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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 1 — Jan. 1, 2012
  • pp: 15–20

Single-frequency, high-power, continuous-wave fiber-laser-pumped Ti:sapphire laser

Suddapalli Chaitanya Kumar, Goutam Kumar Samanta, Kavita Devi, Stefano Sanguinetti, and Majid Ebrahim-Zadeh  »View Author Affiliations


Applied Optics, Vol. 51, Issue 1, pp. 15-20 (2012)
http://dx.doi.org/10.1364/AO.51.000015


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Abstract

We demonstrate a high-power, continuous-wave (cw), single-frequency green source based on single-pass second-harmonic generation of a Yb-fiber laser in MgO:sPPLT as a viable pump source for a cw single-frequency Ti:sapphire ring laser. By careful design and optimization, the Ti:sapphire laser can provide as much as 2.3 W of cw single-frequency output across a 47 nm tuning range, limited by the reflectivity of the cavity mirrors. By implementing active stabilization of the laser frequency to an external reference, an ultrastable Fabry–Perot interferometer, we obtain a frequency stability better than 12 MHz over 10 min and continuous tunability greater than 180 MHz. Stable output power with peak-to-peak fluctuation of 5.4% over 75 min, in high spatial beam quality with M2<1.34, is achieved.

© 2012 Optical Society of America

OCIS Codes
(140.3590) Lasers and laser optics : Lasers, titanium
(140.7300) Lasers and laser optics : Visible lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: October 10, 2011
Manuscript Accepted: November 10, 2011
Published: December 22, 2011

Citation
Suddapalli Chaitanya Kumar, Goutam Kumar Samanta, Kavita Devi, Stefano Sanguinetti, and Majid Ebrahim-Zadeh, "Single-frequency, high-power, continuous-wave fiber-laser-pumped Ti:sapphire laser," Appl. Opt. 51, 15-20 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-1-15

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