First order optical differentiator based on an FBG in transmission

Miguel A. Preciado*, Xuewen Shu, Paul Harper, Kate Sugden

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference publication

Abstract

Optical differentiators constitute a basic device for analog all-optical signal processing [1]. Fiber grating approaches, both fiber Bragg grating (FBG) and long period grating (LPG), constitute an attractive solution because of their low cost, low insertion losses, and full compatibility with fiber optic systems. A first order differentiator LPG approach was proposed and demonstrated in [2], but FBGs may be preferred in applications with a bandwidth up to few nm because of the extreme sensitivity of LPGs to environmental fluctuations [3]. Several FBG approaches have been proposed in [3-6], requiring one or more additional optical elements to create a first-order differentiator. A very simple, single optical element FBG approach was proposed in [7] for first order differentiation, applying the well-known logarithmic Hilbert transform relation of the amplitude and phase of an FBG in transmission [8]. Using this relationship in the design process, it was theoretically and numerically demonstrated that a single FBG in transmission can be designed to simultaneously approach the amplitude and phase of a first-order differentiator spectral response, without need of any additional elements.

Original languageEnglish
Title of host publication2013 Conference on Lasers and Electro-Optics Europe & International Quantum Electronics Conference
Place of PublicationPiscataway, NJ (US)
PublisherIEEE
Number of pages1
ISBN (Print)978-1-4799-0593-5, 978-1-4799-0594-2
DOIs
Publication statusPublished - 2013
Event2013 Conference on Lasers and Electro-Optics Europe / International Quantum Electronics Conference - Munich, Germany
Duration: 12 May 201316 May 2013

Conference

Conference2013 Conference on Lasers and Electro-Optics Europe / International Quantum Electronics Conference
Abbreviated titleCLEO EUROPE/IQEC 2013
CountryGermany
CityMunich
Period12/05/1316/05/13

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  • Research Output

    • 12 Conference contribution

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  • Cite this

    Preciado, M. A., Shu, X., Harper, P., & Sugden, K. (2013). First order optical differentiator based on an FBG in transmission. In 2013 Conference on Lasers and Electro-Optics Europe & International Quantum Electronics Conference [paper CI_P_3] IEEE. https://doi.org/10.1109/CLEOE-IQEC.2013.6801286