Title :
Detecting Low-Power RF Signals Using a Multimode Optoelectronic Oscillator and Integrated Optical Filter
Author :
Devgan, Preetpaul S. ; Pruessner, Marcel W. ; Urick, Vincent J. ; Williams, Keith J.
Author_Institution :
U.S. Naval Res. Lab., Washington, DC, USA
Abstract :
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.
Keywords :
elemental semiconductors; integrated optics; integrated optoelectronics; microwave photonics; optical filters; optical sensors; signal detection; silicon; RF signal amplification; channelization; compression dynamic range; frequency 1 GHz to 6 GHz; integrated silicon optical filter; low-power RF signal detection; multimode optoelectronic oscillator; Channelization; optoelectronic oscillator (OEO); silicon integrated optical filters;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2037154
