Longitudinal-Mode Behaviour Of λ/4-Shifted InGaAsP/InP DFB Lasers

K. Utaka, S. Akiba, K. Sakai, Y. Matsushima

研究成果: Article査読

17 被引用数 (Scopus)

抄録

Longitudinal-mode behaviour of λ/4-shifted InGaAsP/lnP DFB lasers fabricated by the nega-posi method have been studied. The deviation of the main mode from the centre of the stopband, which was attributed to an accidental additional phase shift introduced around the λ/4-shifted position, was related to the intensity ratio of the main to side mode below the threshold, and it was much larger compared to conventional DFB lasers for the devices with small deviation. The intensity ratio above the threshold was about 35 dB or more in 100% direct modulation for most of the lasers.

本文言語English
ページ(範囲)367-369
ページ数3
ジャーナルElectronics Letters
21
9
DOI
出版ステータスPublished - 1985 1 1
外部発表はい

ASJC Scopus subject areas

  • 電子工学および電気工学

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