Dc. Hanna et al., QUASI-3 LEVEL 1.03 MU-M LASER OPERATION OF A PLANAR ION-IMPLANTED YB-YAG WAVE-GUIDE, Optics communications, 99(3-4), 1993, pp. 211-215
The first laser operation of an Yb: YAG waveguide is reported. Room te
mperature, continuous wave operation was achieved at a threshold of 30
mW. Projected thresholds of a few milliwatts for a channel waveguide
indicate that for quasi-three level lasers, a waveguide configuration,
even if lossy, can be highly beneficial.