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
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Date Deposited:||11 Mar 2010|
|Last Modified:||21 Feb 2017 11:48|
|Further Information:||Google Scholar|
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