Influence of the angular alignment of the optical feedback field on external cavity diode laser characteristics

J. S. Lawrence*, D. M. Kane

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Under certain operating conditions, the maximum output power from an external cavity diode laser is obtained for non-axial alignments of the external plane mirror. This is explained in terms of a spatially dependent coupling coefficient. It is found that there are different systematic sequences between the spectral content of the output and the axial alignment of the external reflector for two different laser diodes that have been used. These results give new insight into choosing the most appropriate diodes for obtaining robust single frequency operation of external cavity diode lasers, and have significant implications for reassessing the standard methodology for optimising these systems.

Original languageEnglish
Pages (from-to)316-324
Number of pages9
JournalOptics Communications
Volume159
Issue number4-6
Publication statusPublished - 1999

Keywords

  • Angular alignment
  • External cavity diode laser
  • Optical feedback field

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