estimation of the coupling power parameter of fused coupled fibers
Fiber couplers are widely used in telecommunications and industry as passive splitting power devices. The effective power coupling and transmission from one fiber to another is mainly determined by both the coupling length and the coupling coefficient. The coupling length can be calculated direct...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
°c World Scientific Publishing Company
2008
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| Subjects: | |
| Online Access: | http://eprints.utm.my/5855/ http://eprints.utm.my/5855/4/TotoSaktioto2008_EstimationoftheCouplingPowerParameter.pdf |
| Summary: | Fiber couplers are widely used in telecommunications and industry as passive splitting
power devices. The effective power coupling and transmission from one fiber to another
is mainly determined by both the coupling length and the coupling coefficient. The
coupling length can be calculated directly but the coupling coefficient depends upon the
refractive index and the separation fiber axis. After the fusion processes of two SMF-
28er couplers, the refractive index is unknown due to a change in the radius of the fiber
(rcladd < 40 μm and rcore < 1.5 μm). The coupling coefficient range is obtained from a
distribution of the coupling ratio and compared with the empirical formula, which also
enables one to calculate the refractive index. In this experiment, the coupling coefficient
in the range of 0.6–0.9/mm is calculated as a function of the separation fiber axis and the
refractive index of the core and cladding. The result shows a good correlation between
experimental results and theoretical calculation.
Keywords: Single mode fiber; coupling ratio; coupling length; coupling coefficient; refractive
index. |
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