Abstract

We report on a compact efficient diode pumped passively Q-switched Nd:GdVO4/Cr4+:YAG/PPLN intracavity optical parametric oscillator (OPO) with a shared-resonator configuration. Experimental results reveal that the amplitude stability of the shared-resonator configuration is substantially superior to that of the conventional coupled-resonator configuration. At a diode pump power of 15 W, the compact intracavity OPO cavity produces the average power greater than 900 mW with a pulse repetition rate of 36 kHz. The output pulses noticeably display the mode-locking phenomenon that leads to the maximum peak power to be higher than 20 kW.

© 2005 Optical Society of America

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References

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Appl. Opt. (1)

Appl. Phys. B (4)

Y. F. Chen, S. W. Chen, Y. C. Chen, Y. P. Lan, and S. W. Tsai, �??Compact efficient intracavity optical parametric oscillator with a passively Q-switched Nd: YVO4/Cr4+: YAG laser in a hemispherical cavity,�?? Appl. Phys. B 77, 493-495 (2003)
[CrossRef]

T. Jensen, V. G. Ostroumov, J. P. Meyn, G. Huber, A. I. Zagumennyi, and I. A. Shcherbarkov, �??Spectroscopic characterization and laser performance of diode-laser-pumped Nd:GdVO4,�?? Appl. Phys. B 58, 373-379 (1994).
[CrossRef]

G. W. Baxter, P. Schlup, and I. T. Mckinnie, �??Efficient, single frequency, high repetition rate, PPLN OPO pumped by a prelase Q-switched diode-pumped Nd:YAG laser,�?? Appl. Phys. B70, 301-304 (2000).
[CrossRef]

A.Agnesi, S. Dell�??Acqua, and G. Reali, �??Diode-pumped quasi-cw intracavity optical parametric oscillator at 1.57 µm with efficient pulse shortening,�?? Appl. Phys. B 70, 751-753 (2000).
[CrossRef]

Appl. Phys. Lett. (1)

E. O. Ammann, �?? High-average-power Raman oscillator employing a shared-resonator configuration,�?? Appl. Phys. Lett. 32, 52-54 (1978)
[CrossRef]

CLEO 1996 (1)

L. R. Marshall, �?? Efficient multiwatt 2-5 ­­­­­­­­­­µm tunable source,�?? in Proc. CLEO 9, 368-369 (1996).

IEEE J. Quantum Electron. (1)

Y. F. Chen, �??Design criteria for concentration optimization in scaling diode end-pumped lasers to high powers: influence of thermal fracture,�?? IEEE J. Quantum Electron. 35, 234-239 (1999).
[CrossRef]

J. Opt. A: Pure Appl. Opt. (2)

I. F. Elder and J. A. C. Terry, �??Efficient conversion into the near- and mid-infrared using a PPLN OPO,�?? J. Opt. A: Pure Appl. Opt. 2, L19-L23 (2000).
[CrossRef]

O. B. Jensen, T. Skettrup, O. B. Petersen, and M. B. Larsen, �??Diode-pumped intracavity optical parametric oscillator in pulsed and continuous-wave operation,�?? J. Opt. A: Pure Appl. Opt. 4, 190-193 (2002).
[CrossRef]

Opt. Commun. (1)

U. Bäder, J. Bartschke, I. Klimov, A. Borsutzky, and R. Wallenstein, �??Optical parametric oscillator of quasi-phasematched LiNbO3 pumped by a compact high repetition rate single-frequency passively Q-switched Nd:YAG laser,�?? Opt. Commun. 147, 95-98 (1998).
[CrossRef]

Opt. Lett. (5)

Other (1)

A. E. Siegman, �??Laser,�?? (University Science, Mill Valley, Calif. 1986), p.1024 and p. 1012.

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Figures (5)

Fig. 1.
Fig. 1.

Schematic of the intracavity PPLN OPO pumped by a diode-pumped passively Q-switched Nd:GdVO4/Cr4+:YAG lasers in the shared-cavity configuration.

Fig. 2.
Fig. 2.

Dependence of the generated signal wavelength on the PPLN crystal temperature. The solid line represents the theoretical results calculated with the Sellmeier equations taken from Ref. [17].

Fig. 3.
Fig. 3.

Average output powers of the signal wave with respect to the incident diode pump powers.

Fig. 4.
Fig. 4.

Dependence of the pulse repetition rate and the pulse energy on the incident pump power for the signal wave.

Fig. 5.
Fig. 5.

Typical temporal shapes for the laser and signal pulses.

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