公开(公告)号：US09563073B2

公开(公告)日：2017-02-07

申请号：US14316997

申请日：2014-06-27

Applicant: Lumentum Operations LLC

Inventor： Wei Xiong ,  Michael C. Larson ,  Zhaoming Li ,  Fenhong Zhou

IPC: G02B27/28 ,  G02F1/09 ,  G02B6/27 ,  G02B6/32 ,  G02B6/42

CPC classification number: G02F1/093 ,  G02B6/2746 ,  G02B6/32 ,  G02B6/4209 ,  G02B6/4286

Abstract: An integrated and compact multifunctional optical isolator (i.e., a combined splitter, isolator, and spot-size converter), which is suitable for use in a TOSA, includes input optics including a first polarizer, a Faraday rotator, and a second polarizer. The input optics include a wedge having a partially reflective coating disposed on a first face thereof. The input beam is incident on the first face at a non-normal angle of incidence such light passing through the wedge is refracted to a second face of the wedge, which is tilted relative to the first face by a predetermined wedge angle. At least one of the non-normal angle of incidence and the predetermined wedge angle is determined dependence upon a refractive index of the wedge material and a target anamorphic magnification of the input beam of light.

Abstract translation: 适用于TOSA的集成且紧凑的多功能光隔离器（即，组合分离器，隔离器和点尺寸转换器）包括包括第一偏振器，法拉第转子和第二偏振器的输入光学器件。 输入光学器件包括具有设置在其第一面上的部分反射涂层的楔形物。 输入光束以非正常入射角入射在第一面上，通过楔形物的光折射到相对于第一面倾斜预定楔角的楔形物的第二面。 根据楔形材料的折射率和输入光束的目标变形倍率来确定非正常入射角和预定楔角中的至少一个。