GRIN Optical tap module incorporating a GRIN lens with a tilted facet mirror

摘要

PURPOSE: An optical waveguide tap by using a graded index lens mirror with a sloping cross section is provided to detect a portion of traveling optical signal by using the reflection between the lens of the collimation unit and the air. CONSTITUTION: An optical waveguide tap by using a graded index lens mirror with a sloping cross section includes a first collimation part(10), a second collimation part(20) and an optical detector(30). The first collimation part(10) is made of an optical waveguide(11) and a graded index(GRIN) lens(12). The second collimation part(20) is made of an optical fiber(21) and a GRIN lens(22) with a sloping cross section for partially reflecting the optical signal inputted thereto. And, the optical detector(30) detects the optical signal partially reflected from the sloping cross section of the GRIN lens(22).