Photonic scanning receiver using an electrically tuned fiber Bragg grating.

Department of Fiber Photonics, Acreo AB, Electrum 229, 164 40 Stockholm, Sweden.
Optics Letters (Impact Factor: 3.18). 12/2009; 34(24):3794-6. DOI: 10.1364/OL.34.003794
Source: PubMed

ABSTRACT A 5-cm-long electrically tuned fiber Bragg grating is used to filter a microwave signal on an optical carrier at 1.55 mum. A chirped distributed-feedback structure is employed, with a transmission bandwidth of 54 MHz and relative optical carrier rejection of >30 dB for rf frequencies >2 GHz. The rapid monotonic sweep of the Bragg wavelength is translated into a fast-frequency sweep for rf analysis.

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