ASYMMETRY IN OUTPUT POWER OF InGaAsP/InP DFB LASERS.

Shigeyuki Akiba, Katsuyuki Utaka, Kazuo Sakai, Yuichi Matsushima

Research output: Chapter in Book/Report/Conference proceedingChapter

7 Citations (Scopus)

Abstract

The output powers from the two ends of a distributed feedback (DFB) region were compared. The power ratios and the external differential quantum efficiencies of the lowest-threshold modes were calculated in detail for an asymmetric end structure, one end being a cleaved facet and the other end being non-reflective. Power ratios of 2-5, depending on the corrugation phase at the cleaved facet, were predicted for kL equals 2-3. Such large ratios were actually estimated experimentally in InGaAsP/InP DFB lasers with a window region at one end. A larger output from a window region may be useful if the window region length is restricted, to about 10 mu m or less in this case. The asymmetric output power in an FP-type DFB laser was also demonstrated.

Original languageEnglish
Title of host publicationJapanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
Pages1054-1059
Number of pages6
Volume23
Edition8
Publication statusPublished - 1984 Aug
Externally publishedYes

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Distributed feedback lasers
Feedback
Quantum efficiency

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Akiba, S., Utaka, K., Sakai, K., & Matsushima, Y. (1984). ASYMMETRY IN OUTPUT POWER OF InGaAsP/InP DFB LASERS. In Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes (8 ed., Vol. 23, pp. 1054-1059)

ASYMMETRY IN OUTPUT POWER OF InGaAsP/InP DFB LASERS. / Akiba, Shigeyuki; Utaka, Katsuyuki; Sakai, Kazuo; Matsushima, Yuichi.

Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. Vol. 23 8. ed. 1984. p. 1054-1059.

Research output: Chapter in Book/Report/Conference proceedingChapter

Akiba, S, Utaka, K, Sakai, K & Matsushima, Y 1984, ASYMMETRY IN OUTPUT POWER OF InGaAsP/InP DFB LASERS. in Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. 8 edn, vol. 23, pp. 1054-1059.
Akiba S, Utaka K, Sakai K, Matsushima Y. ASYMMETRY IN OUTPUT POWER OF InGaAsP/InP DFB LASERS. In Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. 8 ed. Vol. 23. 1984. p. 1054-1059
Akiba, Shigeyuki ; Utaka, Katsuyuki ; Sakai, Kazuo ; Matsushima, Yuichi. / ASYMMETRY IN OUTPUT POWER OF InGaAsP/InP DFB LASERS. Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. Vol. 23 8. ed. 1984. pp. 1054-1059
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