Threshold Gain and Threshold Current Analysis of Circular Grating DFB and DBR Lasers

Chunmeng Wu, Toshihiko Makino, S. Iraj Najafi, Romain Maciejko, Mikelis Svilans, Jan Glinski, Mahmoud Fallahi

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

A TE-cylindrical wave threshold gain and threshold current analysis is presented for circular grating distributed feedback (CG-DFB) and circular grating distributed-Bragg-reflector (CG-DBR) lasers. Mode properties of CG-DFB/DBR lasers are discussed. It is found that the threshold gain, threshold current density and threshold current of CG-DBR lasers can be much lower than those of CG-DFB lasers.

Original languageEnglish (US)
Pages (from-to)2596-2606
Number of pages11
JournalIEEE Journal of Quantum Electronics
Volume29
Issue number10
DOIs
StatePublished - Oct 1993

ASJC Scopus subject areas

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

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