Parametric Photonic Channelized RF Receiver

Comput. & Electr. Eng., Univ. of California, La Jolla, CA, USA
IEEE Photonics Technology Letters (Impact Factor: 2.04). 04/2011; DOI: 10.1109/LPT.2011.2105470
Source: IEEE Xplore

ABSTRACT A new class of photonic channelized radio-frequency (RF) receiver is proposed and demonstrated. The new device relies on generation of high fidelity signal copies by wavelength multicasting in a self-seeded, two-pump parametric mixer. Signal copying to widely spaced wavelengths enables channelization of the full RF bandwidth using a single periodic filter. The channelization uses freely tunable frequencies of newly generated copies and eliminates the need for construction of a dense, narrowband filter bank. The new concept is demonstrated by channelization of four subcarrier channels with 1-GHz spacing and greater than 20-dB extinction ratio between extracted channels.

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