28 February 2014 Single-frequency operation of a resonantly pumped 1.645μm Er:YAG Q-switched laser
Author Affiliations +
Abstract
In this paper a resonantly pumped 1.645 μm injection-seeded single frequency Er:YAG Q-switched laser is reported. Firstly we introduce a monolithic Er:YAG non-planar ring oscillator (NPRO) developed by ourselves. The Er:YAG NPRO generated up to 10.5W 1.645 μm single frequency laser output power, with a slope efficiency of 60% and a linewidth of 18.6 kHz. The slave laser is a resonantly pumped Q-switched Er:YAG laser with a U-shape resonator and a 0.25 at.% Er:YAG crystal as the laser medium. When the pulse repetition rate was 1kHz, the Q-switched pulse energy was 5.4 mJ. Then one fraction of the single frequency laser beam from the Er:YAG NPRO was injection-seeded into a Q-switched slave laser. The Ramp-Hold-Fire technique was used to ensure the single frequency operation. Finally we obtained 1.645 μm single frequency Q-switched laser output with a pulse energy of 4.75mJ, pulse width of 336ns and pulse repetition rate of 200Hz, respectively.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ran Wang, Ran Wang, Qing Ye, Qing Ye, Yan Zheng, Yan Zheng, Mingwei Gao, Mingwei Gao, Chunqing Gao, Chunqing Gao, "Single-frequency operation of a resonantly pumped 1.645μm Er:YAG Q-switched laser", Proc. SPIE 8959, Solid State Lasers XXIII: Technology and Devices, 89590F (28 February 2014); doi: 10.1117/12.2038432; https://doi.org/10.1117/12.2038432
PROCEEDINGS
5 PAGES


SHARE
RELATED CONTENT

Generation of 1.6 ns Q switched pulses based on Yb...
Proceedings of SPIE (May 11 2015)
A single frequency double pulse Ho YLF laser for CO2...
Proceedings of SPIE (March 15 2016)
A 1.78 µJ and 285fs Yb CaF2 SESAM modelocked thin...
Proceedings of SPIE (April 26 2016)
Nd YAG V YAG microchip laser generating 1 ns long...
Proceedings of SPIE (May 19 2010)
A highly efficient pulsed Nd YVO4 laser pumped by two...
Proceedings of SPIE (January 31 2007)
Analytical model of passively Q switched Nd YAG V YAG...
Proceedings of SPIE (February 27 2009)
3.5-W output, diode-pumped Q-switched 532-nm laser
Proceedings of SPIE (August 15 1994)

Back to Top