Patent ID: 6498876
Filing Date: 2002-12-24
Classification: G02B

Abstract:
A multi-port fiber optic device comprising:two opposite collimators, each of said collimators including: a dual fiber ferrule and a GRIN rod lens attached in front thereof; an input fiber and an output fiber received within the dual fiber ferrule; and at least a filter disposed on a front end of one of said collimator; whereinsad at least one filter is sandwiched between the two GRIN rod lenses of said two collimators, and said two GRIN rod lenses are secured to each other by adhesives; wherein; said dual fiber ferrule includes a pair of V-shaped grooves for receiving the input fiber and the output fiber therein; wherein two light beams collimated through the input fiber and the output fiber, coincide with each other at a position where the filter is located, thus reducing the insertion loss between the input fiber and the output fiber.