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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 5, Iss. 10 — Jul. 19, 2010

Watt-level self-frequency-doubling Nd:GdCOB lasers

Jiyang Wang, Huaijin Zhang, Zhengping Wang, Haohai Yu, Nan Zong, Changqin Ma, Zuyan Xu, and Minhua Jiang  »View Author Affiliations

Optics Express, Vol. 18, Issue 11, pp. 11058-11062 (2010)

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Laser-diode (LD) pumped self-frequency doubling (SFD) Nd:GdCa4O(BO3)3 (Nd:GdCOB) miniature laser was demonstrated. The output power as high as 1.35 W was achieved which is over than five times than previous values for Nd:LnCa4O(BO3)3 (Ln = Y or Gd) SFD lasers and becomes the highest continuous-wave output power in this field to our knowledge. The maximum optical conversion efficiency is 17%. By comparison, we found that the cutting direction along its optimal phase-matching direction out of the principal planes is the determining factor resulting in this watt-level efficient output power. Different with previous studies, the emission wavelength is centered at about 545 nm. We believed that this efficient laser will become the most competitive one in the existing commercial green lasers, especially in the laser display, medical treatment and spectroscopic analysis etc.

© 2010 OSA

OCIS Codes
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.5940) Nonlinear optics : Self-action effects

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 15, 2010
Revised Manuscript: April 20, 2010
Manuscript Accepted: May 7, 2010
Published: May 11, 2010

Virtual Issues
Vol. 5, Iss. 10 Virtual Journal for Biomedical Optics

Jiyang Wang, Huaijin Zhang, Zhengping Wang, Haohai Yu, Nan Zong, Changqin Ma, Zuyan Xu, and Minhua Jiang, "Watt-level self-frequency-doubling Nd:GdCOB lasers," Opt. Express 18, 11058-11062 (2010)

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