• 1780 Citations
  • 24 h-Index
1978 …2020

Research output per year

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Research Output

1982

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)
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)
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)
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)
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)