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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 26 — Sep. 10, 2005
  • pp: 5561–5564

Broadening of the second-harmonic phase-matching bandwidth in type II periodically poled KTP

Rui Wu, Yuping Chen, Junfeng Zhang, Xianfeng Chen, and Yuxing Xia  »View Author Affiliations


Applied Optics, Vol. 44, Issue 26, pp. 5561-5564 (2005)
http://dx.doi.org/10.1364/AO.44.005561


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Abstract

We have theoretically demonstrated type II broadband second-harmonic generation (SHG) based on a quasi-phase-matching (QPM) configuration in periodically poled KTP (PPKTP). The wavelength dependence of QPM grating periods at different temperatures of 5 °C, 25 °C, and 45 °C is calculated with the crystal length of 1 cm. We find a very wide bandwidth, as large as 42.6 nm, of fundamental wavelength of 1.58 μm at the telecommunication band with the QPM period of 48.9 μm at 25 °C. The corresponding bandwidths of incident angle and temperature are found to be 4.24° and 14.8 °C, respectively. The comparison among PPKTP, periodically poled lithium niobate (PPLN), and MgO:PPLN reveals the unique performance of PPKTP in the broadband SHG.

© 2005 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials

History
Original Manuscript: October 4, 2004
Revised Manuscript: January 26, 2005
Manuscript Accepted: February 10, 2005
Published: September 10, 2005

Citation
Rui Wu, Yuping Chen, Junfeng Zhang, Xianfeng Chen, and Yuxing Xia, "Broadening of the second-harmonic phase-matching bandwidth in type II periodically poled KTP," Appl. Opt. 44, 5561-5564 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-26-5561


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References

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