Phase measurement in frequency-doubling fibers
- 1 July 1989
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 14 (13), 700-702
- https://doi.org/10.1364/ol.14.000700
Abstract
Fibers were prepared for second-harmonic generation by injecting a frequency-doubled (seed) signal with the fundamental light from a Nd:YAG laser. The relative phase shift between the seed and the second-harmonic light generated by the fiber was measured to be close to 90° (≃99 ± 9.2°). A water cell was used to sweep the relative phase of the waves with interferometric precision. Some physical consequences of a π/2 phase shift are pointed out.Keywords
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