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Proceedings Paper

High-power (1.1W) green (532nm) laser source based on single-pass second harmonic generation on a compact micro-optical bench
Author(s): P. Q. Liu; C. Fiebig; M. Uebernickel; G. Blume; D. Feise; A. Sahm; D. Jedrzejczyk; K. Paschke; G. Erbert
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Paper Abstract

We demonstrate a compact high-power green (532nm) laser module based on single-pass second harmonic generation. The pump source is a distributed Bragg reflector tapered diode laser. The frequency conversion is achieved with a 2.5 cm long periodically poled MgO:LiNbO3 bulk crystal. The entire module is integrated on a compact micro-optical bench with a footprint of 2.5 cm3. Up to 1.1 W output green light power is achieved at a pump power of 7.6 W with an optical conversion efficiency of about 15% and a corresponding module wall-plug efficiency of more than 4%. The green laser beam has a relatively good beam quality (measured at output power level of ~0.9 W) with M²σ=1.8 in the vertical direction and M²=4.9 in the lateral direction, respectively. The long-term output power stability is ±10% (tested at output power level of ~0.6 W).

Paper Details

Date Published: 22 February 2011
PDF: 7 pages
Proc. SPIE 7917, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X, 791704 (22 February 2011); doi: 10.1117/12.878013
Show Author Affiliations
P. Q. Liu, Ferdinand-Braun-Institut (Germany)
Princeton Univ. (United States)
C. Fiebig, Ferdinand-Braun-Institut (Germany)
M. Uebernickel, Ferdinand-Braun-Institut (Germany)
G. Blume, Ferdinand-Braun-Institut (Germany)
D. Feise, Ferdinand-Braun-Institut (Germany)
A. Sahm, Ferdinand-Braun-Institut (Germany)
D. Jedrzejczyk, Ferdinand-Braun-Institut (Germany)
K. Paschke, Ferdinand-Braun-Institut (Germany)
G. Erbert, Ferdinand-Braun-Institut (Germany)


Published in SPIE Proceedings Vol. 7917:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X
Konstantin L. Vodopyanov, Editor(s)

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