Optical isolator
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsHiroki Yoshikawa, Toshiaki Watanabe, Toshihiko Ryuo
Life of this patent
Estimating the term…
Abstract
Herein provided is an optical isolator which permits the reduction of the production cost and which is excellent in the thermal shock resistance. The optical isolator of the present invention is that the Farady rotator be adhered to the birefringent crystals or glass polarizers through adhesive layers and that the glass transition point of the adhesive be not more than −40° C.
Claims4
An optical isolator comprising a Farady rotator and birefringent crystals or glass polarizers, whereby the Farady rotator is adhered to the birefringent crystals or glass polorizers through thermo-setting or photo-setting modified silicone adhesive layers, wherein the glass transition point of the adhesive is not more than −40° C.
Dependencies are inferred from the claim text.