Journal
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Volume 52, Issue 7, Pages 1466-1469Publisher
WILEY-BLACKWELL
DOI: 10.1002/mop.25244
Keywords
polarization maintaining fiber; birefringence; beat length; polarization extinction ratio
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Funding
- National Natural Science Foundation of China [60778020]
- Chinese Academy of Sciences
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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 Os HE11x and HE11y) 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 hew 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
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