W.P. Risk, J.-C. Baumert, et al.
Applied Physics Letters
A blue output power of 1.2 mW at 425 nm was generated using a periodically poled KTP waveguide for frequency doubling of a grating tuned, extended-cavity laser containing an antireflection-coated GaAlAs SQW-GRINSCH laser diode as the gain element. A normalized conversion efficiency of 127%/W cm2 was achieved in the extended-cavity configuration.
W.P. Risk, J.-C. Baumert, et al.
Applied Physics Letters
Q. Chen, W.P. Risk
Electronics Letters
D.M. Burland, Stephen Ducharme, et al.
NLO 1990
Y. Kang, D.S. Bethune, et al.
LEOS 2003