1. 5- mu M lambda /4-SHIFTED INGAASP/INP DFB LASERS.

Shigeyuki Akiba, Masashi Usami, Katsuyuki Utaka

研究成果: Article

36 引用 (Scopus)

抄録

A single-wavelength light source in the 1. 5- mu m range was developed using InGaAsP/InP lambda /4-shifted distributed feedback (DFB) semiconductor heterostructures. Superiority of the lambda /4-shifted DFB structure in terms of stability of the main mode at the Bragg wavelength was shown theoretically. The threshold, the output, and the polarization characteristics were taken into account. A lambda /4-shifted corrugated grating was made by a recently developed negative and positive photoresists technique. Buried heterostructure (BH) diode lasers with nonreflective window ends were fabricated and highly stable single-mode operation with a low threshold was obtained reproducibly. Direct modulation properties and life-tests results indicated that the lambda /4-shifted DFB lasers could be a reliable single-mode light source in a long-span lightwave transmission system in the 1. 5- mu m range.

元の言語English
ページ(範囲)1564-1573
ページ数10
ジャーナルJournal of Lightwave Technology
LT-5
発行部数11
出版物ステータスPublished - 1987
外部発表Yes

Fingerprint

Distributed feedback lasers
distributed feedback lasers
Light sources
Heterojunctions
Feedback
Wavelength
light sources
Photoresists
Laser modes
Semiconductor lasers
polarization characteristics
thresholds
Modulation
Polarization
Semiconductor materials
photoresists
wavelengths
semiconductor lasers
gratings
modulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

これを引用

1. 5- mu M lambda /4-SHIFTED INGAASP/INP DFB LASERS. / Akiba, Shigeyuki; Usami, Masashi; Utaka, Katsuyuki.

:: Journal of Lightwave Technology, 巻 LT-5, 番号 11, 1987, p. 1564-1573.

研究成果: Article

Akiba, S, Usami, M & Utaka, K 1987, '1. 5- mu M lambda /4-SHIFTED INGAASP/INP DFB LASERS.', Journal of Lightwave Technology, 巻. LT-5, 番号 11, pp. 1564-1573.
Akiba, Shigeyuki ; Usami, Masashi ; Utaka, Katsuyuki. / 1. 5- mu M lambda /4-SHIFTED INGAASP/INP DFB LASERS. :: Journal of Lightwave Technology. 1987 ; 巻 LT-5, 番号 11. pp. 1564-1573.
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