Design of fiber optic IIR filters for processing lightwave signals

Anjan K. Ghosh; Steve N. Frank

doi:10.1117/12.23439

27 December 1990 Design of fiber optic IIR filters for processing lightwave signals

Anjan K. Ghosh, Steve N. Frank

Proceedings Volume 1347, Optical Information Processing Systems and Architectures II; (1990) https://doi.org/10.1117/12.23439
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

Realization of direct forms infinite-impulse response digital filters using various radiatively-tappered fiber optic delay lines is discussed. Such filters are attractive because they can provide better magnitude characteristics in their frequency response for a smaller number of taps than finite-impulse response filters can. These realizations use spatial light modulators and thus can be incorporated into optical adaptive filters for processing lightwave signals. Models of error sources in the fiber optical realization and their effects on both time and frequency response characteristics are explained. Cascading of lower order subsystems to obtain higher order filters is discussed. A possible way of improving the insertion loss using Erbium doped fiber optic amplifiers is derived.

Citation Download Citation

Anjan K. Ghosh and Steve N. Frank "Design of fiber optic IIR filters for processing lightwave signals", Proc. SPIE 1347, Optical Information Processing Systems and Architectures II, (27 December 1990); https://doi.org/10.1117/12.23439

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