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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 24, Iss. 7 — Jul. 1, 2006
  • pp: 2676–

Photonic RF Phase Shifter and Tunable Photonic RF Notch Filter

Erwin H. W. Chan and Robert A. Minasian

Journal of Lightwave Technology, Vol. 24, Issue 7, pp. 2676- (2006)


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Abstract

A new photonic RF phase shifter structure for phased array antennas is presented. It is based on a single dual-output modulator and two optical switches and optical attenuators. This can realize continuous phase shifting of 0°-360° without altering the signal amplitude. It has the advantages of wide bandwidth, fast response time, and fine tuning resolution. Experimental results demonstrate phase shifts over a 360° phase range, with RF signal power changes of less than 0.2 dB, which is in close agreement with predictions. A tunable photonic RF notch filter, which is based on the new phase shifter, is also presented. Experimental results demonstrate continuous tuning of the photonic notch filter over a wide tuning range, which covers the full free spectral range, which is in good agreement with predictions.

© 2006 IEEE

Citation
Erwin H. W. Chan and Robert A. Minasian, "Photonic RF Phase Shifter and Tunable Photonic RF Notch Filter," J. Lightwave Technol. 24, 2676- (2006)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-24-7-2676

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