期刊
OPTICS EXPRESS
卷 19, 期 10, 页码 9392-9400出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.009392
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资金
- Korea Science and Engineering Foundation (KOSEF) [2009-0079553]
- World Class University through the National Research Foundation of Korea, Ministry of Education, Science and Technology, Korea [R31-2008-000-20004-0]
- National Research Foundation of Korea [과C6B1614] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Various functional optical devices are integrated on a single chip in order to construct optical current transducers based on polarization rotated reflection interferometry, which consists of polarization maintaining 3-dB couplers, TE-pass polarizers, TE/TM polarization converters, and thermo-optic phase modulators. By virtue of the device integration, the sensor exhibited good linearity, and excellent accuracy with an error less than 0.2%. The integrated-optic device provides inherent polarization maintaining characteristics and precise controllability of the optical path length in the interferometric sensor. Single chip integration reduces the complexity of the interferometry, and enables mass-production of low-cost high performance current sensors. (C) 2011 Optical Society of America
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