Frequency-difference stabilization of distributed-feedback laser diodes by use of an optical frequency translation circuit

Kaoru Shimizu, Tsuneo Horiguchi, Yahei Koyamada

研究成果: Article査読

6 被引用数 (Scopus)

抄録

Frequency-difference stabilization over a 100-GHz range is demonstrated for two distributed-feedback laser diodes (LD’s) by utilizing a loss-compensated optical loop with a frequency shifter. A light wave emitted from a master distributed-feedback LD is modulated into a pulse. The pulse is then circulated around the optical loop to shift its frequency to the difference required between the master and slave distributed-feedback LD’s. A continuous-wave pulse from the slave LD is mixed with the frequency-shifted pulse, and their beat frequency is measured with a conventional low-speed heterodyne receiver. The frequency of the slave laser is adjusted by controlling the injection current so that the heterodyne beat frequency is kept constant. The error in the center frequency difference was estimated to be within the submegahertz range for a short period of 10 min.

本文言語English
ページ(範囲)1819-1821
ページ数3
ジャーナルOptics Letters
18
21
DOI
出版ステータスPublished - 1993 11 1

ASJC Scopus subject areas

  • 原子分子物理学および光学

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