CN203224645U - 保偏耦合器 - Google Patents
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Abstract
一种保偏耦合器，该保偏耦合器包括从光路方向依次封装的反射组件、起偏组件；所述反射组件沿着光路方向依次设置保偏插针座和准直透镜，在保偏插针座中插入光纤插针，该光纤插针对置准直透镜；所述起偏组件包括镜架、三角玻片和平行玻片，所述镜架固定架设三角玻片，所述三角玻片一侧对置着反射组件，而三角玻片的另外一侧对置平行玻片。本实用新型采用较为简单的结构构成反射组件和起偏组件，封装集成整体尺寸小，不需要变构就可以适合小型无源光网络采用，可以根据需要调节监控光信号的分光比和耦合分光比，减少主光路损耗。
Description
【技术领域】
本实用新型涉及一种全光纤结构的光学器件，尤其涉及保偏耦合器。
【背景技术】
随着技术发展、科技不断进步，对供电需求越来越大，越来越多的产品需要不断消耗电能维持。随着电路需求不断攀升，电力系统的容量越来越大，电压等级越来越高，传统的电磁式电流互感器出现不可克服的缺陷。利用光学器件制作的电流互感器出现在技术研发人员的视野中，目前利用光学器件研制的全光纤结构的电路互感器在动态范围、灵敏度、信噪比、回波损耗方面都有极大的优势。
现有全光纤结构的电流互感器网络主要包括光源、光纤耦合器、光纤起偏器、光纤相位延迟器、保偏光纤延迟线、光纤拨片和传感光纤。由于光纤耦合器为保偏耦合器，而使用保偏耦合器的光源监控端和耦合端口的分比必须相同，此时监控光信号的分光比和耦合分光比不能随意控制，导致主光路损耗较大。
【发明内容】
本实用新型针对以上问题提出了集起偏器、探测功能、耦合器功能于一体的保偏耦合器。
本实用新型所述涉及保偏耦合器包括从光路方向依次封装的反射组件、起偏组件；所述反射组件沿着光路方向依次设置保偏插针座和准直透镜，在保偏插针座中插入光纤插针，该光纤插针对置准直透镜；所述起偏组件包括镜架、三角玻片和平行玻片，所述镜架固定架设三角玻片，所述三角玻片一侧对置着反射组件，而三角玻片的另外一侧对置平行玻片。
所述三角玻片是滤光型三角玻片。
所述平行玻片是斜平行玻片。
本实用新型采用较为简单的结构构成反射组件和起偏组件，封装集成整体尺寸小，不需要变构就可以适合小型无源光网络采用，可以根据需要调节监控光信号的分光比和耦合分光 比，减少主光路损耗。
【附图说明】
图1是本实用新型保偏耦合器的结构示意图。
其中：100、保偏耦合器；10、反射组件；11、保偏插针座；12、准直透镜；13、光纤插针；20、起偏组件；21、镜架；22、三角玻片；23、平行玻片。
【具体实施方式】
下面将结合附图及实施例对本实用新型保偏耦合器进行详细说明。
请参考附图1：图中示出了一种保偏耦合器100，其中包括从光路方向依次封装的反射组件10、起偏组件20；所述反射组件10沿着光路方向依次设置保偏插针座11和准直透镜12，在保偏插针座11中插入光纤插针13，该光纤插针13对置准直透镜12；所述起偏组件20包括镜架21、三角玻片22和平行玻片23，所述镜架21固定架设三角玻片22，所述三角玻片22一侧对置着反射组件10，而三角玻片的另外一侧对置平行玻片23。
所述三角玻片22是滤光型三角玻片。
所述平行玻片23是斜平行玻片。
本实用新型采用较为简单的结构构成反射组件和起偏组件，封装集成整体尺寸小，不需要变构就可以适合小型无源光网络采用，可以根据需要调节监控光信号的分光比和耦合分光比，减少主光路损耗。
以上所述，仅是本实用新型较佳实施例而已，并非对本实用新型作任何形式上的限制，虽然本实用新型以较佳实施例揭露如上，然而并非用以限定本实用新型，任何熟悉本专业的技术人员，在不脱离本实用新型技术方案范围内，当可利用上述揭示的技术内容作出些许变更或修饰为等同变化的等效实施例，但凡是未脱离本实用新型技术方案内容，依据本实用新型技术是指对以上实施例所作的任何简单修改、等同变化与修饰，均属于本实用新型技术方案的范围内。
Claims (3)
1.一种保偏耦合器，其特征在于，该保偏耦合器包括从光路方向依次封装的反射组件、起偏组件；所述反射组件沿着光路方向依次设置保偏插针座和准直透镜，在保偏插针座中插入光纤插针，该光纤插针对置着准直透镜；所述起偏组件包括镜架、三角玻片和平行玻片，所述镜架固定架设三角玻片，所述三角玻片一侧对置着反射组件，而三角玻片的另外一侧对置平行玻片。
2.根据权利要求1所述保偏耦合器，其特征在于，所述三角玻片是滤光型三角玻片。
3.根据权利要求1所述保偏耦合器，其特征在于，所述平行玻片是斜平行玻片。
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20180510 |