We demonstrate an all-solid quasi-continuous-wave (QCW) narrow-band source tunable to sodium D-2a line at 589.159 nm. The source is based on sum-frequency mixing between lasers at 1064 nm and 1319 nm in a LBO crystal. The 1064 nm and 1319 nm lasers are produced from two diode side-pumped Nd:YAG master oscillator power amplifier (MOPA) laser systems, respectively. A 33 W output of 589 nm laser is obtained with beam quality factor M-2 = 1.25, frequency stability better than +/- 0.2 GHz and linewidth less than 0.44 GHz. A prototype 589 nm laser system is assembled, and a sodium laser guided star has been successfully observed in the field test.
1.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Funct Crystal & Laser Technol, Res Ctr Laser Phys & Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China 4.Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA
Recommended Citation:
Wang Peng-Yuan,Xie Shi-Yong,Bo Yong,et al. 33 W quasi-continuous-wave narrow-band sodium D-2a laser by sum-frequency generation in LBO[J]. CHINESE PHYSICS B,2014,23(9).
