Superfluorescent fiber source

Details Superfluorescent fiber source Superfluorescent fiber source

H - Electricity

01

S

H01S 3/067 (2006.01) H01S 3/094 (2006.01)

Patent

CA 2300396

A low-cost superfluorescent fiber souce. A gain medium in a length of optical fiber is pumped in counter-propagation by a pump source, producing superfluorescent radiation. The pump source is coupled to the fiber by a first coupler, disposed forward of the gain medium, that selectively transmits the pump signal in the backward direction, and the superfluorescence in the forward direction. A second coupler is disposed backward of the gain medium, selectively transmitting the backward propagating superfluorescent radiation along a first path and the pump signal along a second path, the pump signal is absorbed in the second path by a high-attenuation fiber, to avoid feedback to the pump laser, and the superfluorescent is reflected in the first path back toward the source output. Advantageously, this source can be realized with readily available optical , components that are easy to assemble and do not require any alignment.

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