Microwave photonic notch filter with an electro-absorption modulator in a Sagnac fiber loop

GuoXiang Ning; Ping Shum; Junqiang Zhou; Y. D. Gong

doi:10.1117/1.2835460

1 January 2008 Microwave photonic notch filter with an electro-absorption modulator in a Sagnac fiber loop

GuoXiang Ning, Ping Shum, Junqiang Zhou, Y. D. Gong

Author Affiliations +

Optical Engineering, Vol. 47, Issue 1, 018201 (January 2008). https://doi.org/10.1117/1.2835460

Abstract

Coherence-free microwave photonic filter configurations are presented. The configurations are based on a Sagnac loop interferometer containing an electro-absorption modulator (EAM) without a nonreciprocal bias unit. Notch responses are obtained by modulating the clockwise and counterclockwise propagating waves inside the Sagnac loop at different times. Measured results verify the theoretical expressions and demonstrate a robust notch filter response extending to high frequency without reducing notch depth.

©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

GuoXiang Ning, Ping Shum, Junqiang Zhou, and Y. D. Gong "Microwave photonic notch filter with an electro-absorption modulator in a Sagnac fiber loop," Optical Engineering 47(1), 018201 (1 January 2008). https://doi.org/10.1117/1.2835460

Published: 1 January 2008

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KEYWORDS

Linear filtering

Modulators

Laser sources

Signal detection

Modulation

Microwave photonic filters

Microwave photonics

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