Photonic RF phase shifter based on optical carrier and RF modulation sidebands amplitude and phase control

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

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A new photonic microwave phase shifter that can achieve a full 360° phase shift with very little RF signal amplitude variation, and which can operate over very wide frequency range, is presented. It is based on controlling the amplitude and phase of the optical carrier and the two RF modulation sidebands via the dc bias voltages to a dual-parallel Mach-Zehnder modulator (DPMZM). It has a simple structure, only requiring a single laser, modulator, and photodetector. A continuous 360° RF phase shift without changes in the RF signal amplitude is obtained by controlling the dc bias voltages of the DPMZM. Experimental results demonstrate a very wideband operation of the RF phase shifter over an 8:1 frequency range from 2 to 16 GHz, a continuous 0-360° RF phase shift with very low amplitude variation of <3 dB of over the entire frequency band, and with a phase deviation standard deviation of <2°. 
Original languageEnglish
Pages (from-to)3672-3678
Number of pages7
JournalJournal of Lightwave Technology
Volume30
Issue number23
DOIs
Publication statusPublished - 1 Dec 2012
Externally publishedYes

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phase control
sidebands
photonics
modulation
modulators
phase shift
frequency ranges
phase deviation
electric potential
photometers
standard deviation
broadband
microwaves
lasers

Cite this

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title = "Photonic RF phase shifter based on optical carrier and RF modulation sidebands amplitude and phase control",
abstract = "A new photonic microwave phase shifter that can achieve a full 360° phase shift with very little RF signal amplitude variation, and which can operate over very wide frequency range, is presented. It is based on controlling the amplitude and phase of the optical carrier and the two RF modulation sidebands via the dc bias voltages to a dual-parallel Mach-Zehnder modulator (DPMZM). It has a simple structure, only requiring a single laser, modulator, and photodetector. A continuous 360° RF phase shift without changes in the RF signal amplitude is obtained by controlling the dc bias voltages of the DPMZM. Experimental results demonstrate a very wideband operation of the RF phase shifter over an 8:1 frequency range from 2 to 16 GHz, a continuous 0-360° RF phase shift with very low amplitude variation of <3 dB of over the entire frequency band, and with a phase deviation standard deviation of <2°. ",
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author = "E.H.W. Chan and W. Zhang and R.A. Minasian",
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Photonic RF phase shifter based on optical carrier and RF modulation sidebands amplitude and phase control. / Chan, E.H.W.; Zhang, W.; Minasian, R.A.

In: Journal of Lightwave Technology, Vol. 30, No. 23, 01.12.2012, p. 3672-3678.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Chan, E.H.W.

AU - Zhang, W.

AU - Minasian, R.A.

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AB - A new photonic microwave phase shifter that can achieve a full 360° phase shift with very little RF signal amplitude variation, and which can operate over very wide frequency range, is presented. It is based on controlling the amplitude and phase of the optical carrier and the two RF modulation sidebands via the dc bias voltages to a dual-parallel Mach-Zehnder modulator (DPMZM). It has a simple structure, only requiring a single laser, modulator, and photodetector. A continuous 360° RF phase shift without changes in the RF signal amplitude is obtained by controlling the dc bias voltages of the DPMZM. Experimental results demonstrate a very wideband operation of the RF phase shifter over an 8:1 frequency range from 2 to 16 GHz, a continuous 0-360° RF phase shift with very low amplitude variation of <3 dB of over the entire frequency band, and with a phase deviation standard deviation of <2°. 

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