Optical tap collimator using an uncoated GRIN lens

摘要

Disclosed is a tap coupler which comprises a ferrule comprising first and second optical fibers symmetrically positioned with respect to an optical axis for transmitting optical signals; and a graded index (GRIN) lens converting a part of the optical signals provided by one of the optical fibers of the ferrule into parallel beams and outputting the same, and reflecting the remaining part of the optical signals and outputting the same to another optical fiber of the ferrule, and having an uncoated beam outputting surface. The tap coupler can easily extract a part of the transmitted optical signals with low production cost and a smaller size.