Analysis of single-mode fused tapered fibre couplers

de Fornel, F., Ragdale, C.M. and Mears, R.J. (1984) Analysis of single-mode fused tapered fibre couplers IEE Proceedings H Microwaves Antennas and Propagation, 131, (4), pp. 221-28.


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A fabrication technique for fused taper couplers is described. Coupling coefficients are calculated for fibres with raised, depressed and matched refractive-index profiles, and optimum V-values for coupling are found. These suggest a shorter coupler geometry differing from the biconical taper. The high taper loss in depressed cladding fibres is shown to correspond to the presence of the leaky LP-mode. The wavelength response has been measured for various couplers and fitted theoretically. Coupling periods as small as 12 nm demonstrate potential use for couplers as wavelength-division multiplexers. The dependence of coupling on the refractive index of the surrounding medium has been measured. Thus couplers have also demonstrated potential as temperature sensors and optical switches

Item Type: Article
ISSNs: 0950-107X (print)
Related URLs:
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
ePrint ID: 77687
Date :
Date Event
August 1984Published
Date Deposited: 11 Mar 2010
Last Modified: 18 Apr 2017 20:28
Further Information:Google Scholar

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