Tunable photonic microwave filter using single-sideband modulation and a fiber grating in a Sagnac loop

G. X. Ning; Ping Shum; Sheel Aditya; Hui Dong; Yandong Gong; Chao Lu

doi:10.1117/1.2162042

1 January 2006 Tunable photonic microwave filter using single-sideband modulation and a fiber grating in a Sagnac loop

G. X. Ning, Ping Shum, Sheel Aditya, Hui Dong, Yandong Gong, Chao Lu

Author Affiliations +

Optical Engineering, Vol. 45, Issue 1, 015005 (January 2006). https://doi.org/10.1117/1.2162042

Abstract

We propose a novel, continuously tunable, photonic microwave notch filter configuration that uses, for the first time, single-sideband (SSB) modulated optical signals together with a linearly chirped fiber grating in a Sagnac loop. Measured results are presented to show a large notch rejection and an easily tunable free spectral range (FSR) by tuning the chirped fiber Bragg grating (FBG). The configuration enables doubling of time delay in the Sagnac loop. Use of SSB offers the potential to overcome chromatic dispersion.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

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G. X. Ning, Ping Shum, Sheel Aditya, Hui Dong, Yandong Gong, and Chao Lu "Tunable photonic microwave filter using single-sideband modulation and a fiber grating in a Sagnac loop," Optical Engineering 45(1), 015005 (1 January 2006). https://doi.org/10.1117/1.2162042

Published: 1 January 2006

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KEYWORDS

Single sideband modulation

Microwave radiation

Microwave photonics

Optical filters

Microwave photonic filters

Modulation

Photonic microstructures

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