Semiconductor quantum dots
Resonators
resonators
quantum dots
2013
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 journalArticle

Semiconductor optical amplifiers
Logic gates
light amplifiers
numerical analysis
logic
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 journalArticle

Mach-Zehnder interferometers
Optical switches
switches
Polarization
polarization
2009

Nonblocking N×N integrated photonic switching architecture using rearrangeable nested rings

Xie, N. & Utaka, K., 2009, In : Optical Engineering. 48, 9, 095401.

Research output: Contribution to journalArticle

optical switching
Photonics
Optical feedback
rings
Switching networks
16 Citations (Scopus)

Polarization-independent low-crosstalk operation of InAlGaAs-InAlAs mach-zehnder interferometer-type photonic switch with hybrid waveguide structure

Ueda, Y., Nakamura, S., Fujimoto, S., Yamada, H., Utaka, K., Shiota, T. & Kitatani, T., 2009 Aug 15, In : IEEE Photonics Technology Letters. 21, 16, p. 1118-1120 3 p.

Research output: Contribution to journalArticle

Mach-Zehnder interferometers
Optical switches
Crosstalk
crosstalk
Waveguides
32 Citations (Scopus)

Very low-power, polarization-independent, and high-speed polymer thermooptic switch

Xie, N., Hashimoto, T. & Utaka, K., 2009 Dec, In : IEEE Photonics Technology Letters. 21, 24, p. 1861-1863 3 p., 5290106.

Research output: Contribution to journalArticle

Optical switches
Polymers
switches
Switches
high speed
16 Citations (Scopus)

Very low power operation of compact MMI polymer thermooptic switch

Xie, N., Hashimoto, T. & Utaka, K., 2009 Sep 15, In : IEEE Photonics Technology Letters. 21, 18, p. 1335-1337 3 p.

Research output: Contribution to journalArticle

Crosstalk
crosstalk
Polymers
Electric power utilization
switches
2008
12 Citations (Scopus)

Tunable monolithic DWDM band-selection interleaver filter switch on silicon-on-insulator substrate

Wu, Z., Honda, S., Matsui, J., Utaka, K., Edura, T., Tokuda, M., Tsutsui, K. & Wada, W., 2008 Oct 1, In : Journal of Lightwave Technology. 26, 19, p. 3363-3368 6 p.

Research output: Contribution to journalArticle

wavelength division multiplexing
Bragg gratings
switches
insulators
filters
5 Citations (Scopus)

Very-low-current and high-speed switching operation of InAlGaAs/InAlAs/InP Mach-Zehnder interferometer-type photonic switch

Ueda, Y., Nakamura, S., Utaka, K., Shiota, T. & Kitatani, T., 2008 Sep, In : Applied Physics Express. 1, 9, p. 923011-923013 3 p.

Research output: Contribution to journalArticle

Mach-Zehnder interferometers
Optical switches
low currents
switches
high speed
2007
32 Citations (Scopus)

Largely-tunable wideband Bragg gratings fabricated on SOI rib waveguides employed by deep-RIE

Honda, S., Wu, Z., Matsui, J., Utaka, K., Edura, T., Tokuda, M., Tsutsui, K. & Wada, Y., 2007, In : Electronics Letters. 43, 11, p. 630-631 2 p.

Research output: Contribution to journalArticle

Bragg gratings
Reactive ion etching
Waveguides
Silicon
Optics
2006
2 Citations (Scopus)

Fabrication and evaluation of Bragg gratings on optimally designed silicon-on-insulator rib waveguides using electron-beam lithography

Wu, Z., Zhang, W., Wang, Z., Kai, G., Yuan, S., Dong, X., Utaka, K. & Wada, Y., 2006 Aug, In : Pan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors. 27, 8, p. 1347-1350 4 p.

Research output: Contribution to journalArticle

Bragg gratings
Electron beam lithography
Silicon
Waveguides
lithography
36 Citations (Scopus)

Operational design on high-speed semiconductor optical amplifier with assist light for application to wavelength converters using cross-phase modulation

Matsumoto, A., Nishimura, K., Utaka, K. & Usami, M., 2006 Mar, In : IEEE Journal of Quantum Electronics. 42, 3, p. 313-323 11 p., 01597418.

Research output: Contribution to journalArticle

Semiconductor optical amplifiers
Phase modulation
light amplifiers
phase modulation
converters
4 Citations (Scopus)

Tapered multimode interference combiners for coherent receivers

Wu, Z., Zhang, W., Wang, Z., Kai, G., Yuan, S., Dong, X., Utaka, K. & Yasuo, W., 2006 Feb, In : Pan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors. 27, 2, p. 328-335 8 p.

Research output: Contribution to journalArticle

Silicon
Photonics
Integrated circuits
Waveguides
receivers
2005
18 Citations (Scopus)

High-speed optical switching of InAlGaAs/InAlAs multi-mode interference photonic switch with partial index-modulation region (MIPS-P)

Kumai, S., Ishikawa, T., Okazaki, A., Hiroshi, Y., Utaka, K., Amanai, H., Kurihara, K. & Shimoyama, K., 2005, In : IEICE Electronics Express. 2, 23, p. 578-582 5 p.

Research output: Contribution to journalArticle

Optical switches
optical switching
switches
high speed
Modulation
4 Citations (Scopus)

Implementation of tapered multimode interference lightwave combiner on silicon-on-insulator substrate with negligible back-reflection

Wu, Z., Nakamura, K., Honda, S., Utaka, K., Edura, T., Tsutsui, K. & Wada, Y., 2005, In : Japanese Journal of Applied Physics, Part 2: Letters. 44, 28-32

Research output: Contribution to journalArticle

Semiconductor optical amplifiers
insulators
interference
Silicon
silicon
6 Citations (Scopus)
Plasma confinement
Heterojunctions
Waveguides
gratings
Polarization
5 Citations (Scopus)

Study on tapered multimode interference-based coherent lightwave combiners

Zhigang, W. U. & Utaka, K., 2005, In : IEICE Transactions on Electronics. E88-C, 5, p. 1005-1011 7 p.

Research output: Contribution to journalArticle

Photonics
Integrated circuits
Fabrication
2004
1 Citation (Scopus)
Michelson interferometers
couplers
converters
Monolithic microwave integrated circuits
interference
2002
15 Citations (Scopus)

Large area InP submicron two-dimensional (2D) periodic structures fabricated by two-time laser holography

Ohira, T., Segawa, T., Nagai, K., Utaka, K. & Nakao, M., 2002 Feb, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 41, 2 B, p. 1085-1089 5 p.

Research output: Contribution to journalArticle

Periodic structures
Holography
holography
reflectance
Dry etching
76 Citations (Scopus)

Multimode interference photonic switches (MIPS)

Nagai, S., Morishima, G., Inayoshi, H. & Utaka, K., 2002 Apr, In : Journal of Lightwave Technology. 20, 4, p. 675-681 7 p.

Research output: Contribution to journalArticle

Optical switches
switches
photonics
interference
Crosstalk
2000
52 Citations (Scopus)

Versatile multimode interference photonic switches with partial index-modulation regions

Yagi, M., Nagai, S., Inayoshi, H. & Utaka, K., 2000 Mar 16, In : Electronics Letters. 36, 6, p. 533-534 2 p.

Research output: Contribution to journalArticle

Optical switches
Modulation
Beam propagation method
Crosstalk
1999
13 Citations (Scopus)
Optical switches
Photonics
integrated circuits
Integrated circuits
switches
1996
Resonant tunneling
resonant tunneling
Optoelectronic devices
switches
Switches
1995

Different types of optoelectronic bistabilities in resonant-tunneling triangular-barrier optoelectronic switch (R-TOPS)

Sakata, H., Utaka, K. & Matsushima, Y., 1995 Jan 1, In : Electronics Letters. 31, 13, p. 1098-1099 2 p.

Research output: Contribution to journalArticle

Resonant tunneling
Optoelectronic devices
Switches
1 Citation (Scopus)

Resonant-tunneling triangular-barrier optoelectronic switch by gas source molecular beam epitaxy

Sakata, H., Utaka, K. & Matsushima, Y., 1995 May 1, In : Journal of Crystal Growth. 150, 1 -4 pt 2, p. 1389-1394 6 p.

Research output: Contribution to journalArticle

Gas source molecular beam epitaxy
Phototransistors
Resonant tunneling diodes
Resonant tunneling
resonant tunneling
3 Citations (Scopus)

Triangular-barrier optoelectronic switch by gas source molecular beam epitaxy

Sakata, H., Utaka, K. & Matsushima, Y., 1995 May 1, In : Journal of Crystal Growth. 150, 1 -4 pt 2, p. 1384-1388 5 p.

Research output: Contribution to journalArticle

Gas source molecular beam epitaxy
Phototransistors
Optoelectronic devices
molecular beam epitaxy
switches
1994
14 Citations (Scopus)

High sensitivity and high gain optical functional device: Triangular-barrier optoelectronic switch (TOPS)

Sakata, H., Utaka, K. & Matsushima, Y., 1994 Jan 1, In : Electronics Letters. 30, 21, p. 1792-1793 2 p.

Research output: Contribution to journalArticle

Phototransistors
Optical gain
Bias voltage
Optoelectronic devices
Switches
1 Citation (Scopus)

Metalorganic vapor phase epitaxy growth of InGaAsP multi quantum well laser diodes using entirely organic sources

Horita, M., Tsurusawa, M., Utaka, K. & Matsushima, Y., 1994 Dec 2, In : Journal of Crystal Growth. 145, 1-4, p. 886-891 6 p.

Research output: Contribution to journalArticle

Quantum well lasers
Metallorganic vapor phase epitaxy
quantum well lasers
vapor phase epitaxy
Semiconductor quantum wells
9 Citations (Scopus)

Novel bistable device; resonant-tunnelling triangular-barrier optoelectronic switch (R-TOPS)

Sakata, H., Utaka, K. & Matsushima, Y., 1994 Jan 1, In : Electronics Letters. 30, 20, p. 1714-1716 3 p.

Research output: Contribution to journalArticle

Phototransistors
Resonant tunneling diodes
Resonant tunneling
Optoelectronic devices
Switches
1993
4 Citations (Scopus)

Impurity doping in InP layer grown by metalorganic vapor-phase epitaxy using tertiarybutylphosphine and organic doping sources

Horita, M., Suzuki, M., Matsushima, Y. & Utaka, K., 1993, In : Journal of Applied Physics. 74, 7, p. 4737-4740 4 p.

Research output: Contribution to journalArticle

vapor phase epitaxy
impurities
controllability
organic compounds
electrical properties
70 Citations (Scopus)

Transform-limited optical pulse generation up to 20-GHz repetition rate by a sinusoidally driven InGaAsP electroabsorption modulator

Suzuki, M., Tanaka, H., Edagawa, N., Utaka, K. & Matsushima, Y., 1993 Mar, In : Journal of Lightwave Technology. 11, 3, p. 468-473 6 p.

Research output: Contribution to journalArticle

Electroabsorption modulators
modulators
Laser pulses
repetition
Mathematical transformations
9 Citations (Scopus)

Wavelength-tunable InGaAsP-InP multiple-λ/4-shifted distributed feedback laser

Horita, M., Utaka, K., Matsushima, Y. & Matsushima, Y., 1993 Jun, In : IEEE Journal of Quantum Electronics. 29, 6, p. 1810-1816 7 p.

Research output: Contribution to journalArticle

Distributed feedback lasers
distributed feedback lasers
frequency modulation
Linewidth
Wavelength
1992
63 Citations (Scopus)

Transform-limited 14 ps optical pulse generation with 15 GHz repetition rate by InGaAsP electroabsorption modulator

Suzuki, M., Tanaka, H., Utaka, K., Edagawa, N. & Matsushima, Y., 1992 Jan 1, In : Electronics Letters. 28, 11, p. 1007-1008 2 p.

Research output: Contribution to journalArticle

Electroabsorption modulators
Laser pulses
Mathematical transformations
Optical resonators
Pulse compression
1991
2 Citations (Scopus)

Novel wavelength-tunable active-filter-type laser diodes

Horita, M., Utaka, K. & Matsushima, Y., 1991 Jun, In : IEEE Journal of Quantum Electronics. 27, 6, p. 1625-1629 5 p.

Research output: Contribution to journalArticle

Active filters
Semiconductor lasers
Tuning
semiconductor lasers
tuning
1989
5 Citations (Scopus)

MBE growth of InAs/AlInAs strained-layer multi quantum wells for optical device applications

Matsushima, Y., Kato, H., Utaka, K. & Sakai, K., 1989 Feb 2, In : Journal of Crystal Growth. 95, 1-4, p. 210-214 5 p.

Research output: Contribution to journalArticle

Optical devices
Molecular beam epitaxy
Semiconductor quantum wells
Photoluminescence
molecular beam epitaxy
12 Citations (Scopus)

Narrow spectral linewidth of MBE-grown GaInAs/AlInAs MQW lasers in the 1.55 μm range

Matsushima, Y., Utaka, K. & Sakai, K., 1989 Jun, In : IEEE Journal of Quantum Electronics. 25, 6, p. 1376-1380 5 p.

Research output: Contribution to journalArticle

Quantum well lasers
quantum well lasers
Molecular beam epitaxy
Linewidth
molecular beam epitaxy
1988
1 Citation (Scopus)

InGaAs-CAP-MONITOR INTEGRATED 1. 55 mu m lambda /4-SHIFTED DFB LASERS WITH HIGHER OUTPUT DESIGN.

Usami, M., Akiba, S., Utaka, K. & Matsushima, Y., 1988 Aug, In : IEE proceedings. Part J, Optoelectronics. 135, 4, p. 289-297 9 p.

Research output: Contribution to journalArticle

Distributed feedback lasers
Lasers
Gaussian beams
Photodiodes
Coatings
1987
36 Citations (Scopus)

1. 5- mu M lambda /4-SHIFTED INGAASP/INP DFB LASERS.

Akiba, S., Usami, M. & Utaka, K., 1987, In : Journal of Lightwave Technology. LT-5, 11, p. 1564-1573 10 p.

Research output: Contribution to journalArticle

Distributed feedback lasers
distributed feedback lasers
Light sources
Heterojunctions
Feedback
42 Citations (Scopus)

ASYMMETRIC lambda /4-SHIFTED InGaAsP/InP DFB LASERS.

Usami, M., Akiba, S. & Utaka, K., 1987 Jun, In : IEEE Journal of Quantum Electronics. QE-23, 6, p. 815-821 7 p.

Research output: Contribution to journalArticle

Feedback
Distributed feedback lasers
flat surfaces
shift
Quantum efficiency
15 Citations (Scopus)

ROOM-TEMPERATURE CW OPERATION OF MBE-GROWN GaInAs/AlInAs MQW LASERS IN 1. 5 mu M RANGE.

Matsushima, Y., Utaka, K., Sakai, K. & Takeuchi, O., 1987 Jan 1, In : Electronics Letters. 23, 24, p. 1271-1273 3 p.

Research output: Contribution to journalArticle

Injection lasers
Molecular beam epitaxy
Wavelength
Temperature
2 Citations (Scopus)

SPECTRAL BEHAVIOUR OF AGED 1. 55 mu M lambda /4-SHIFTED DFB LASERS.

Akiba, S., Matsushima, Y., Usami, M. & Utaka, K., 1987 Jan 1, In : Electronics Letters. 23, 7, p. 316-318 3 p.

Research output: Contribution to journalArticle

Wavelength
Degradation
Distributed feedback lasers
Laser modes
Lasers
6 Citations (Scopus)

Vertical integration of an InGaAsP/InP heterojunction bipolar transistor and a double heterostructure laser

Chen, T. R., Utaka, K., Zhuang, Y. H., Liu, Y. Y. & Yariv, A., 1987, In : Applied Physics Letters. 50, 14, p. 874-876 3 p.

Research output: Contribution to journalArticle

bipolar transistors
heterojunctions
lasers
mesas
optical switching
14 Citations (Scopus)

VERTICAL MONOLITHIC COMBINATION OF AN InGaAsP/InP LASER AND A HETEROJUNCTION BIPOLAR TRANSISTOR.

Chen, T. R., Utaka, K., Utaka, K., Liu, Y. Y. & Yariv, A., 1987 Jun, In : IEEE Journal of Quantum Electronics. QE-23, 6, p. 919-924 6 p.

Research output: Contribution to journalArticle

Heterojunction bipolar transistors
bipolar transistors
heterojunctions
Lasers
lasers
1986
107 Citations (Scopus)

lambda /4-SHIFTED InGaAsP/InP DFB LASERS.

Utaka, K., Akiba, S., Sakai, K. & Matsushima, Y., 1986 Jul, In : IEEE Journal of Quantum Electronics. QE-22, 7, p. 1042-1051 10 p.

Research output: Contribution to journalArticle

Feedback
Wavelength
shift
Photoresists
Phase shift
5 Citations (Scopus)

LOW THRESHOLD lambda /4-SHIFTED InGaAsP/InP DFB LASERS.

Usami, M., Akiba, S. & Utaka, K., 1986 Apr, In : Transactions of the Institute of Electronics and Communication Engineers of Japan. Section E. E69, 4, p. 385-388 4 p.

Research output: Contribution to journalArticle

Distributed feedback lasers
Temperature
7 Citations (Scopus)
Threshold current density
Distributed feedback lasers
Laser modes
Waveguides