Photonic measurement of microwave frequency based on phase modulation | Zendy

Junqiang Zhou | Zendy; Songnian Fu | Zendy; Perry Ping Shum | Zendy; Sheel Aditya | Zendy; Li Xia | Zendy; Jianqiang Li | Zendy; Xiaoqiang Sun | Zendy; Kun Xu | Zendy

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Photonic measurement of microwave frequency based on phase modulation

Author(s) -

Junqiang Zhou,

Songnian Fu,

Perry Ping Shum,

Sheel Aditya,

Li Xia,

Jianqiang Li,

Xiaoqiang Sun,

Kun Xu

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.007217

Subject(s) - optics , microwave , phase modulation , photonics , signal (programming language) , frequency modulation , optical carrier transmission rates , amplitude modulation , photodetector , optical fiber , physics , phase noise , materials science , radio frequency , telecommunications , radio over fiber , computer science , quantum mechanics , programming language

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.

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