发明名称 |
LIQUID CRYSTAL OPTICAL SWITCH CONFIGURED TO REDUCE POLARIZATION DEPENDENT LOSS |
摘要 |
An optical device has the structure to perform switching and attenuation of an optical beam with reduced polarization dependent loss (PDL). The optical device includes a birefringent displacer and two liquid crystal (LC) structures. The first LC structure is used to condition s-polarized components of the optical beam and the second LC structure is used to condition p-polarized components of the optical beam. Each LC structure has a separate control electrode so that the s-polarized components of the optical beam and the p-polarized components of the optical beam can be conditioned differently and in such a manner that reduces PDL. The optical device may be configured for processing multiple input light beams, such as the multiple wavelength channels de-multiplexed from a wavelength division multiplexed (WDM) optical signal.
|
申请公布号 |
US2010277658(A1) |
申请公布日期 |
2010.11.04 |
申请号 |
US20090433769 |
申请日期 |
2009.04.30 |
申请人 |
YUE XUEFENG;LIN CHRISTOPHER;SUN RUIPENG;WANG RUIBO |
发明人 |
YUE XUEFENG;LIN CHRISTOPHER;SUN RUIPENG;WANG RUIBO |
分类号 |
G02F1/13363 |
主分类号 |
G02F1/13363 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|