Backward second-harmonic and third-harmonic generation in a periodically poled potassium titanyl phosphate waveguide
Optics Letters, Vol. 24, Issue 3, pp. 127-129 (1999)
http://dx.doi.org/10.1364/OL.24.000127
Acrobat PDF (238 KB)
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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