Blue light with a cw power in excess of 42 mW is generated from a frequency-doubled, extended-cavity InGaAs/GaAs 980-nm surface-emitting laser by use of a periodically poled KTP crystal.
No takes yet. Share an insight, caveat, or question.
Rafailov et al. (2003) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: