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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 24 — Dec. 15, 2013
  • pp: 5365–5368

Photonic generation of a phase-coded microwave signal based on a single dual-drive Mach–Zehnder modulator

Zhenzhou Tang, Tingting Zhang, Fangzheng Zhang, and Shilong Pan  »View Author Affiliations


Optics Letters, Vol. 38, Issue 24, pp. 5365-5368 (2013)
http://dx.doi.org/10.1364/OL.38.005365


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Abstract

A compact scheme for photonic generation of a phase-coded microwave signal using a dual-drive Mach–Zehnder modulator (DMZM) is proposed and experimentally demonstrated. In the proposed scheme, the radio frequency (RF) carrier and the coding signal are sent to the two RF ports of the DMZM, respectively. By properly setting the amplitude of the coding signal and the bias voltage of the DMZM, an exact π-phase-shift phase-coded microwave signal is generated. The proposed scheme has a simple structure since only a single DMZM is required. In addition, good frequency tunability is achieved because no frequency-dependent electrical devices or wavelength-dependent optical devices are applied. The feasibility of the proposed scheme is verified by experiment. 2 or 2.5Gb/s phase-coded 10 and 20 GHz microwave signals are successfully generated.

© 2013 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(350.4010) Other areas of optics : Microwaves

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: September 20, 2013
Revised Manuscript: November 8, 2013
Manuscript Accepted: November 11, 2013
Published: December 9, 2013

Citation
Zhenzhou Tang, Tingting Zhang, Fangzheng Zhang, and Shilong Pan, "Photonic generation of a phase-coded microwave signal based on a single dual-drive Mach–Zehnder modulator," Opt. Lett. 38, 5365-5368 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-24-5365

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