Mp. Leflohic et al., ROOM-TEMPERATURE CONTINUOUS-WAVE UP-CONVERSION LASER AT 455-NM IN A TM3+ FLUOROZIRCONATE FIBER, Optics letters, 19(23), 1994, pp. 1982-1984
A room-temperature blue upconversion laser operating at 455 nm is demo
nstrated in a Tm3(+)-doped fluorozirconate fiber when the laser is exc
ited simultaneously at 645 and 1064 nm, permitting as much as 3 mW of
cw blue laser output.