Optical amplifier manufacture

Details Optical amplifier manufacture Optical amplifier manufacture

H - Electricity

04

B

H04B 10/16 (2006.01) H01S 3/067 (2006.01)

Patent

CA 2291531

A construction of gain tilt exhibiting optical amplifier that incorporates a gain flattening filter also includes a neutral density filter the value of whose attenuation is adjustable after assembly of the components of the amplifier. This neutral density filter is constructed by the performance of a succession of localised re-fusion operations at a localised region of an optical fibre. By this means the attenuation is increased to a desired value that provides the amplifier with optimised gain flattening at some predetermined value of amplifier external gain.

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