Design and fabrication of circular grating coupled distributed Bragg reflector lasers

Mahmoud Fallahi, Keith J. Kasunic, Scott Penner, O. Nordman, Nasser Peyghambarian

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

The design and fabrication of circular grating surface emitting lasers are presented. The influence of device parameters on the mode selection is described. The fabrication of an InGaAs/GaAs circular grating distributed Bragg reflector (DBR) laser is presented. Significant improvement is obtained by using a quantum-well structure with a multistack and an etch-stop layer. A threshold current as low as 15 mA and an output power in excess of 170 mW without saturation are obtained. The potential of circular grating DBR laser arrays for multiwavelength operation is demonstrated.

Original languageEnglish (US)
Pages (from-to)1169-1174
Number of pages6
JournalOptical Engineering
Volume37
Issue number4
DOIs
StatePublished - Apr 1998

Keywords

  • Circular grating
  • DBR lasers
  • High power
  • Surface emission

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

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