Department of Physics2024-11-1020021559-128X10.1364/AO.41.0043562-s2.0-0037143319http://dx.doi.org/10.1364/AO.41.004356https://hdl.handle.net/20.500.14288/17231The operation of a room-temperature, continuous-wave, intracavity frequency-doubled Cr4+:forsterite laser capable of producing broadly tunable output in the orange-red region of the electromagnetic spectrum is described. Intracavity doubling was achieved in a periodically poled lithium niobate crystal that had gratings with different periods. Tunable second-harmonic output could be obtained between 613 and 655 am. At a wavelength of 630 nm, intracavity doubling yielded as much as 45 mW of continuous-wave output. To the author's knowledge, this represents the highest second-harmonic-power generation obtained to date with a continuous-wave Cr4+:forsterite laser.OpticsJournal Article2155-3165176972100018Q313120