Cascaded Single-Mode Fiber Optic Transversal Filters

C C. WANG

doi:10.1117/12.937450

23 February 1987 Cascaded Single-Mode Fiber Optic Transversal Filters

C C. WANG

Proceedings Volume 0716, High Frequency Optical Communications; (1987) https://doi.org/10.1117/12.937450
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States

Abstract

The implementation of optical fiber transversal filters incorporating single-mode fibers and bidirectional couplers using a cascade synthesis procedure is discussed. The filter structures fabricated by this method exhibit good filtering characteristics in a broad frequency region. Single cascaded filters with first passband center frequencies from few MHz to over 3 GHz and with quality factors over 250 have been demonstrated. Many single cascades can also be cascaded together to form a multicascaded structure for shifting the first passband to higher frequencies or for suppression of the out-of-band attenuation level. Multicascaded filters with more than 30 dB out-off-band attenuation level have been demonstrated. The cascade synthesis procedure is very simple and cost-effective.

Citation Download Citation

C C. WANG "Cascaded Single-Mode Fiber Optic Transversal Filters", Proc. SPIE 0716, High Frequency Optical Communications, (23 February 1987); https://doi.org/10.1117/12.937450

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