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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 21 — Nov. 1, 2010
  • pp: 3616–3618

Ti:sapphire laser intracavity difference-frequency generation of 30 mW cw radiation around 4.5 μm

I. Galli, S. Bartalini, S. Borri, P. Cancio, G. Giusfredi, D. Mazzotti, and P. De Natale  »View Author Affiliations


Optics Letters, Vol. 35, Issue 21, pp. 3616-3618 (2010)
http://dx.doi.org/10.1364/OL.35.003616


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Abstract

A cw mid-IR coherent source based on difference-frequency generation is designed and characterized. For mid-IR generation, a periodically poled MgO : LiNbO 3 crystal is placed inside a compact Ti:sapphire laser cavity. This provides high-power pump radiation for the nonlinear process. Optical injection by an external-cavity diode laser ensures single-frequency operation of the Ti:sapphire laser, while signal radiation is provided by a fiber-amplified Nd:YAG laser. Mid-IR radiation can be generated with 3850 4540 nm tuning range, narrow linewidth, Cs-standard traceability, and TEM 00 spatial mode. 30 mW power is obtained at 4510 nm .

© 2010 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3520) Lasers and laser optics : Lasers, injection-locked
(140.3590) Lasers and laser optics : Lasers, titanium
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: July 9, 2010
Revised Manuscript: August 26, 2010
Manuscript Accepted: September 24, 2010
Published: October 21, 2010

Citation
I. Galli, S. Bartalini, S. Borri, P. Cancio, G. Giusfredi, D. Mazzotti, and P. De Natale, "Ti:sapphire laser intracavity difference-frequency generation of 30 mW cw radiation around 4.5μm," Opt. Lett. 35, 3616-3618 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-21-3616


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