Paper
28 February 2006 Microchip laser operating at 1338 nm
Author Affiliations +
Abstract
Q-switched microchip laser emitting radiation at wavelength 1338 nm was designed and realized. This laser was based on monolith crystal which combines in one piece a cooling undoped part (undoped YAG crystal, 4 mm long), active laser part (YAG crystal doped with Nd3+ ions, 12 mm long) and saturable absorber (YAG crystal doped with V3+ ions, 0.7 mm long). The diameter of the diffusion bounded monolith was 5 mm. The initial transmission of the V:YAG part was 85 %. The microchip resonator consists of dielectric mirrors directly deposited on the monolith surfaces. The pump mirror (HT for pump radiation, HR for generated radiation) was placed on the undoped YAG part. The output coupler with reflection 90 % for the generated wavelength was placed on the V3+-doped part. Q-switched microchip laser was tested under pulsed, and CW diode pumping. The pulse length it was the same for all regimes equal to 6.2 ns. The wavelength of linearly polarized laser emission was fixed to 1338 nm. The pulse energy depends on the mean pump power. For pulsed pumping the output pulse energy was stable up to mean pump power 1 W and it was equal to 135 μJ, which corresponds to peak power 22 kW. In CW regime for pumping up to 14 W the pulse energy was stabilized to 37 μJ (peak power 6 kW). The mean output power increased up to 0.4 W only by increase of the generated pulse repetition rate (11 kHz for mean pump power 14 W).
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jan Šulc, Helena Jelínkova, Karel Nejezchleb, and Václav Škoda "Microchip laser operating at 1338 nm", Proc. SPIE 6100, Solid State Lasers XV: Technology and Devices, 610005 (28 February 2006); https://doi.org/10.1117/12.641901
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Crystals

Laser crystals

Pulsed laser operation

Semiconductor lasers

YAG lasers

Continuous wave operation

Ions

RELATED CONTENT

Single crystals for laser technique
Proceedings of SPIE (October 25 2002)
Nd YAG V YAG microchip laser generating 1 ns long...
Proceedings of SPIE (May 19 2010)
High average power Nd YAG laser with Cr4+ YAG passive...
Proceedings of SPIE (April 04 1997)
Nd:YAG/V:YAG microchip laser
Proceedings of SPIE (April 17 2006)

Back to Top