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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 9 — Apr. 27, 2009
  • pp: 7217–7221

Photonic measurement of microwave frequency based on phase modulation

Junqiang Zhou, Songnian Fu, Perry Ping Shum, Sheel Aditya, Li Xia, Jianqiang Li, Xiaoqiang Sun, and Kun Xu  »View Author Affiliations

Optics Express, Vol. 17, Issue 9, pp. 7217-7221 (2009)

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A photonic approach for microwave frequency measurement is proposed. In this approach, an optical carrier is modulated by an unknown microwave signal through a phase modulator. The modulated optical signal is then split into two parts; one part passes through a spool of polarization maintaining fiber (PMF) and the other one, through a dispersion compensation fiber (DCF), to introduce different microwave power penalties. After the microwave powers of the two parts are measured by two photodetectors, a fixed frequency-to-power mapping is established by obtaining an amplitude comparison function (ACF). A proof-of-concept experiment demonstrates frequency measurement over a range of 10.5 GHz, with measurement error less than ±0.07 GHz.

© 2009 Optical Society of America

OCIS Codes
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(280.4750) Remote sensing and sensors : Optical processing of radar images
(350.4010) Other areas of optics : Microwaves
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 9, 2009
Revised Manuscript: March 6, 2009
Manuscript Accepted: March 9, 2009
Published: April 16, 2009

Junqiang Zhou, Songnian Fu, Perry Ping Shum, Sheel Aditya, Li Xia, Jianqiang Li, Xiaoqiang Sun, and Kun Xu, "Photonic measurement of microwave frequency based on phase modulation," Opt. Express 17, 7217-7221 (2009)

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