If you made any changes in Pure these will be visible here soon.

Research Output 1978 2019

Filter
Conference contribution
2008

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
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

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
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
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
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
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
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
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
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
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
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
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
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
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