Experimental investigations of harmonic synchronization conditions and mechanisms of mode-locked laser diodes induced by optical-pulse injection

Hisakazu Kurita, Takanori Shimizu, Hiroyuki Yokoyama

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

We investigated the detailed characteristics of synchronization of mode-locked laser diodes (MLLD's) by subharmonic optical pulse injection. It was shown that optical harmonic injection mode-locking was not very sensitive to injection pulse shapes. In the time domain, subharmonic injection pulses were multiplexed inside the MLLD and these multiplexed pulses effectively modulated the absorbance of the saturable absorber at the MLLD's repetition frequency. It was also found in the spectral domain that injection pulse trains should have optical spectrum components broader than the MLLD's intermode spacing, and injection spectral components should couple to at least two modes of the MLLD.

Original languageEnglish
Pages (from-to)508-513
Number of pages6
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume2
Issue number3
DOIs
Publication statusPublished - 1996 Sep 1
Externally publishedYes

ASJC Scopus subject areas

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

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