一种准直透镜以及包括其的光模块制造技术

本发明专利技术公开了一种准直透镜，包括前凸非球透镜、第一偏振片、法拉第旋转FR晶体、第二偏振片、后凸非球透镜；所述前凸非球透镜耦合到所述准直透镜的第一端面，所述后凸非球透镜耦合到所述准直透镜的第二端面；所述第一偏振片耦合到所述前凸非球透镜与所述FR晶体之间，所述第二偏振片耦合到所述FR晶体与所述后凸非球透镜之间。本发明专利技术实施例提供的光模块与现有技术一相比，由于准直透镜兼具准直透镜和隔离器的功能，所以可以将原先封装结构中的隔离器去掉，可以使用TO‑CAN封装来降低成本。另外，由于Etalon滤波器不需要倾斜一定的角度，因此，也没有现有技术二中的插损增大、滤波器半高宽加宽以及腔内反射造成的性能劣化问题。

A collimating lens and an optical module including the same

The invention discloses a collimating lens, including non lordosis ball lens, a first polarizer, Faraday rotation of FR crystal, a second polarizer, convex aspheric lens; the non lordosis ball lens coupled to the first end face of the collimating lens, spherical lens coupled to the second end surface of the collimating lens are non convex the rear; the first polarizer is coupled to the non lordosis ball lens and the FR crystal between the second polarizing plate is coupled to the non convex lens between the ball and the post of FR crystal. The embodiment of the invention provides an optical module compared with the existing technology, the collimating lens and the collimating lens with isolator function, so it can be the original isolator in packaging removed, you can use the TO CAN package to reduce the cost of. In addition, because the Etalon filter does not need to tilt a certain angle, there are no performance degradation problems such as the insertion loss increase, the half width widening of the filter and the intracavity reflectivity.

【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。

【技术保护点】
PCT国内申请，权利要求书已公开。

【技术特征摘要】
【国外来华专利技术】PCT国内申请，...

【专利技术属性】
技术研发人员：周敏，周恩宇，廖振兴，
申请(专利权)人：华为技术有限公司，
类型：发明
国别省市：广东,44