1.
Opt Lett
; 34(22): 3511-3, 2009 Nov 15.
Article
in English
| MEDLINE
| ID: mdl-19927194
ABSTRACT
Up to 136 mW of cw single-frequency output at 295 nm was obtained from a frequency-quadrupled optically pumped semiconductor laser. The highly strained InGaAs quantum-well semiconductor laser operates at 1178 nm in a single frequency. The single-frequency intracavity-doubled 589 nm output is further converted to 295 nm in an external resonator using beta-BaB(2)O(4).