Spectrum and correlation processing of fluctuating phases of guided modes in a perturbed PANDA fiber

Satoshi Tanaka; Kazuhiko Oka; Yoshihiro Ohtsuka

doi:10.1117/12.22234

1 July 1990 Spectrum and correlation processing of fluctuating phases of guided modes in a perturbed PANDA fiber

Satoshi Tanaka, Kazuhiko Oka, Yoshihiro Ohtsuka

Proceedings Volume 1319, Optics in Complex Systems; (1990) https://doi.org/10.1117/12.22234
Event: 15th International Optics in Complex Systems, 1990, Garmisch, Germany

Abstract

Statistical studies are made of the phase fluctuations of all the guided modes including cross-coupled modes, propagating in a highly birefringent PANDA fiber. The fluctuating phases are demodulated from the generated beat-photocurrents and processed to give their cross-power spectra. For the dynamic sensing by a fiber-optic sensor, it is essential to clarify the dynamic propagation characteristics of all the guided modes in the presence of environmental perturbations. The present work is amid at studying statistics for the phase fluctuations of the modes guided in the fiber under lateral forced vibrations. One of the guided modes, as a signal beam, is mixed with a local oscillator beam to generate a beat-photocurrent from which the fluctuating phases can be demodulated and processed statistically.

Citation Download Citation

Satoshi Tanaka, Kazuhiko Oka, and Yoshihiro Ohtsuka "Spectrum and correlation processing of fluctuating phases of guided modes in a perturbed PANDA fiber", Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); https://doi.org/10.1117/12.22234

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