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Birefringence variation with temperature in elliptically cladded single-mode fibers
Applied Optics
|April 20, 2010
Summary
A new nondestructive method measures beat length in stress-induced birefringent fibers. Beat length increases linearly with temperature, allowing prediction of zero birefringence points.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Stress-induced birefringence in optical fibers affects signal transmission.
- Accurate measurement of fiber properties is crucial for telecommunications.
Purpose of the Study:
- To introduce a nondestructive method for measuring beat length in stress-induced birefringent fibers.
- To investigate the relationship between beat length and temperature in elliptically cladded fibers.
- To determine the temperature at which stress-induced birefringence is absent.
Main Methods:
- Utilized a nondestructive optical method for beat length measurement.
- Employed a 1.3-micrometer wavelength for experiments.
- Investigated elliptically cladded fibers under varying temperatures.
Main Results:
- The beat length of stress-induced birefringent fibers exhibits a near-linear increase with temperature around room temperature.
- Phase retardation in these fibers demonstrates a linear correlation with temperature.
- Identified specific temperatures where stress-induced birefringence is eliminated.
Conclusions:
- The developed method provides an effective way to characterize stress-induced birefringence.
- Temperature significantly influences beat length and phase retardation in birefringent fibers.
- The findings are valuable for designing and operating optical fiber systems in variable thermal environments.
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