Polarization-dependent and intensity-dependent phase mismatch of second-harmonic generation in optical fibers
- 1 September 1989
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 14 (17), 964-966
- https://doi.org/10.1364/ol.14.000964
Abstract
The second-harmonic dependence on the input fundamental light has been measured in optical fibers having a chi((2)) induced by seeding. The results are explained with a model that includes self-phase and cross-phase modulation in the equations governing second-harmonic generation and seeding. This leads to an intensity-dependent phase mismatch whose strength also depends on the relative polarizations of the fundamental and second-harmonic lights. During seeding, the same effects result in a chi((2)) grating detuned from exact phase matching.Keywords
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