Abstract
A coupled resonator was developed for high efficient room-temperature single-frequency laser operating near 2 μm optical spectral region. 721 mW stable single-longitudinal-mode oscillation at 1991 nm was obtained when the absorbed pumping power was 2.4 W. The optical-tooptical efficiency was 30%, and the slope efficiency was 46%. 5 nm of frequency tuning range was obtained with stable output power. The beam propagation factors M2 were 1.43 and 1.42 in x and y directions, respectively.
Original language | English |
---|---|
Pages (from-to) | 12161-12167 |
Number of pages | 7 |
Journal | Optics Express |
Volume | 18 |
Issue number | 12 |
DOIs | |
Publication status | Published - 7 Jun 2010 |