Stable coherent coupling of laser diodes by a volume Bragg grating in photothermorefractive glass
Abbreviated Journal Title
PHASE-LOCKING; HIGH-POWER; ARRAY; CAVITY; INJECTION; BEAM; Optics
Two separate laser diodes emitting near 980 nm were coupled by a thick volume Bragg grating recorded in a photothermorefractive glass. The coupled diodes emitted at the same wavelength with a spectral width narrowed to below the resolution of the spectrum analyzer (< 30 pm). Coherent emission at a pumping level greater than five times above the threshold was observed for several months with near-unity visibility of the interference pattern. (c) 2006 Optical Society of America.
"Stable coherent coupling of laser diodes by a volume Bragg grating in photothermorefractive glass" (2006). Faculty Bibliography 2000s. 6672.