Patent
1987-05-21
1989-04-18
Sikes, William L.
350 9629, G02B 626, G02B 602
Patent
active
048221260
ABSTRACT:
The invention relates to a single mode fiber optic coupler which is wavelength independent and a method of manufacture thereof. The coupler comprises two single mode fibers positioned side by side which are fused in a manner such that they taper down into a substantially circular cross section coupling region wherein the two cores of the fibers run therethrough. In its most preferred aspect to achieve wavelength independence, the fibers are selected to have indexes of refraction at the core which are sufficiently different such that uniform coupling throughout a broad range of light wavelengths is achieved.
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Electronics Letters, "Novel Method for Characterisation of Single-Mode Fibers and Prediction of Crossover Wavelength and Bandpass in Nonidentical Fibre Directional Couplers", Jul. 17, 1986, vol. 22, No. 15.
Corke Michael
Schmidt Kevin M.
Sweeny Kevin L.
Amphenol Corporation
Sikes William L.
Ullah Akm E.
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