Title :
Broad-area diode lasers with plane-mirror and phase-conjugate feedback
Author :
Lawrence, J.S. ; Kane, D.M.
Author_Institution :
Phys. Dept., Macquarie Univ., Sydney, NSW, Australia
fDate :
1/1/2002 12:00:00 AM
Abstract :
The output state of a broad-area diode (BAD) laser with phase conjugate feedback (PCF) from Rh:BaTiO3 crystal is compared to the same diode laser with conventional optical feedback from a plane mirror. A number of distinct output states, including low frequency fluctuations, are observed for each feedback type. Stable single spectral mode output is achieved with phase conjugate feedback above an injection current dependent critical level (~20%). Conventional optical feedback from a plane mirror does not induce single-mode output at any feedback level
Keywords :
barium compounds; fluctuations; laser feedback; laser mirrors; laser modes; laser stability; optical phase conjugation; photorefractive materials; rhodium; semiconductor lasers; BaTiO3:Rh; Rh:BaTiO3 crystal; broad-area diode lasers; diode laser; feedback type; injection current dependent critical level; low frequency fluctuations; output state; output states; phase conjugate feedback; phase-conjugate feedback; plane mirror; plane-mirror; single-mode output; stable single spectral mode output; Diode lasers; Frequency; Laser feedback; Laser modes; Optical attenuators; Optical feedback; Optical pumping; Optical refraction; Output feedback; State feedback;
Journal_Title :
Lightwave Technology, Journal of
