• 1781 Citations
  • 24 h-Index
1978 …2020

Research output per year

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

Research Output

1978

Monolithic Integration of Laser and Amplifier/Detector by Twin-Guide Structure

Kishino, K., Suematsu, Y., Utaka, K. & Kawanishi, H., 1978 Jan 1, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 17, 3, p. 589-590 2 p.

Research output: Contribution to journalArticle

40 Citations (Scopus)

TWIN-GUIDE LASER MONOLITHICALLY INTEGRATED WITH AMPLIFIER OR DETECTOR.

Kishino, K., Suematsu, Y., Utaka, K. & Kawanishi, H., 1978 Jan 1, p. MD6. 1-MD6. 4.

Research output: Contribution to conferencePaper

Twin-Guide Laser with Narrow Radiation Angle

Utaka, K., Kishino, K. & Suematsu, Y., 1978 Jan 1, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 17, 4, p. 751-752 2 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
1979

Gaxln1-xAsyP1-y/InP Injection Laser Partially Loaded with First-Order Distributed Bragg Reflector

Kawanishi, H., Suematsu, Y., Utaka, K., Itaya, Y. & Arai, S., 1979 Aug, In : IEEE Journal of Quantum Electronics. 15, 8, p. 701-706 6 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)

MEASUREMENT OF COUPLING COEFFICIENT AND COUPLING LENGTH OF GaAs/AlGaAs INTEGRATED TWIN-GUIDE INJECTION LASERS PREPARED BY LIQUID-PHASE-EPITAXY.

Utaka, K., Suematsu, Y., Kishino, K. & Kawanishi, H., 1979 Jan 1, In : Trans Inst Electron Commun Eng Jpn Sect E (Engl). E62, 5, p. 319-323 5 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
1980

1·5–1·6 µm GaInAsP/InP integrated twin-guide lasers with first-order distributed bragg reflectors

Utaka, K., Kobayashi, K., Kishino, K. & Suematsu, Y., 1980 Jun 5, In : Electronics Letters. 16, 12, p. 455-456 2 p.

Research output: Contribution to journalArticle

28 Citations (Scopus)

GaInAsP/InP integrated twin-guide lasers with first-order distributed bragg reflectors at 1.3 µm wavelength

Utaka, K., Suematsu, Y., Kobayashi, K. & Kawanishi, H., 1980 Mar, In : Japanese journal of applied physics. 19, 3, p. L137-L140

Research output: Contribution to journalArticle

85 Citations (Scopus)

Single-mode oscillation under high-speed direct modulation in gainasp/inp integrated twin-guide lasers with distributed bragg reflectors

Sakakibara, Y., Furuya, K., Utaka, K. & Suematsu, Y., 1980 Jun 5, In : Electronics Letters. 16, 12, p. 456-458 3 p.

Research output: Contribution to journalArticle

37 Citations (Scopus)
1981

CW operation of 1.5 ∼ 1.6 µm wavelength GalnAsP/InP buried-heterostructure integrated twin-guide laser with distributed Bragg reflector

Kobayashi, K., Utaka, K., Abe, Y. & Suematsu, Y., 1981 May 28, In : Electronics Letters. 17, 11, p. 366-368 3 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Lasing Characteristics of 1.5-1.6 εm GalnAsP/lnP Integrated Twin-Guide Lasers with First-Order Distributed Bragg Reflectors

Utaka, K., Kobayashi, K. I. & Suematsu, Y., 1981 May, In : IEEE Journal of Quantum Electronics. 17, 5, p. 651-658 8 p.

Research output: Contribution to journalArticle

66 Citations (Scopus)

Room-temperature CW operation of distributed-feedback buried-heterostructure InGaAsP/InP lasers emitting at 1.57 μm

Utaka, K., Akiba, S., Sakai, K. & Matsushima, Y., 1981 Dec 10, In : Electronics Letters. 17, p. 961-963 3 p.

Research output: Contribution to journalArticle

89 Citations (Scopus)

Single-wavelength operation of 1.53 µm GalnAsP/lnP buried-heterostructure integrated twin-guide laser with distributed Bragg reflector under direct modulation up to 1 GHz

Utaka, K., Kobayashi, K., Koyama, F., Abe, Y. & Suematsu, Y., 1981 May 28, In : Electronics Letters. 17, 11, p. 368-369 2 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)
1982

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

Sakai, K., Akiba, S., Utaka, K. & Matsushima, Y., 1982 Jan 1, In : Denshi Tokyo. 21, p. 22-24 3 p.

Research output: Contribution to journalArticle

1.5 μm Range InGaAsP/InP Distributed Feedback Lasers

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

Research output: Contribution to journalArticle

41 Citations (Scopus)

280 Mbit/s single-mode fibre transmission with DFB laser diode emitting at 1.53 μm

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

16 Citations (Scopus)

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 Jan 1, In : Japan Annual Reviews in Electronics, Computers & Telecommunications: Optical Devices & Fibers. p. 128-140 13 p.

Research output: Contribution to journalArticle

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 Oct 28, In : Electronics Letters. 18, 22, p. 945-946 2 p.

Research output: Contribution to journalArticle

55 Citations (Scopus)

Low-threshold-current distributed-feedback InGaAsP/InP CW lasers

Akiba, S., Utaka, K., Sakai, K. & Matsushima, Y., 1982 Jan 21, In : Electronics Letters. 18, 2, p. 77-78 2 p.

Research output: Contribution to journalArticle

32 Citations (Scopus)

Temperature Dependence of Lasing Characteristics of InGaAsP/InP Distributed Feedback Lasers in 1.5 Ɓm Range

Akiba, S., Utaka, K., Sakai, K. & Matsushima, Y., 1982 Dec, In : Japanese journal of applied physics. 21, 12, p. 1736-1740 5 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
1983

Distributed Feedback InGaAsP/lnP Lasers with Window Region Emitting at 1.5 μm Range

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

Research output: Contribution to journalArticle

33 Citations (Scopus)
1984

Analysis of quarter-wave-shifted DFB laser

Utaka, K., Akiba, S., Sakai, K. & Matsushima, Y., 1984 Apr 12, In : Electronics Letters. 20, 8, p. 326-327 2 p.

Research output: Contribution to journalArticle

58 Citations (Scopus)

Asymmetry in Output Power of InGaAsP/InP DFB Lasers

Akiba, S., Utaka, K., Sakai, K. & Matsushima, Y., 1984 Aug, In : Japanese journal of applied physics. 23, 8 R, p. 1054-1059 6 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Effect of Mirror Facets on Lasing Characteristics of Distributed Feedback InGaAsP/lnP Laser Diodes at 1.5 μm Range

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

Research output: Contribution to journalArticle

94 Citations (Scopus)

λ/4-shifted InGaAsP/InP DFB lasers by simultaneous holographic exposure of positive and negative photoresists

Utaka, K., Akiba, S., Sakai, K. & Matsushima, Y., 1984 Nov 22, In : Electronics Letters. 20, 24, p. 1008-1010 3 p.

Research output: Contribution to journalArticle

75 Citations (Scopus)
1985

Longitudinal-Mode Behaviour Of λ/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

15 Citations (Scopus)
1986

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

Usami, M., Akiba, S. & Utaka, K., 1986 Apr 1, 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 journalConference article

5 Citations (Scopus)

TE/TM RATIO IN InGaAsP/InP lambda /4-SHIFTED DFB LASERS WITH NON-REFLECTIVE ENDS.

Akiba, S., Usami, M. & Utaka, K., 1986 Apr 1, In : Transactions of the Institute of Electronics and Communication Engineers of Japan. Section E. E69, 4, p. 389-391 3 p.

Research output: Contribution to journalConference article

7 Citations (Scopus)

γ/4-Shifted InGaAsP/InP DFB Lasers

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

Research output: Contribution to journalArticle

109 Citations (Scopus)
1987

1.5-μm λ/4-Shifted InGaAsP/InP DFB Lasers

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

Research output: Contribution to journalArticle

37 Citations (Scopus)

Asymmetric λ/4-Shifted InGaAsP/InP DFB Lasers

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

Research output: Contribution to journalArticle

46 Citations (Scopus)

A Vertical Monolithic Combination of an InGaAsP/InP Laser and a Heterojunction Bipolar Transistor

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

Research output: Contribution to journalArticle

14 Citations (Scopus)

Room-Temperature CW Operation of Mbe-Grown Galnas/AllnAs Mow Lasers IN 1.5 μm Range

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

Research output: Contribution to journalArticle

15 Citations (Scopus)

Spectral behaviour of aged 1.55 μm λ/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

2 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 Dec 1, In : Applied Physics Letters. 50, 14, p. 874-876 3 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
1988

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 Jan 1, In : IEE proceedings. Part J, Optoelectronics. 135, 4, p. 289-297 9 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

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

Matsushima, Y., Utaka, K. & Sakai, K., 1988 Dec 1, p. 194-195. 2 p.

Research output: Contribution to conferencePaper

1989

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

5 Citations (Scopus)

Narrow Spectral Linewidth of MBE-Grown GalnAs / AlInAs MQW Lasers in the 1.55 μm Range

Matsushima, Y., Utaka, K. & Sakai, K., 1989 Jan 1, In : IEEE Journal of Quantum Electronics. 25, 6, p. 1376-1380 5 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)
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

1991

Novel Wavelength-Tunable Active-Filter-Type Laser Diodes

Horita, M., Utaka, K. & Matsushima, Y., 1991 Jan 1, In : IEEE Journal of Quantum Electronics. 27, 6, p. 1625-1629 5 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
1992

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

Suzuki, M., Tanaka, H., Utaka, K., Edagawa, N. & Matsushima, Y., 1992 May 21, In : Electronics Letters. 28, 11, p. 1007-1008 2 p.

Research output: Contribution to journalArticle

63 Citations (Scopus)

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

1993

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 Dec 1, In : Journal of Applied Physics. 74, 7, p. 4737-4740 4 p.

Research output: Contribution to journalArticle

4 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

70 Citations (Scopus)

Wavelength-Tunable InGaAsP-InP Multiple-λ/4-Shifted Distributed Feedback Laser

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

Research output: Contribution to journalArticle

9 Citations (Scopus)
1994

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

14 Citations (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

1 Citation (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

10 Citations (Scopus)
1995

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

Sakata, H., Utaka, K. & Matsushima, Y., 1995 Jun 22, In : Electronics Letters. 31, 13, p. 1098-1099 2 p.

Research output: Contribution to journalArticle

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

Sakata, H., Utaka, K. & Matsushima, Y., 1995 Jan 1, In : Conference Proceedings - International Conference on Indium Phosphide and Related Materials. p. 524-527 4 p.

Research output: Contribution to journalConference article