A Cr3+:LiSAF laser oscillator self-injection locked by an externally coupled fiber grating was constructed. Single-mode operation in a Cr3+:LiSAF laser was obtained by use of a 67%-ref lectivity fiber grating that was fabricated with a holographic technique in which a narrow-band KrF UV laser exposure was used. This configuration permits the use of a fiber grating with optimum ref lectivity for efficient single-mode operation.
© 1996 Optical Society of America
N. J. Vasa, T. Okada, M. Maeda, T. Mizunami, and O. Uchino, "Single-mode cw Cr3+:LiSrAlF6 laser using an external fiber grating," Opt. Lett. 21, 1472-1474 (1996)