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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 15 — Aug. 1, 2009
  • pp: 2288–2290

Electro-optic control of a PPLN-unpoled Li Nb O 3 boundary for low-voltage Q switching of an intracavity frequency-doubled Nd 3 + : Y V O 4 laser

A. J. Torregrosa, H. Maestre, C. R. Fernández-Pousa, J. A. Pereda, and J. Capmany  »View Author Affiliations

Optics Letters, Vol. 34, Issue 15, pp. 2288-2290 (2009)

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We present a simple technique to integrate an electro-optic Q switch in a periodically poled bulk lithium niobate crystal bounded by two unpoled (monodomain) regions. The technique exploits the high sensitivity to low applied electric fields of the total internal reflection condition in the periodic poled–unpoled boundary for the small grazing incidence angles associated with the diffraction of a focused Gaussian beam that propagates in the periodically poled region with its axis parallel to the boundary. When the arrangement is placed intracavity to a 1064 nm diode-pumped Nd 3 + : Y V O 4 laser, it performs simultaneously as a Q switch and as a second-harmonic generator, with Q switching starting at applied voltages as low as 1 V over a 500 μ m thickness and with no additional optical elements.

© 2009 Optical Society of America

OCIS Codes
(130.3730) Integrated optics : Lithium niobate
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.7300) Lasers and laser optics : Visible lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(230.2090) Optical devices : Electro-optical devices

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 13, 2009
Revised Manuscript: June 10, 2009
Manuscript Accepted: June 17, 2009
Published: July 21, 2009

A. J. Torregrosa, H. Maestre, C. R. Fernández-Pousa, J. A. Pereda, and J. Capmany, "Electro-optic control of a PPLN-unpoled LiNbO3 boundary for low-voltage Q switching of an intracavity frequency-doubled Nd3+:YVO4 laser," Opt. Lett. 34, 2288-2290 (2009)

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