Single-frequency gain-switched Ho-doped fiber laser

摘要

We demonstrate a single-frequency gain-switched Ho-doped fiber laser based on heavily doped silicate glass fiberfabricated in house. A Q-switched Tm-doped fiber laser at 1.95μm was used to gain-switch the Ho-doped fiber laser via in-band pumping. Output power of the single-frequency gain-switched pulses has been amplified in a cladding-pumped Tm-Ho-codoped fiber amplifier with 1.2m active fiber pumped at 803nm. Two different nonlinear effects, i.e.,modulation instability and stimulated Brillouin scattering, could be seen in the 10μm-core fiber amplifier when thepeak power exceeds 3kW. The single-frequency gain-switched fiber laser was operated at 2.05μm, a popular laserwavelength for Doppler lidar application. This is the first demonstration of this kind of fiber laser.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.