High-power eye-safe KTA-OPO driven by YVO4/Nd:YVO4 composite laser

High-power eye-safe KTA-OPO driven by YVO4/Nd:YVO4 composite laser

We present a high-power 1.53μm laser based on intracavity KTA-OPO driven by diode-end-pumped acousto-optical Q-switched YVO4/Nd:YVO4 composite. The composite crystal was utilized for reducing the thermal effect, and the mode mismatch compensating OPO cavity was designed for efficient OPO conversion....

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Bibliographic Details
Published in:Optics communications Vol. 285; no. 16; pp. 3507 - 3509
Main Authors: Duan, Y.M., Zhu, H.Y., Zhang, G., Wang, H.Y., Zhang, Y.J.
Format: Journal Article
Language:English
Published: Elsevier B.V 15-07-2012
Subjects:
Conversion
Crystals
Eye-safe laser
Eye-safe lasers
Frequency doubling
Holes
KTA
Lasers
Neodymium
OPO
Pumps
Raman conversion
KTA
Raman conversion
Eye-safe laser
OPO
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Summary:We present a high-power 1.53μm laser based on intracavity KTA-OPO driven by diode-end-pumped acousto-optical Q-switched YVO4/Nd:YVO4 composite. The composite crystal was utilized for reducing the thermal effect, and the mode mismatch compensating OPO cavity was designed for efficient OPO conversion. The output power of eye-safe laser at 1535nm was up to 4.4W with the pump power of 27W, corresponding to a diode-to-signal conversion efficiency of 16.3%. To our knowledge, this is the highest output power in diode-end-pumped circumstances. In the experiment, the strong yellow light generated by Raman conversion and frequency doubling in the KTA crystal was observed.
Bibliography:ObjectType-Article-2
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content type line 23
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2012.03.011