Patent ID: 6028702
Filing Date: 2000-02-22
Classification: G02B,G02F,Y10S

Abstract:
An optical isolator, comprising:an optical isolator unit having a plurality of optical elements including at least two Faraday rotators and a plurality of birefringent crystal plates, the plurality of optical elements being arranged such that at least one birefringent crystal plate is positioned on either side of each Faraday rotator;a plurality of magnets arranged on a circumference of the Faraday rotators for magnetizing the Faraday rotators, the plurality of magnets being fixed to a spacer positioned between the magnets;a housing body arranged on the circumference of the plurality of magnets, the optical isolator unit being fixed to the plurality of magnets; anda substrate positioned within the plurality of magnets, respective optical elements being inserted into slots provided on a surface of the substrate.