Wavelength independent coupler and method of manufacture...

Details Wavelength independent coupler and method of manufacture... Wavelength independent coupler and method of manufacture...

G - Physics

02

B

26/197, 88/97.5

G02B 6/26 (2006.01) G02B 6/28 (2006.01) G02B 6/34 (2006.01)

Patent

CA 1320371

ABSTRACT WAVELENGTH INDEPENDENT COUPLER AND METHOD OF MANUFACTURE THEREOF 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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