Room-temperature continuous-wave laser action in chromium-activated forsterite (Cr:Mg2SiO4) has been achieved for longitudinal pumping in a nearly concentric cavity by the 1064-nm radiation from a cw Nd:YAG laser. The laser emission is centered at 1244 nm and has a spectral bandwidth of 12 nm. An output-power slope efficiency of 6.8% is measured. The effective emission cross section is estimated to be ∼1.1 × 10−19 cm2.
© 1989 Optical Society of America
Original Manuscript: September 21, 1988
Manuscript Accepted: March 12, 1989
Published: June 15, 1989
V. Petričević, S. K. Gayen, and R. R. Alfano, "Continuous-wave laser operation of chromium-doped forsterite," Opt. Lett. 14, 612-614 (1989)