Self-induced frequency scanning and distributed Bragg reflection in semiconductor lasers with phase-conjugate feedback
- Creators
- Cronin-Golomb, Mark
- Yariv, Amnon
Abstract
A GaAlAs semiconductor laser with feedback from a barium titanate photorefractive ring passive phase-conjugate mirror can be made to perform repeating or nonrepeating frequency scans over a 10-nm range toward either the blue or the red. The direction of scanning and whether the scans repeat may be controlled by adjusting the overlap of the interaction beams in the crystal. This overlap region may be adjusted so that the diode frequency spectrum, originally occupying about 10 longitudinal modes, scans and narrows as the conjugate signal builds up, coming to rest often in one, but sometimes two or three, longitudinal modes as a result of self-generated distributed-feedback effects. We also report similar effects caused by feedback from the total-internal-reflection passive phase-conjugate mirror. The alignment-control mechanism of the ring mirror is, however, not available in this case.
Additional Information
© Copyright 1986 Optical Society of America Received December 16, 1985; accepted April 9, 1986 The research was supported by the U.S. Army Research Office, Durham, North Carolina.Files
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Additional details
- Eprint ID
- 3106
- Resolver ID
- CaltechAUTHORS:CROol86c
- Created
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2006-05-15Created from EPrint's datestamp field
- Updated
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2019-10-02Created from EPrint's last_modified field