-
公开(公告)号：US20170075189A1
公开(公告)日：2017-03-16
申请号：US15360515
申请日：2016-11-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chongchang Mao , Minchun Li , Hong Min
CPC classification number: G02F1/292 , G02B27/30 , G02F1/1393 , G02F1/29 , G02F2201/30 , G02F2201/34 , G02F2203/07
Abstract: Embodiments of the present invention provide a variable optical attenuator. The variable optical attenuator includes: a collimator, a switchable polarization grating, a reflector, and a voltage controller for adjusting a voltage between electrodes at both ends of a liquid crystal layer of the switchable polarization grating, where the collimator, the switchable polarization grating, and the reflector are disposed successively; the collimator is configured to receive incident light and output the incident light to the switchable polarization grating; the switchable polarization grating is configured to diffract the incident light for one time and then perform emission onto the reflector; the switchable polarization grating is further configured to diffract, for one time, a beam reflected back by the reflector, and then emit resulting diffracted light; and the collimator is further configured to receive the diffracted light and output the diffracted light.
Abstract translation: 本发明的实施例提供一种可变光衰减器。 可变光衰减器包括：准直器，可切换偏振光栅，反射器和电压控制器，用于调节可切换偏振光栅的液晶层两端的电极之间的电压，其中准直器，可切换偏振光栅， 反射器依次配置; 准直器被配置为接收入射光并将入射光输出到可切换偏振光栅; 可切换偏振光栅被配置为将入射光衍射一次，然后对反射器执行发射; 可切换偏振光栅还被配置为一次衍射由反射器反射回的光束，然后发射所产生的衍射光; 并且准直器还被配置为接收衍射光并输出衍射光。
-
公开(公告)号：US09927678B2
公开(公告)日：2018-03-27
申请号：US15360515
申请日：2016-11-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chongchang Mao , Minchun Li , Hong Min
CPC classification number: G02F1/292 , G02B27/30 , G02F1/1393 , G02F1/29 , G02F2201/30 , G02F2201/34 , G02F2203/07
Abstract: Embodiments of the present invention provide a variable optical attenuator. The variable optical attenuator includes: a collimator, a switchable polarization grating, a reflector, and a voltage controller for adjusting a voltage between electrodes at both ends of a liquid crystal layer of the switchable polarization grating, where the collimator, the switchable polarization grating, and the reflector are disposed successively; the collimator is configured to receive incident light and output the incident light to the switchable polarization grating; the switchable polarization grating is configured to diffract the incident light for one time and then perform emission onto the reflector; the switchable polarization grating is further configured to diffract, for one time, a beam reflected back by the reflector, and then emit resulting diffracted light; and the collimator is further configured to receive the diffracted light and output the diffracted light.
-
Search Results
2
records
(took 0.012 seconds)
