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Applied Optics

Applied Optics


  • Vol. 43, Iss. 15 — May. 20, 2004
  • pp: 3174–3177

Unidirectional single-frequency operation of a Nd:YVO4 ring laser with and without a Faraday element

Benjamin A. Thompson, Ara Minassian, and Michael J. Damzen  »View Author Affiliations

Applied Optics, Vol. 43, Issue 15, pp. 3174-3177 (2004)

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We demonstrate high-performance unidirectional and single-frequency ring-laser operation based on a diode-side-pumped Nd:YVO4 bounce amplifier, obtained in a ring system both with and without a Faraday rotating element. Ring-laser operation with intracavity Faraday unidirectional element produces 15-W cw output in a TEM00 and single-longitudinal mode with beam propagation parameter M2 < 1.1 with 35-W diode pumping. A novel non-Faraday-based ring laser uses a polarization-dependent output coupler and asymmetric polarization state in the birefringent Nd:YVO4 gain medium and is demonstrated to produce highly unidirectional (1200:1) single-frequency output of 14 W in a TEM00 mode with beam propagation factor M2 < 1.2 at 30 W of diode pumping.

© 2004 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3560) Lasers and laser optics : Lasers, ring
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.3580) Lasers and laser optics : Lasers, solid-state

Original Manuscript: November 18, 2003
Revised Manuscript: February 9, 2004
Published: May 20, 2004

Benjamin A. Thompson, Ara Minassian, and Michael J. Damzen, "Unidirectional single-frequency operation of a Nd:YVO4 ring laser with and without a Faraday element," Appl. Opt. 43, 3174-3177 (2004)

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