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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 22 — Aug. 1, 2007
  • pp: 5336–5339

Four watt long-term stable intracavity frequency-doubling Nd:YVO4 laser of single-frequency operation pumped by a fiber-coupled laser diode

Yaohui Zheng, Huadong Lu, Fengqin Li, Kuanshou Zhang, and Kunchi Peng  »View Author Affiliations


Applied Optics, Vol. 46, Issue 22, pp. 5336-5339 (2007)
http://dx.doi.org/10.1364/AO.46.005336


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Abstract

The longitudinal-mode stability of a single-frequency intracavity frequency-doubling laser can be enhanced by increasing the ratio between the nonlinear spectral bandwidth and the gain bandwidth of the laser. A 4   W long-term stable cw single-frequency green laser is obtained using an etalon inside the laser cavity as a spectral filter. No mode hopping is observed when the laser operates for 6 h and the power fluctuation is less than ± 1.2 % . In contrast, in the situation of no etalon inside the laser cavity, mode hopping can be observed at irregular intervals and the power fluctuation is ± 3.8 % when the laser operates for 4 h.

© 2007 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3570) Lasers and laser optics : Lasers, single-mode

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 13, 2007
Manuscript Accepted: May 30, 2007
Published: July 12, 2007

Citation
Yaohui Zheng, Huadong Lu, Fengqin Li, Kuanshou Zhang, and Kunchi Peng, "Four watt long-term stable intracavity frequency-doubling Nd:YVO4 laser of single-frequency operation pumped by a fiber-coupled laser diode," Appl. Opt. 46, 5336-5339 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-22-5336

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