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Optical Engineering

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

Paper Details

Date Published: 1 January 2006
PDF: 4 pages
Opt. Eng. 45(1) 015005 doi: 10.1117/1.2162042
Published in: Optical Engineering Volume 45, Issue 1
Show Author Affiliations
G. X. Ning, Nanyang Technological Univ. (Singapore)
Ping Shum, Nanyang Technological Univ. (Singapore)
Sheel Aditya, Nanyang Technological Univ. (Singapore)
Hui Dong, Nanyang Technological Univ. (Singapore)
Yandong Gong, Institute for Infocomm Research (Singapore)
Chao Lu, Institute for Infocomm Research (Singapore)

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