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Optical generation of a precise microwave frequency comb by harmonic frequency locking

  • Sze-Chun Chan*
  • , Guang-Qiong Xia
  • , Jia-Ming Liu
  • *Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

A semiconductor laser under negative optoelectronic feedback is applied to the generation of a microwave frequency comb through the nonlinear dynamics. The laser system is operated in a harmonic frequency-locked pulsing state, where its power spectrum is a microwave frequency comb that consists of multiples of a locking frequency. Every frequency component of the comb can be simultaneously stabilized by simply injecting an external microwave modulation at any component of the comb. This phenomenon can be viewed as a kind of microwave injection locking of the laser dynamics. © 2007 Optical Society of America.
Original languageEnglish
Pages (from-to)1917-1919
JournalOptics Letters
Volume32
Issue number13
Online published25 Jun 2007
DOIs
Publication statusPublished - 1 Jul 2007
Externally publishedYes

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