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Estimation of coupling parameters for auto-motorized fabrication of fused fiber coupler

Irawan, Dedi and Saktioto, Saktioto and Ali, Jalil and Fadhali, Mohamed and Erwin, Erwin (2012) Estimation of coupling parameters for auto-motorized fabrication of fused fiber coupler. Microwave and Optical Technology Letters, 54 (8). pp. 1932-1935. ISSN 0895-2477

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Official URL: http://dx.doi.org/10.1002/mop.26937

Abstract

A directional fiber coupler with exertion loss 0.03 dB has been successfully fabricated using fusion technique with typical coupling ratio 1–90%. The coupling region of two twisted single mode fiber is heated by injecting hydrogen gas at 2.5 bar. During fusion process, both two sides of fibers are pulled by stages that are automatically motorized in range of 800–4800 µm, and stopped when the desired coupling ratio is reached. The parameters of automated mechanical motion of pulling stages and coupling parameters at fusion region have been calculated by using kinetic model. The effect of heating and elongation reduces the diameter of cross section tapered region with a diameter 6.35 micrometer scale. As the fabrication of fiber couplers described by degree of fusion, which is function of heating and pulling length, it can be seen clearly that the coupling coefficient between the fibers increases exponentially with increasing the degree of fusion. However, by knowing coupling power and mechanical motion parameters, the fabrication of directional fiber coupler can be optimized.

Item Type:Article
Uncontrolled Keywords:directional fiber coupler, pulling length
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:33526
Deposited By: Fazli Masari
Deposited On:28 Aug 2013 09:33
Last Modified:30 Nov 2018 14:37

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