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Optics Letters

Optics Letters


  • Vol. 26, Iss. 2 — Jan. 15, 2001
  • pp: 66–68

Compact, 220-ps visible laser employing single-pass, cascaded frequency conversion in monolithic periodically poled lithium niobate

A. C. Chiang, Y. C. Huang, Y. W. Fang, and Y. H. Chen  »View Author Affiliations

Optics Letters, Vol. 26, Issue 2, pp. 66-68 (2001)

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We report the first demonstration to our knowledge of 220-ps visible laser generation from passively Q-switched-laser pumped periodically poled lithium niobate (PPLN) in a single-pass, cascaded frequency-conversion process. The monolithic PPLN consists of a 1-cm section for frequency doubling the 1064-nm Nd:YAG pump laser to a 532-nm laser and a subsequent 4-cm section for generating the visible laser in a 532-nm-pumped optical parametric generation (OPG) process. In generating the 622.3-nm OPG signal wavelength we measured a 3.0-µJ/pulse pump threshold at the 1064-nm wavelength, 16% overall efficiency, and 35% slope efficiency at two times threshold. At 10-6 pump duty cycle and 20-mW average power in the visible, photorefractive damage was not observed at the phase-matching temperature of 40.3 °C.

© 2001 Optical Society of America

OCIS Codes
(140.7300) Lasers and laser optics : Visible lasers
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers

A. C. Chiang, Y. C. Huang, Y. W. Fang, and Y. H. Chen, "Compact, 220-ps visible laser employing single-pass, cascaded frequency conversion in monolithic periodically poled lithium niobate," Opt. Lett. 26, 66-68 (2001)

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