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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 6, Iss. 3 — Mar. 1, 1989
  • pp: 313–328

Phase-matched periodic electric-field-induced second-harmonic generation in optical fibers

Raman Kashyap  »View Author Affiliations


JOSA B, Vol. 6, Issue 3, pp. 313-328 (1989)
http://dx.doi.org/10.1364/JOSAB.6.000313


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Abstract

Phase-matched electric-field-induced second-harmonic generation is demonstrated in single-mode germania-doped silica fibers. A periodic second-order nonlinearity is induced by a simple interdigitated electrode structure, which can be rotated to permit phase matching between all propagating modes. The most efficient mode interaction between HE11ω and HE112ω is achieved at 1.064 μm by using a Q-switched Nd+3:YAG laser. In principle, phase matching at any propagating wavelength is possible. This technique could be applied to planar as well as cylindrical waveguides and can be used with many non-χ(2) materials. The asymmetry in the applied electric field enhances the optical-field overlaps between modes of dissimilar orders, and this is also demonstrated. A conversion efficiency of 4.0 × 10−4% has been obtained in unoptimized devices. Device optimization is also discussed.

© 1989 Optical Society of America

History
Original Manuscript: July 5, 1988
Manuscript Accepted: October 28, 1988
Published: March 1, 1989

Citation
Raman Kashyap, "Phase-matched periodic electric-field-induced second-harmonic generation in optical fibers," J. Opt. Soc. Am. B 6, 313-328 (1989)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-6-3-313

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