Polarization-Dependent In-Line Mach-Zehnder Interferometer for Discrimination of Temperature and Ambient Index Sensitivities
- Title
- Polarization-Dependent In-Line Mach-Zehnder Interferometer for Discrimination of Temperature and Ambient Index Sensitivities
- Author
- 한영근
- Keywords
- Chemical sensors; fiber-optic sensors; index sensors; in-line Mach-Zehnder interferometer (MZI); simultaneous measurement; temperature sensors
- Issue Date
- 2012-04
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
- Citation
- JOURNAL OF LIGHTWAVE TECHNOLOGY, 30, 8, 1037-1041
- Abstract
- Polarization-dependent in-line Mach-Zehnder interferometer fabricated by using a polarization-maintaining fiber (PMF) depending on input polarization state is investigated for discrimination of temperature and ambient index. Interference is induced by inserting the PMF with a length of 1 cm between two conventional single mode fibers. A core-misalignment method is employed to induce the interference patterns, which strongly depend on two orthogonal polarization modes. The proposed in-line Mach-Zehnder interferometer has two different transmission characteristics with different temperature (0.115 and 0.097 nm/degrees C for x- and y-polarization modes, respectively) and refractive index sensitivities (46.7 and 36.7 nm/RIU for x- and y-polarization modes, respectively). Accordingly, it is possible to simultaneously measure temperature and ambient index changes.
- URI
- http://ieeexplore.ieee.org/document/6015509/http://hdl.handle.net/20.500.11754/37914
- ISSN
- 0733-8724
- DOI
- 10.1109/JLT.2011.2167597
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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