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Theoretical and experimental study of polarization characteristics of polarization maintaining fiber based on wavelength‐sweeping modulation
Author(s) -
Duan ZuoLiang,
Ren LiYong,
Zhang YaNi,
Wang HanYi,
Yao BaoLi,
Zhao Wei
Publication year - 2010
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25244
Subject(s) - extinction ratio , polarization (electrochemistry) , birefringence , optics , polarization maintaining optical fiber , wavelength , beat (acoustics) , optical fiber , physics , materials science , fiber optic sensor , chemistry
We analyze theoretically the polarization characteristics of polarization maintaining fiber and study the basic measurement principles of beat length and polarization extinction ratio of this kind of optical fiber.According to the dependence of the phase difference between two orthogonally polarized modes (denoted as HE 11 xand HE 11 y ) transmitted in the polarization maintaining fiber on the light wavelength, we propose the wavelength‐sweeping modulation method to measure the beat length and the model birefringence. Based on this technique, the beat length and polarization extinction ratio of the PANDA polarization maintaining fibers (PMFs) (provided by Yangtze Optical Fiber and Cable Company, Wuhan, China) were investigated in detail. Experimental results show good consistent with the theoretical ones. We find that this method shows high measurement precision with the advantages of clear measurement principle and easy to operate. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1466–1469, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25244