Title :
A Resonantly Pumped 1645 nm Er:YAG Nonplanar Ring Oscillator With 10.5 W Single Frequency Output
Author :
Ran Wang ; Chunqing Gao ; Yan Zheng ; Mingwei Gao ; Qing Ye
Author_Institution :
Sch. of Opto-Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
We demonstrate a single frequency Er:YAG nonplanar ring oscillator (NPRO) resonantly pumped by a fiber laser. Up to 10.5 W single frequency laser output with a slope efficiency of 60.03% was achieved by optimizing the parameters of the Er:YAG NPRO. At 10.5 W output power the M2-factors of the Er:YAG NPRO were 1.09 and 1.24 in the x- and y- directions, respectively. The linewidth of the Er:YAG NPRO was 18.6 kHz.
Keywords :
erbium; laser beams; optical pumping; ring lasers; solid lasers; Er:YAG NPRO linewidth; YAG:Er; fiber laser; power 10.5 W; resonantly pumped Er:YAG nonplanar ring oscillator; single frequency laser output; single frequency nonplanar ring oscillator; single frequency output; slope efficiency; wavelength 1645 nm; Er:YAG; resonant pumping; single frequency; solidstate laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2255100
