Chinese Optics Letters, 2005, 3 (4): 04222, Published Online: Jun. 6, 2006
The influence of OH groups on laser performance in phosphate glasses
160.2750 glass and other amorphous materials 140.3380 laser materials 140.3460 lasers 140.3530 lasers neodymium
Abstract
Because of the influence of OH groups in phosphate glasses on the radiation of rare-earth ions, the laser performance is degraded. The laser efficiency and the small signal gain experiment of several phosphate glass samples have been done, the concentration of OH groups in glasses was calculated from the measured absorption coefficient at 3.47 μm. It is shown that the concentration of OH groups in phosphate glasses can seriously influence the laser output characteristics, and the OH groups have worse influence on the laser amplifier than laser oscillator.
Shunguang Li, Guosong Huang, Lei Wen, Gangfeng Yang. The influence of OH groups on laser performance in phosphate glasses[J]. Chinese Optics Letters, 2005, 3(4): 04222.