Microwave Photonic Phase Shifter Based on an Integrated Dual-polarization Dual-parallel Mach-Zehnder Modulator without Optical Filter

A frequency-doubled microwave photonic phase shifter (MPPS) without optical filter is proposed. The MPPS is based on an integrated dual-polarization dual-parallel Mach-Zehnder modulator (DP-DPMZM) and a polarization modulator (PolM). The DP-DPMZM with a 90° polarization rotator in one arm is used to...

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Bibliographic Details
Published inFiber and integrated optics Vol. 38; no. 4; pp. 208 - 217
Main Authors Guo, Zhentao, Ma, Jianxin, Huang, Shanguo, Gao, Xinlu
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 04.07.2019
Taylor & Francis Ltd
Subjects
Dual polarization (waves)
dual-parallel Mach-Zehnder modulator
Mach-Zehnder interferometers
microwave photonic phase shifter
Microwave photonics
Optical communication
Optical filters
Phase modulation
Phase shift
Phase shifters
Polarization
polarization modulator
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Summary:A frequency-doubled microwave photonic phase shifter (MPPS) without optical filter is proposed. The MPPS is based on an integrated dual-polarization dual-parallel Mach-Zehnder modulator (DP-DPMZM) and a polarization modulator (PolM). The DP-DPMZM with a 90° polarization rotator in one arm is used to generate an optical carrier suppressed double sideband (OCS-DSB) signal with orthogonal polarization, and the PolM with two modes opposite phase modulation is used to introduce the optical phase shift between the two orthogonally polarized tones. Simulations show that the MPPS can realize a continuously tunable phase shift of 360° with only one DC bias voltage, and is not sensitive to the optical carrier wavelength and microwave signal frequency since no optical filter is used.
ISSN:0146-8030
1096-4681
DOI:10.1080/01468030.2019.1617912