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Research Output 1978 2019

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
2000
53 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
1998
2 Citations (Scopus)

New structure of multi-mode interference photonic switch with partial index-modulation regions (MIPS-P)

Utaka, K., Nagai, S., Yagi, M., Inayoshi, H. & Morishima, G., 1998 Jan 1, p. 469-470. 2 p.

Research output: Contribution to conferencePaper

Optical switches
interference
Modulation
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
Resonant tunneling
resonant tunneling
Optoelectronic devices
switches
Switches
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

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

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
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

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
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
1990

Novel active-filter-type wavelength-tunable laser diodes

Utaka, K., Horita, M. & Matsushima, Y., 1990 Jan 1, In : Conference Digest - IEEE International Semiconductor Laser Conference. p. 208-209 2 p., 764494.

Research output: Contribution to journalConference article

Laser tuning
Active filters
tunable lasers
Semiconductor lasers
semiconductor lasers
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

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
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
46 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
109 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
1985
15 Citations (Scopus)

LONGITUDINAL-MODE BEHAVIOUR OF lambda /4-SHIFTED InGaAsP/InP DFB LASERS.

Utaka, K., Akiba, S., Sakai, K. & Matsushima, Y., 1985 Jan 1, In : Electronics Letters. 21, 9, p. 367-369 3 p.

Research output: Contribution to journalArticle

Distributed feedback lasers
Phase shift
Modulation
Lasers
1984
58 Citations (Scopus)

ANALYSIS OF QUARTER-WAVE-SHIFTED DFB LASER.

Utaka, K., Akiba, S., Sakai, K. & Matsushima, Y., 1984 Jan 1, In : Electronics Letters. 20, 8, p. 326-327 2 p.

Research output: Contribution to journalArticle

Distributed feedback lasers
Mirrors
Wavelength
7 Citations (Scopus)

ASYMMETRY IN OUTPUT POWER OF InGaAsP/InP DFB LASERS.

Akiba, S., Utaka, K., Sakai, K. & Matsushima, Y., 1984 Aug, Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. 8 ed. Vol. 23. p. 1054-1059 6 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Distributed feedback lasers
Feedback
Quantum efficiency
93 Citations (Scopus)

EFFECT OF MIRROR FACETS ON LASING CHARACTERISTICS OF DISTRIBUTED FEEDBACK InGaAsP/InP LASER DIODES AT 1. 5 mu M RANGE.

Utaka, K., Akiba, S., Sakai, K. & Matsushima, Y., 1984 Mar, In : IEEE Journal of Quantum Electronics. QE-20, 3, p. 236-245 10 p.

Research output: Contribution to journalArticle

Distributed feedback lasers
lasing
flat surfaces
Mirrors
mirrors
75 Citations (Scopus)

lambda /4-SHIFTED InGaAsP/InP DFB LASERS BY SIMULTANEOUS HOLOGRAPHIC EXPOSURE OF POSITIVE AND NEGATIVE PHOTORESISTS.

Utaka, K., Akiba, S., Sakai, K. & Matsushima, Y., 1984 Jan 1, In : Electronics Letters. 20, 24, p. 1008-1010 3 p.

Research output: Contribution to journalArticle

Distributed feedback lasers
Photoresists
Wavelength
Phase shift
Scanning electron microscopy
1983
32 Citations (Scopus)

DISTRIBUTED FEEDBACK InGaAsP/InP LASERS WITH WINDOW REGION EMITTING AT 1. 5 mu m RANGE.

Akiba, S., Utaka, K., Sakai, K. & Matsushima, Y., 1983 Jun, In : IEEE Journal of Quantum Electronics. QE-19, 6, p. 1052-1056 5 p.

Research output: Contribution to journalArticle

Distributed feedback lasers
distributed feedback lasers
Feedback
Lasers
flat surfaces
1982

1. 5 mu m RANGE InGaAsP/InP DISTRIBUTED FEEDBACK BURIED HETEROSTRUCTURE (DFB-BH) LASERS.

Sakai, K., Akiba, S., Utaka, K. & Matsushima, Y., 1982, In : Denshi Tokyo. 21, p. 22-24 3 p.

Research output: Contribution to journalArticle

Heterojunctions
Feedback
Lasers
Laser modes
Temperature
41 Citations (Scopus)

1. 5 mu m RANGE InGaAsP/InP DISTRIBUTED FEEDBACK LASERS.

Sakai, K., Utaka, K., Akiba, S. & Matsushima, Y., 1982 Aug, In : IEEE Journal of Quantum Electronics. QE-18, 8, p. 1272-1278 7 p.

Research output: Contribution to journalArticle

lasing
Feedback
thresholds
Lasers
Distributed feedback lasers
16 Citations (Scopus)

280 MBIT/S SINGLE-MODE FIBRE TRANSMISSION WITH DFB LASER DIODE EMITTING AT 1. 53 mu m.

Yamamoto, S., Utaka, K., Akiba, S., Sakai, K., Matsushima, Y., Sakaguchi, S. & Seki, N., 1982 Mar 4, In : Electronics Letters. 18, 5, p. 239-240 2 p.

Research output: Contribution to journalArticle

Telecommunication systems
Telecommunication repeaters
Distributed feedback lasers
Single mode fibers
Semiconductor lasers

DISTRIBUTED BRAGG REFLECTOR INTEGRATED TWIN-GUIDE LASER IN THE 1. 5 mu M WAVELENGTH.

Suematsu, Y., Utaka, K., Kobayashi, K., Kishino, K., Abe, Y. & Koyama, F., 1982, Japan Annual Reviews in Electronics, Computers & Telecommunications: Optical Devices & Fibers. Tokyo, Jpn: Ohmsha Ltd, p. 128-140 13 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Distributed Bragg reflectors
Wavelength
Lasers
Semiconductor lasers
Modulation
55 Citations (Scopus)

HIGH-SPEED-RESPONSE INGAAS/INP HETEROSTRUCTURE AVALANCHE PHOTODIODE WITH INGAASP BUFFER LAYERS.

Matsushima, Y., AKIBA, S., SAKAI, K., KUSHIRO, Y., NODA, Y. & Utaka, K., 1982 Jan 1, In : ELECTRON LETT. V 18, N 22, p. 945-946 2 p.

Research output: Contribution to journalArticle

Avalanche photodiodes
Buffer layers
Heterojunctions
Piles
32 Citations (Scopus)

LOW-THRESHOLD-CURRENT DISTRIBUTED-FEEBACK InGaAsP/InP cw LASERS.

Akiba, S., Utaka, K., Sakai, K. & Matsushima, Y., 1982 Jan 1, In : Electronics Letters. 18, 2, p. 77-78 2 p.

Research output: Contribution to journalArticle

Heterojunctions
Current density
Feedback
Lasers
Temperature
7 Citations (Scopus)

TEMPERATURE DEPENDENCE OF LASING CHARACTERISTICS OF InGaAsP/InP DISTRIBUTED FEEDBACK LASERS IN 1. 5 mu m RANGE.

Akiba, S., Utaka, K., Sakai, K. & Matsushima, Y., 1982 Dec, Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. 12 Pt 1 ed. Vol. 21. p. 1736-1740 5 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Distributed feedback lasers
Temperature
Injection lasers
Threshold current density
Wavelength
1981
9 Citations (Scopus)
DBR lasers
Distributed Bragg reflectors
Heterojunctions
Wavelength
Lasers
89 Citations (Scopus)

ROOM-TEMPERATURE cw OPERATION OF DISTRIBUTED-FEEDBACK BURIED-HETEROSTRUCTURE InGaAsP/InP LASERS EMITTING AT 1. 57 mu m.

Utaka, K., Akiba, S., Sakai, K. & Matsushima, Y., 1981 Jan 1, In : Electronics Letters. 17, 25-26, p. 961-963 3 p.

Research output: Contribution to journalArticle

Heterojunctions
Feedback
Lasers
Laser modes
Wavelength