Single-Mode Fiber-Optic Directional Couplers For Narrow Spectral Linewidth Analyser

M. I. Belovolov,; E. M. Dianov; A. P. Krjukov; V. H. Pencheva

doi:10.1117/12.942545

4 February 1988 Single-Mode Fiber-Optic Directional Couplers For Narrow Spectral Linewidth Analyser

M. I. Belovolov,, E. M. Dianov, A. P. Krjukov, V. H. Pencheva

Proceedings Volume 0839, Components for Fiber Optic Applications II; (1988) https://doi.org/10.1117/12.942545
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

Abstract

A new design of Y-type end-fused single-mode fiber directional couplers has been suggest ed, and its optimum parameters with which it is possible to obtain losses of 0,5-1 dB have been determined. Cross-talk attenuation between reverse channels exceeds 60 dB. It has been found by experiments that transmission coefficients of the developed couplers are stable at wavelength variations. Furthermore, Y-type directional couplers maintain polarization state of the propagating radiation. Simple Michelson interferometer based on Y-type fiber optic directional couplers with a new optical fringe visibility registration system for the narrow linewidth( ▵V) = 10 kHz - 1 MHz) analysis of the single-frequency lasers has been created.

Citation Download Citation

M. I. Belovolov,, E. M. Dianov, A. P. Krjukov, and V. H. Pencheva "Single-Mode Fiber-Optic Directional Couplers For Narrow Spectral Linewidth Analyser", Proc. SPIE 0839, Components for Fiber Optic Applications II, (4 February 1988); https://doi.org/10.1117/12.942545

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