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Engineering of effective second-order nonlinearity in uniform and chirped gratings |
JOSA B, Vol. 29, Issue 10, pp. 2929-2934 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002929
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Abstract
The dependence of second harmonic generation conversion efficiency resulting from the position of poled regions of the second-order nonlinearity in uniform and chirped gratings in ferroelectric materials has been studied analytically and numerically. The displacement of the poled region’s position from a specific location in second-order nonlinear materials can introduce a wavelength shift in a uniform grating’s second harmonic intensity peak and strongly influences the bandwidth and ripple in the harmonic conversion response of chirped gratings. We propose that the poled regions should be located at specific positions within the single period to minimize the ripples and achieve a desired nonlinearity function, and also to significantly improve tolerance to fabrication errors.
© 2012 Optical Society of America
OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4360) Nonlinear optics : Nonlinear optics, devices
ToC Category:
Nonlinear Optics
History
Original Manuscript: July 3, 2012
Revised Manuscript: August 30, 2012
Manuscript Accepted: September 1, 2012
Published: September 27, 2012
Citation
Ameneh Bostani, Amirhossein Tehranchi, and Raman Kashyap, "Engineering of effective second-order nonlinearity in uniform and chirped gratings," J. Opt. Soc. Am. B 29, 2929-2934 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-10-2929
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