Photonic RF phase shifter and tunable photonic RF notch filter

E.H.W. Chan, R.A. Minasian

Research output: Contribution to journalArticleResearchpeer-review

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.
Original languageEnglish
Pages (from-to)2676-2682
Number of pages7
JournalJournal of Lightwave Technology
Volume24
Issue number7
DOIs
Publication statusPublished - Jul 2006
Externally publishedYes

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notches
tuning
photonics
filters
attenuators
phased arrays
predictions
modulators
phase shift
switches
antennas
bandwidth
output

Cite this

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title = "Photonic RF phase shifter and tunable photonic RF notch filter",
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. {\circledC} 2006 IEEE.",
keywords = "Light modulators, Notch filters, Optical communication, Optical switches, Phase shifters, Optical signal processing, Phased array radar, Tunable filters, Light transmission",
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Photonic RF phase shifter and tunable photonic RF notch filter. / Chan, E.H.W.; Minasian, R.A.

In: Journal of Lightwave Technology, Vol. 24, No. 7, 07.2006, p. 2676-2682.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Photonic RF phase shifter and tunable photonic RF notch filter

AU - Chan, E.H.W.

AU - Minasian, R.A.

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AB - 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.

KW - Light modulators

KW - Notch filters

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