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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 24, Iss. 3 — Feb. 1, 1999
  • pp: 127–129

Backward second-harmonic and third-harmonic generation in a periodically poled potassium titanyl phosphate waveguide

Xinhua Gu, Maxim Makarov, Yujie J. Ding, Jacob B. Khurgin, and William P. Risk  »View Author Affiliations


Optics Letters, Vol. 24, Issue 3, pp. 127-129 (1999)
http://dx.doi.org/10.1364/OL.24.000127


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Abstract

We observed backward second-harmonic and backward third-harmonic generation in a periodically poled KTiOPO4 waveguide using nanosecond laser pulses. The highest conversion efficiency achieved for the backward second-harmonic generation, occurring at the 25th-order grating, was ~0.6% . The backward third-harmonic generation was the result of mixing the pump beam with the forward or the backward second-harmonic beam. Conversion efficiency of ~0.4% was achieved at a pump wavelength of 1233.7 nm, where the two constituent nonlinear processes are both quasi-phase matched.

© 1999 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(230.7370) Optical devices : Waveguides

Citation
Xinhua Gu, Maxim Makarov, Yujie J. Ding, Jacob B. Khurgin, and William P. Risk, "Backward second-harmonic and third-harmonic generation in a periodically poled potassium titanyl phosphate waveguide," Opt. Lett. 24, 127-129 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-3-127

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