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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 3958–3961

Photonic generation of widely tunable phase-coded microwave signals based on a dual-parallel polarization modulator

Shifeng Liu, Dan Zhu, Zhengwu Wei, and Shilong Pan  »View Author Affiliations


Optics Letters, Vol. 39, Issue 13, pp. 3958-3961 (2014)
http://dx.doi.org/10.1364/OL.39.003958


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Abstract

A photonic approach for the generation of a widely tunable arbitrarily phase-coded microwave signal based on a dual-parallel polarization modulator (DP-PolM) is proposed and demonstrated without using any optical or electrical filter. Two orthogonally polarized ± first-order optical sidebands with suppressed carrier are generated based on the DP-PolM, and their polarization directions are aligned with the two principal axes of the following PolM. Phase coding is implemented at a following PolM driven by an electrical coding signal. The inherent frequency-doubling operation can make the system work at a frequency beyond the operation bandwidth of the DP-PolM and the 90° hybrid. Because no optical or electrical filter is applied, good frequency tunability is realized. An experiment is performed. The generation of phase-coded signals tuning from 10 to 40 GHz with up to 10Gbit/s coding rates is verified.

© 2014 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 31, 2014
Revised Manuscript: May 22, 2014
Manuscript Accepted: May 22, 2014
Published: June 26, 2014

Citation
Shifeng Liu, Dan Zhu, Zhengwu Wei, and Shilong Pan, "Photonic generation of widely tunable phase-coded microwave signals based on a dual-parallel polarization modulator," Opt. Lett. 39, 3958-3961 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-13-3958

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