Pulsed orange generation optimized in a diode-pumped Nd:YVO4 laser using monolithic dual PPLN electro-optic Q switches

We report a pulsed intracavity sum-frequency generator in a diode-pumped, dual-wavelength Nd:YVO(4) laser whose operation was optimized with two electro-optic Q switches built in a monolithic periodically poled lithium niobate (PPLN) crystal. The dual PPLN Q switches, though integrated, are able to...

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Bibliographic Details
Published in:Optics letters 2010-08, Vol.35 (16), p.2687-2689
Main Authors: CHANG, W. K, CHEN, Y. H, CHANG, J. W
Format: Article
Language:English
Subjects:
Color
Diode-pumped lasers
Doped-insulator lasers and other solid state lasers
Electricity
Electrodes
Exact sciences and technology
Frequency conversion
harmonic generation, including high-order harmonic generation
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Lasers
Niobium - chemistry
Nonlinear optics
Optical Phenomena
Optics
Oxides - chemistry
Physics
Q-switching
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Summary:We report a pulsed intracavity sum-frequency generator in a diode-pumped, dual-wavelength Nd:YVO(4) laser whose operation was optimized with two electro-optic Q switches built in a monolithic periodically poled lithium niobate (PPLN) crystal. The dual PPLN Q switches, though integrated, are able to work separately at their respective working wavelengths of 1064 and 1342 nm. At 4.8 W diode pump power and 5 kHz Q-switching rate, a maximum orange (593 nm) output peak power of >480 W was achieved in this laser system using the Q-switch opening-time offset technique. This power is approximately 1.7 times higher than that obtained with the system operated in a conventional single-Q-switch mode.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.35.002687