Abstract

We report a pulsed intracavity sum-frequency generator in a diode-pumped, dual-wavelength Nd:YVO4 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 1342nm. At 4.8W diode pump power and 5kHz Q-switching rate, a maximum orange (593nm) output peak power of >480W was achieved in this laser system using the Q-switch opening-time offset technique. This power is ~1.7 times higher than that obtained with the system operated in a conventional single-Q-switch mode.

© 2010 Optical Society of America

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References

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  1. C. G. Bethea, IEEE J. Quantum Electron. 9, 254 (1973).
    [Crossref]
  2. R. W. Farley and P. D. Dao, Appl. Opt. 34, 4269 (1995).
    [Crossref] [PubMed]
  3. H. M. Pask and J. A. Piper, Opt. Lett. 24, 1490 (1999).
    [Crossref]
  4. Y. F. Chen and S. W. Tsai, Opt. Lett. 27, 397 (2002).
    [Crossref]
  5. G. A. Henderson, J. Appl. Phys. 68, 5451 (1990).
    [Crossref]
  6. Y. H. Chen and Y. C. Huang, Opt. Lett. 28, 1460 (2003).
    [Crossref] [PubMed]
  7. C. Y. Huang, C. H. Lin, Y. H. Chen, and Y. C. Huang, Opt. Express 15, 2548 (2007).
    [Crossref] [PubMed]

2007 (1)

2003 (1)

2002 (1)

1999 (1)

1995 (1)

1990 (1)

G. A. Henderson, J. Appl. Phys. 68, 5451 (1990).
[Crossref]

1973 (1)

C. G. Bethea, IEEE J. Quantum Electron. 9, 254 (1973).
[Crossref]

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Figures (3)

Fig. 1
Fig. 1

Schematic of the pulsed 593 nm ISFG system constructed in a diode-pumped, collinear dual-wavelength Nd : YVO 4 laser using two PPLN EO Q switches.

Fig. 2
Fig. 2

(a) Measured output peak power of the 593 nm ISFG as a function of the Q-switch opening-time offset Δ τ Q and the corresponding optimal cavity length ratio L 1 / L 2 (with L 2 fixed at 7.2 cm ) at a diode pump power of 4.8 W . (b) Measured optimum peak power of the 593 nm ISFG versus the diode pump power.

Fig. 3
Fig. 3

Measured oscilloscope traces of the two IR laser pulses (dashed curve), the 1064 nm laser pulse alone (black curve), and the 593 nm SFG pulse (gray curve) from the laser system arranged at L 1 / L 2 1.46 and operated at Δ τ Q = (a) 25 ns , (b) 0 ns , and (c) 75 ns . The inset of (b) shows the measured corresponding pulses at L 1 / L 2 1.56 .

Equations (1)

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d ϕ 1 , 2 d t = 2 T r 1 , 2 σ 1 , 2 N l ϕ 1 , 2 ϕ 1 , 2 τ c 1 , 2 c A 2 , 1 ω 1 ω 2 ω 3 η SFG T r 1 , 2 ϕ 1 ϕ 2 ,

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