A new type of frequency tuning for stimulated four-photon mixing is demonstrated using bending-induced birefringence in a single-mode fiber. It is experimentally verified that the frequency shift of the Stokes emission is tuned by approximately 100 cm−1 via the bending-induced birefringence in the spectral region around 1 μm. This will provide a new application of a birefringent fiber to a optical frequency generator.
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Kitayama et al. (1982) studied this question.
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