Volume Bragg grating stabilized spectrally narrow Tm fiber laser
Abbreviated Journal Title
TM3+-DOPED SILICA; SINGLE-MODE; Optics
A Tm-doped large mode area (LMA) silica fiber laser has been locked to a stable wavelength of 2053.9 nm using a volume Bragg grating (VBG). The measured spectral width of the laser output was < 300 pro, limited by the spectrometer resolution. Although this laser had modest output (similar to 5 W) and slope efficiency (41%), this new approach to spectrally limiting the output of LMA fiber lasers is inherently extendable to kilowatt powers, opening up several applications including high-power pulsed fiber lasers and spectral beam combining. Performance characteristics of the laser compared to one using a dielectric mirror as a high reflector are described, and the results imply low VBG losses. (C) 2008 Optical Society of America.
"Volume Bragg grating stabilized spectrally narrow Tm fiber laser" (2008). Faculty Bibliography 2000s. 709.