A room-temperature Tm:YVO4 laser at 1.94 μm has been demonstrated for the first time to our knowledge. This laser is characterized by a broad bandwidth and a large absorption cross section for the 800-nm pump band. A slope efficiency of 25% was obtained under nonoptimal conditions.
© 1992 Optical Society of America
Original Manuscript: September 4, 1991
Published: February 1, 1992
H. Saito, S. Chaddha, R. S. F. Chang, and N. Djeu, "Efficient 1.94-μm Tm3+ laser in YVO4 host," Opt. Lett. 17, 189-191 (1992)