Proc. SPIE. 5332, Solid State Lasers XIII: Technology and Devices
KEYWORDS: Tunable lasers, Crystals, Laser induced fluorescence, Laser stabilization, Laser crystals, Color centers, Pulsed laser operation, Color center lasers, Current controlled current source, Absorption
The first room temperature stable tunable color center (CC) distributed feedback (DFB) laser is described. The laser utilizes stabilized F2+** centers in LiF (LiF:F2+**) as a gain medium. Tunable DFB lasing was achieved in the near IR region (882 - 962 nm) with a lasing linewidth of less than 0.2 cm-1. The lasing threshold was found to be 1.2 mJ, while the slope efficiency with respect to pump energy was found to be as high as 3%.