We report what we believe to be the first planar-technology waveguide laser in the 2-μm region. Laser operation of the 3H4 to 3H6 transition of Tm3+ ions in a lead germanate glass host has been observed in an ion-implanted planar waveguide.
© 1994 Optical Society of America
Original Manuscript: December 10, 1993
Published: July 1, 1994
D. P. Shepherd, G. Kakarantzas, P. D. Townsend, D. J. B. Brinck, J. Wang, A. C. Tropper, and D. C. Hanna, "1.9-μm operation of a Tm:lead germanate glass waveguide laser," Opt. Lett. 19, 954-956 (1994)