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Detecting Low-Power RF Signals Using a Multimode Optoelectronic Oscillator and Integrated Optical Filter

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4 Author(s)
Devgan, P.S. ; U.S. Naval Res. Lab., Washington, DC, USA ; Pruessner, M.W. ; Urick, V.J. ; Williams, K.J.

We have assembled and characterized a multimode optoelectronic oscillator with integrated optical filter for detecting low-power radio-frequency (RF) signals. The system can selectively amplify RF signals from 1 to 6 GHz. The input signals can be as low as - 83 dBm with a compression dynamic range of 72 dB. Using an integrated silicon optical filter facilitates channelization of the amplified RF signal from 1 to 3 GHz by reducing the gain for signals above 3 GHz. Future system improvements are discussed.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 3 )