LD-end-pumped 60 pm linewidth Tm:YLF laser

Room temperature diode-pumped 1875.1 nm Tm:GdVO4 laser

“…Thulium tervalent ions have long fluorescence lifetimes, high quantum efficiency and the absorption of thulium ter valent ions is near 790 nm which matches well with the commercially laser diodes [6]. Various 2 μm solid state lasers based on Tm doping crystal, such as Tm:YAG, Tm:YLF, Tm:KLu(WO 4 ) 2 , Tm:KYW and Tm:YAP have been studied and reported [7][8][9][10][11][12][13][14][15][16][17].…”

High power single-longitudinal-mode Nd:YAG CW laser using reflective volume Bragg grating as output coupler

“…This approach is based on intra cavity mode selection which is Volume Bragg Gratings (VBG) recorded in Photo Thermo Refractive (PTR) glass [20]. The use of RVBG as out put coupler for CW and pulsed solid state and semi conductor lasers has shown the unique characteristics, of which the narrowing and stabilization of laser spec tra occurs without output power loss [21][22][23][24][25][26]. In our experiment, a single SLM structure has been estab lished using RVBG instead of common mirror.…”

Diode-pumped Q-switched Tm:LuAG ring laser operation at room temperature

“…Compared with the crystal YAG, LuAG has a higher crystal field, leading to large man ifold splitting and low thermal occupation for the lower laser level. In experiment, Tm, Ho doped LuAG laser has achieved higher laser efficiency at 2 µm than the YAG or YLF laser [8][9][10][11][12]. Scholle et al reported a SLM Tm:LuAG laser by using a etalon at room tem perature and the maximal output power was 51 mW [13].…”