Title :
A photonic technique for microwave frequency measurement employing tunable dispersive medium
Author :
Hu, Shu ; Han, Xiuyou ; Wu, Pengsheng ; Gu, Yiying ; Zhao, Mingshan
Author_Institution :
Sch. of Phys. & Optoelectron. Eng., Dalian Univ. of Technol., Dalian, China
Abstract :
We propose a novel photonic technique for microwave frequency measurement by employing an optical group delay line. The 7-bit optical delay line composed of several magneto-optical switches and 1.6km single-mode fiber (SMF) is designed as a tunable dispersive medium (TDM) in the measurement system. In our scheme, the measurable frequency range of 1-20GHz with a measurement error less than ± 40MHz is demonstrated experimentally. Also, we have studied the dynamic range of the measurement system.
Keywords :
frequency measurement; magneto-optical devices; microwave measurement; microwave photonics; optical delay lines; optical fibres; photonic switching systems; SMF; TDM; distance 1.6 km; frequency 1 GHz to 20 GHz; magnetooptical switch; measurement error; microwave frequency measurement; optical group delay line; photonic technique; single-mode fiber; tunable dispersive medium; word length 7 bit; Frequency measurement; Microwave measurements; Optical fibers; Optical switches; Optical variables measurement; Power measurement; Microwave frequency measurement; microwave photonics; optical delay line; tunable dispersive medium;
Conference_Titel :
Microwave Photonics, 2011 International Topical Meeting on & Microwave Photonics Conference, 2011 Asia-Pacific, MWP/APMP
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-716-0
DOI :
10.1109/MWP.2011.6088695
