All-Optical Electrical Chirped Pulse Generation with Tunable Chirp Rate based on a Nonlinearly Chirped Fiber Bragg Grating

Wang, Chao and Yao, Jianping (2007) All-Optical Electrical Chirped Pulse Generation with Tunable Chirp Rate based on a Nonlinearly Chirped Fiber Bragg Grating. In: Microwave Photonics, 2007 Interntional Topical Meeting on. pp. 202-205. ISBN 9781424411672. E-ISBN 9781424411689. (doi:https://doi.org/10.1109/MWP.2007.4378173) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1109/MWP.2007.4378173

Abstract

In this paper, a novel approach to optically generating chirped electrical pulses with tunable chirp rate using a tunable nonlinearly chirped fiber Bragg grating (NL-CFBG) is proposed and analyzed. In the approach, a femtosecond pulse is spectrally filtered by two tunable optical filters, with the two filtered pulses applied to the NL-CFBG, to introduce different dispersions. The chirped optical pulses are then applied to a high-speed photodetector (PD). The beating of the two optical pulses leads to the generation of a linearly chirped electrical pulse with a tunable chirp rate by tuning the center wavelength of one of the tunable optical filter. The NL-CFBG used in the proposed system is produced using a new technique based on strain-gradient beam tuning. A mathematical model to describe the chirped electrical pulse generation is developed, which is verified by numerical simulations.

Item Type: Conference or workshop item (Paper)
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Tina Thompson
Date Deposited: 02 Dec 2013 16:02 UTC
Last Modified: 01 May 2014 08:17 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/37124 (The current URI for this page, for reference purposes)
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