External-cavity diode lasers with different devices and collimating optics

D. M. Kane, A. P. Willis

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Comparative operating characteristics of external-cavity diode lasers (ECDL’s) with either a channel substrate planar device or a multi-quantum-well (MQW) device are presented. These include the output beam profile, which is significantly altered depending on the collimating lens used (either multielement or graded index), power versus injection-current characteristics, and the optical frequency and the rf spectra. The coherence lengths of the different laser diode–collimating-lens combinations in the ECDL are measured, and a new method for calculating the coupling coefficient and the coupled values of the internal quantum efficiency and the internal lumped loss is demonstrated for the MQW device.

Original languageEnglish
Pages (from-to)4316-4325
Number of pages10
JournalApplied Optics
Volume34
Issue number21
DOIs
Publication statusPublished - 1995

Keywords

  • Collimating lens
  • Coupling coefficient
  • External-cavity diode laser

Fingerprint Dive into the research topics of 'External-cavity diode lasers with different devices and collimating optics'. Together they form a unique fingerprint.

Cite this