Paper
5 October 2005 Frequency domain analysis of fiber bragg grating based phase modulation to intensity modulation conversion
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Abstract
In this paper, optical phase modulation to intensity modulation by the use of a fiber Bragg grating (FBG) based frequency discriminator is proposed and experimentally demonstrated. In the proposed approach, the optical carrier frequency is placed at the quadrature point of the positive or negative slope of the reflection response of the FBG. The phase modulated light reflected from the two opposite slopes will have a π phase difference, which makes bipolar operation possible in an all-optical microwave signal processor or an optical code division multiple-access system. Both the frequency and phase responses of the FBG are taken into account to build a theoretical model in a frequency domain. Phase modulation to intensity modulation conversion based on a Gaussian apodized FBG is experimentally implemented. The results confirm the theoretical analysis.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fei Zeng and Jianping Yao "Frequency domain analysis of fiber bragg grating based phase modulation to intensity modulation conversion", Proc. SPIE 5971, Photonic Applications in Nonlinear Optics, Nanophotonics, and Microwave Photonics, 59712B (5 October 2005); https://doi.org/10.1117/12.628628
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Cited by 20 scholarly publications and 3 patents.
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KEYWORDS
Fiber Bragg gratings

Modulation

Phase modulation

Signal detection

Phase shift keying

Reflectivity

Apodization

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