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Research Output 1978 2019

Filter
Conference contribution
1988

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

Matsushima, Y., Utaka, K. & Sakai, K., 1988, Conf Dig 11th IEEE Int Semicond Laser Conf. New York, NY, USA: Publ by IEEE, p. 194-195 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Quantum well lasers
Molecular beam epitaxy
Linewidth
Semiconductor quantum wells
Optical fibers
1992

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

Utaka, K., Tsurusawa, M., Horita, M. & Matsushima, Y., 1992 Jan 1, Conference Digest - 13th IEEE International Semiconductor Laser Conference. Institute of Electrical and Electronics Engineers Inc., p. 86-87 2 p. 763584. (Conference Digest - IEEE International Semiconductor Laser Conference; vol. 1992-September).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Distributed feedback lasers
distributed feedback lasers
Linewidth
frequency modulation
Tuning
1995

Optically controlled S- and N-shaped negative differential resistances by R-TOPS

Sakata, H., Utaka, K. & Matsushima, Y., 1995, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. IEEE, p. 524-527 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Resonant tunneling
resonant tunneling
Optoelectronic devices
switches
Switches
1996
6 Citations (Scopus)

Proposal of new narrow-band wavelength filter using grating-assisted vertical contra-directional coupler

Tanaka, S., Utaka, K., Yamamoto, T., Horita, M. & Matsushima, Y., 1996, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. IEEE, p. 234-237 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Directional couplers
directional couplers
narrowband
proposals
gratings
1998
3 Citations (Scopus)

Proposal of novel InGaAsP/InP multi-mode interference photonic switches

Nagai, S., Kogure, N., Morishima, G. & Utaka, K., 1998, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. IEEE, p. 691-694 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Semiconductor switches
Switching functions
Optical switches
Finite difference time domain method
proposals
2001

Fundamental evaluation of semiconductor waveguide-type in-line wavelength selective filter with Fabry-Perot etalon resonator

Otaka, M., Takahashi, S., Utaka, K., Horita, M. & Yazaki, T., 2001, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. p. 170-173 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Resonators
Waveguides
resonators
Semiconductor materials
waveguides

InP 2D nano-structures fabricated by two-time laser holography

Ohira, T., Segawa, T., Nagai, K., Takahashi, S., Utaka, K. & Nakao, M., 2001, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. p. 268-271 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Holography
holography
Dry etching
Lasers
Substrates
2002

Fabrication of 3D a-Si/SiO 2 photonic crystals on 2D sub-micron-patterned InP substrates

Segawa, T., Utaka, K., Naganuma, M., Sato, H., Kawakami, S., Izutsu, M. & Nakao, M., 2002, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. p. 561-564 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Periodic structures
Photonic crystals
photonics
Fabrication
fabrication

Fabrication of Michelson interferometer-type wavelength converter integrated with multi-mode interference coupler (MIWC-MMIC)

Yoshioka, K., Uchida, K., Matsumoto, A. & Utaka, K., 2002, Conference Digest - IEEE International Semiconductor Laser Conference. p. 119-120 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Michelson interferometers
couplers
converters
interference
Fabrication
2003
2 Citations (Scopus)

Horn-shaped multimode interference-based N×1 combiners

Wu, Z. & Utaka, K., 2003, Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest. Institute of Electrical and Electronics Engineers Inc., Vol. 2. p. 564 1 p. 1277111

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Insertion losses
insertion loss
adjusting
curvature
interference
2004
2 Citations (Scopus)

Fabrication of InGaAsP/InP coupled waveguides loaded with long-period grating for gain equalizing device

Oishi, J., Abe, T., Tabuchi, H. & Utaka, K., 2004, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. p. 232-235 4 p. TP-29

Research output: Chapter in Book/Report/Conference proceedingConference contribution

notches
transmittance
Waveguides
gratings
waveguides

Fabrication of large-area and very uniform two-dimensional sub-micron periodic patterns on 1500nm range multi-quantum well structures using two-time laser holography

Nakaoka, H., Murakami, S., Nakano, T., Honma, K., Utaka, K. & Nakao, M., 2004, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. p. 167-170 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Photoexcitation
Holography
holography
Semiconductor quantum wells
quantum wells

Spectral chirping suppressed wavelength conversion at 10Gbit/s using cross gain modulation in semiconductor optical amplifier with injection of counter-propagating assist light

Yazaki, T., Inohara, R., Nishimura, K., Usami, M., Matsumoto, A. & Utaka, K., 2004, Conference Digest - IEEE International Semiconductor Laser Conference. p. 101-102 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical frequency conversion
Semiconductor optical amplifiers
Service oriented architecture (SOA)
chirp
light amplifiers
2005
3 Citations (Scopus)

Dependence of efficiency ratio of XPM to XGM on control pulse propagation direction in SOA

Nishimura, K., Usami, M., Asai, T. & Utaka, K., 2005, Optics InfoBase Conference Papers. Optical Society of America

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Service oriented architecture (SOA)
propagation
pulses
light beams
causes

Long-period grating loaded semiconductor separate confinement heterostructure (SCH) waveguide for polarization-independent gain equalizing devices

Abe, T., Tabuchi, H., Terada, K. & Utaka, K., 2005, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. Vol. 2005. p. 566-569 4 p. 1517560

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Plasma confinement
notches
Heterojunctions
Waveguides
gratings
2006

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

Ishikawa, T., Kumai, S., Utaka, K., Amanai, H., Kurihara, K. & Shimoyama, K., 2006, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. Vol. 2006. p. 16-18 3 p. 1634100

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical switches
Modulation
2 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., Utaka, K., Amanai, H., Kurihara, K. & Shimoyama, K., 2006 Dec 14, Proceedings - Thirteenth International Symposium on Temporal Representation and Reasoning, TIME 2006. Vol. 2006. 1636588

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical switches
Modulation
Semiconductor materials

Tunable wavelength-band switch using large coupling-coefficient Bragg grating on SOI rib waveguide

Wu, Z., Honda, S., Matsui, J., Utaka, K., Edura, T., Tokuda, M., Tsutsui, K. & Wada, Y., 2006, 2006 International Conference on Photonics in Switching, Proceedings, PS. p. 105-107 3 p. 4350151

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bragg gratings
Waveguides
Switches
Silicon
Wavelength
2007
1 Citation (Scopus)

Analysis of InAlGaAs/InAlAs/InP multi-mode interference photonic switch with Mach-Zehnder interferometer for higher switching performances

Ueda, Y., Ishikawa, T. & Utaka, K., 2007, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. p. 264-266 3 p. 4265931

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mach-Zehnder interferometers
Optical switches
Crosstalk
Electric power utilization
switches

Analysis of optical signal regenerating performance by nonlinear directional coupler loaded with SOA and long-period grating

Ochiai, T., Kawakami, Y. & Utaka, K., 2007, 2007 Photonics in Switching, PS. p. 75-76 2 p. 4300757

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Directional couplers
Semiconductor optical amplifiers
Regenerators
Wavelength
Computer simulation

Design for ultra-compact high-speed semiconductor photonic switch by high-Δ structures and bend waveguides for large-scale switching fabric

Ueda, Y., Ishikawa, T., Nakamura, S. & Utaka, K., 2007, 2007 Photonics in Switching, PS. p. 39-40 2 p. 4300733

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Semiconductor switches
Optical switches
Waveguides
Mach-Zehnder interferometers
Structural design

Design on polarization independent side-long-period-grating loaded semiconductor waveguide-type gain equalizing devices

Terada, K., Fujii, E., Wu, Z. & Utaka, K., 2007, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. p. 260-263 4 p. 4265930

Research output: Chapter in Book/Report/Conference proceedingConference contribution

gratings
waveguides
polarization
3 Citations (Scopus)

Proposal of a novel MMI-based NxN non-blocking optical ring switch

Xie, N. & Utaka, K., 2007, OFC/NFOEC 2007 - Optical Fiber Communication and the National Fiber Optic Engineers Conference 2007. 4348315

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Switches
Optical switches
Crosstalk
Electric power utilization
Topology

Proposal of a novel MMI-based NxN non-blocking optical ring switch

Xie, N. & Utaka, K., 2007, Optics InfoBase Conference Papers. Optical Society of America

Research output: Chapter in Book/Report/Conference proceedingConference contribution

proposals
switches
Switches
Optical switches
rings

Proposal of a novel MMI-based NxN non-blocking optical ring switch

Xie, N. & Utaka, K., 2007, Optics InfoBase Conference Papers. Optical Society of America

Research output: Chapter in Book/Report/Conference proceedingConference contribution

proposals
switches
Switches
Optical switches
rings
2008
1 Citation (Scopus)

Compact and low power operation polymer MMI photonic switch

Xie, N., Hashimoto, T. & Utaka, K., 2008, 2008 Int. Nano-Optoelectronics Workshop, iNOW 2008 in Cooperation With Int. Global-COE Summer School (Photonics Integration-Core Electronics: PICE) and 31st Int. Symposium on Optical Communications. p. 287-288 2 p. 4634548

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical switches
Crosstalk
Polymers
Electric power utilization
6 Citations (Scopus)

Compact and low power operation thermo-optic MMI-based polymer photonic switch

Xie, N. & Utaka, K., 2008, 2008 Joint Conference of the Opto-Electronics and Communications Conference and the Australian Conference On Optical Fibre Technology, OECC/ACOFT 2008. 4610425

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical switches
Optics
Polymers
Crosstalk
Switches

Fabrication of silicon mold for thermal nanoimprint lithography

Matsui, J., Takahashi, H., Xie, N., Mizuno, J. & Utaka, K., 2008, 2008 Int. Nano-Optoelectronics Workshop, iNOW 2008 in Cooperation With Int. Global-COE Summer School (Photonics Integration-Core Electronics: PICE) and 31st Int. Symposium on Optical Communications. p. 267-268 2 p. 4634540

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nanoimprint lithography
Reactive ion etching
Surface roughness
Fabrication
Silicon

High-speed semiconductor photonic spatial switch for optical packet switching

Utaka, K., Ueda, Y., Nakamura, S., Shiota, T. & Kitatani, T., 2008, 2008 Int. Nano-Optoelectronics Workshop, iNOW 2008 in Cooperation With Int. Global-COE Summer School (Photonics Integration-Core Electronics: PICE) and 31st Int. Symposium on Optical Communications. p. 78-79 2 p. 4634452

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mach-Zehnder interferometers
Packet switching
Photonics
Switches
Semiconductor materials
1 Citation (Scopus)

Optimal design of an InAlGaAs/InAlAs Mach-Zehnder type multi-mode interference photonic switch (MIPS-MZ) for polarization-independent and low-crosstalk switching operation

Ueda, Y., Nakamura, S. & Utaka, K., 2008, 2008 International Conference on Photonics in Switching, PS 2008. 4804251

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical switches
Crosstalk
Mach number
Polarization
Mach-Zehnder interferometers

Study on polarization-independent and low-crosstalk operation of InAlGaAs/InAlAs Mach-Zehnder Interferometer type high-speed photonic switch

Ueda, Y., Nakamura, S., Fujimoto, S., Yamada, H. & Utaka, K., 2008, 2008 Int. Nano-Optoelectronics Workshop, iNOW 2008 in Cooperation With Int. Global-COE Summer School (Photonics Integration-Core Electronics: PICE) and 31st Int. Symposium on Optical Communications. p. 333-334 2 p. 4634569

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mach-Zehnder interferometers
Optical switches
Phase shifters
Crosstalk
Waveguides

Study on S/N-ratio characteristics by coherent crosstalk of Mach-Zehnder Interferometer-type photonic switch

Fujimoto, S., Ueda, Y., Nakamura, S., Yamada, H. & Utaka, K., 2008, 2008 Int. Nano-Optoelectronics Workshop, iNOW 2008 in Cooperation With Int. Global-COE Summer School (Photonics Integration-Core Electronics: PICE) and 31st Int. Symposium on Optical Communications. p. 279-280 2 p. 4634544

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mach-Zehnder interferometers
Optical switches
Crosstalk
Switches
1 Citation (Scopus)

Versatile optical switching of 4x4 novel slotted multi-mode interference phase-arrayed photonic switch

Nakamura, S., Ueda, Y., Fujimoto, S., Yamada, H. & Utaka, K., 2008, 2008 Int. Nano-Optoelectronics Workshop, iNOW 2008 in Cooperation With Int. Global-COE Summer School (Photonics Integration-Core Electronics: PICE) and 31st Int. Symposium on Optical Communications. p. 343-344 2 p. 4634572

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical switches
Waveguides
Modulation

Very-low-current operation of InAlGaAs/InAlAs/InP mach-zehnder interferometer-type multi-mode interference photonic switch (MIPS-MZ)

Ueda, Y., Nakamura, S., Utaka, K., Shiota, T. & Kitatani, T., 2008, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. 4702989

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Semiconductor switches
Mach-Zehnder interferometers
Optical switches
Seed
2009

Polarization-independent and low-current operation of InAlGaAs/InAlAs mach-zehnder interferometer-type photonic switch with hybrid-waveguide structure for optical packet switching

Ueda, Y., Nakamura, S., Fujimoto, S., Yamada, H., Utaka, K., Shiota, T. & Kitatani, T., 2009, European Conference on Optical Communication, ECOC. 5287091

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mach-Zehnder interferometers
Packet switching
Optical switches
Waveguides
Polarization

Proposal and design of sub-mW and high-speed polymer thermo-Optic switch

Xie, N., Hashimoto, T. & Utaka, K., 2009, 2009 International Conference on Photonics in Switching, PS '09. 5307805

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical switches
Optics
Electric power utilization
Switches
Polymers
3 Citations (Scopus)

Ultimate-low-power-consumption, polarization-independent, and high-speed polymer Mach-Zehnder thermo-optic switch

Xie, N., Hashimoto, T. & Utaka, K., 2009, Conference on Optical Fiber Communication, Technical Digest Series. Institute of Electrical and Electronics Engineers Inc., 5032937

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mach number
Optics
Polymers
Electric power utilization
Switches
2010

High sensitive surface plasmon resonance sensor in metallic grating loaded waveguide

Shimazu, H., Takasaki, K. & Utaka, K., 2010, Technical Digest - 15th OptoElectronics and Communications Conference, OECC2010. p. 854-855 2 p. 5588499

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Surface plasmon resonance
Waveguides
Sensors
Prisms
Remote sensing

Proposal of InAlGaAs/InAlAs/InP 1x2 cross-point optical switch with mode-spot modulation MMI waveguide and 45° TIR mirror

Fujimoto, S., Ueda, Y., Kambayashi, K. & Utaka, K., 2010, Conference Proceedings - International Conference on Indium Phosphide and Related Materials. p. 241-244 4 p. 5516064

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical switches
Mirrors
Waveguides
Modulation
Switches

Short length of single walled-carbon nano tubes for application to optical devices

Kato, S., Miyazaki, Y., Takashima, T. & Utaka, K., 2010, Technical Digest - 15th OptoElectronics and Communications Conference, OECC2010. p. 552-553 2 p. 5588658

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical devices
Carbon
Wavelength
Optical communication
Oils and fats
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 proceedingConference 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 proceedingConference 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 proceedingConference 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 proceedingConference 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 proceedingConference contribution

high polymers
Mach-Zehnder interferometers
Optical switches
Crosstalk
crosstalk
2012

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 proceedingConference 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 proceedingConference 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 proceedingConference 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 proceedingConference contribution

Optical interconnects
Optical switches
Polymers
Electric power utilization
Demonstrations
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 proceedingConference contribution

Logic gates
Service oriented architecture (SOA)
Substrates
Semiconductor quantum dots