Patent ID: 7003182
Filing Date: 2006-02-21
Classification: G02B

Abstract:
1. An optical isolator comprising an optical element comprised of an incoming side polarizer, a Faraday rotator and an outgoing side polarizer superposed in this order in the direction of an optical path, in an optical fiber or optical waveguide having a substantially straight light axis, a slot defined by a pair of walls extending across the optical fiber or optical waveguide in a direction slanted at a slant angle with respect to the light axis, the optical element being inserted in the slot, and spaces between the optical element and the walls defining the slot being filled with optical adhesive portions, and at least one of interfaces between the incoming side polarizer, the Faraday rotator, the outgoing side polarizer and the optical adhesive portions being inclined at an angle opposite to the wall on the an incoming side of the slot as measured from a plane normal to the light axis.