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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 30, Iss. 23 — Dec. 1, 2012
  • pp: 3672–3678

Photonic RF Phase Shifter Based on Optical Carrier and RF Modulation Sidebands Amplitude and Phase Control

Erwin H. W. Chan, WeiWei Zhang, and Robert A. Minasian

Journal of Lightwave Technology, Vol. 30, Issue 23, pp. 3672-3678 (2012)


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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°.

© 2012 IEEE

Citation
Erwin H. W. Chan, WeiWei Zhang, and Robert A. Minasian, "Photonic RF Phase Shifter Based on Optical Carrier and RF Modulation Sidebands Amplitude and Phase Control," J. Lightwave Technol. 30, 3672-3678 (2012)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-30-23-3672

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