发明名称 |
Optical element and light receiving device |
摘要 |
An optical element includes: a polarization splitter that splits light input from an input port into a first signal and a second signal according to a plane of polarization; a polarization rotator that rotates a plane of polarization of the second signal output from the polarization splitter by 90 degrees; a first optical coupler that combines the first signal output from the polarization splitter and the second signal output from the polarization rotator and splits the resultant signal into a third signal and a fourth signal with an equal amplitude; a phase controller that controls a phase of the third signal; and a second optical coupler that combines the third signal output from the phase controller and the fourth signal output from the first optical coupler and splits the resultant signal into a fifth signal and a sixth signal with an equal amplitude. |
申请公布号 |
US9615152(B2) |
申请公布日期 |
2017.04.04 |
申请号 |
US201514730680 |
申请日期 |
2015.06.04 |
申请人 |
FUJITSU LIMITED;PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION |
发明人 |
Jeong Seokhwan |
分类号 |
H04B10/08;H04B17/00;H04Q11/00;H04J14/02;H04B10/60;H04B10/079;H04B10/67 |
主分类号 |
H04B10/08 |
代理机构 |
Kratz, Quintos & Hanson, LLP |
代理人 |
Kratz, Quintos & Hanson, LLP |
主权项 |
1. An optical element comprising:
a polarization splitter that splits light input from an input port into a first signal and a second signal according to a plane of polarization; a polarization rotator that rotates a plane of polarization of the second signal output from the polarization splitter by 90 degrees; a first optical coupler that combines the first signal output from the polarization splitter and the second signal output from the polarization rotator and splits a resultant signal of combining the first signal and the second signal into a third signal and a fourth signal with an equal amplitude; a phase controller that controls a phase of the third signal; and a second optical coupler that combines the third signal output from the phase controller and the fourth signal output from the first optical coupler and splits a resultant signal of combining the third signal and the fourth signal into a fifth signal and a sixth signal with an equal amplitude, wherein the phase controller controls the phase of the third signal according to a polarization state of the light input from the input port. |
地址 |
Kawasaki JP |