发明名称 |
3-port optical circulator/switch with mirror |
摘要 |
The present invention is a three port optical circulator including a reflective device such as a mirror. Advantageously, the incorporation of the mirror into the circulator of the present invention enables two ports of the circulator to be terminated using a dual fiber termination and a shared collimating system such as a single GRIN. According to one advantageous embodiment of the invention an optical apparatus of the present invention comprises first and second polarization splitter/combiners including walk-off devices having a splitting end and a combining end. The polarization splitter/combiners further include a polarization interchanger disposed proximate input/output ports at the combining end of the walk-off device. A generalized polarization splitter/combiner further includes another walk-off device having input/output ports at a first end thereof and input/output ports at a second end thereof, the first generalized polarization splitter/combiner including a reflective polarization interchanger disposed proximate input/output ports at the second end. The generalized polarization splitter/combiner is coupled between the first and second polarization splitter/combiner. The device also includes a non-reciprocal polarization interchanger positioned between the second polarization splitter/combiner and first generalized polarization splitter/combiner. The apparatus illustratively functions as a 3-port circulator/1x2 switch.
|
申请公布号 |
US5923472(A) |
申请公布日期 |
1999.07.13 |
申请号 |
US19970819537 |
申请日期 |
1997.03.17 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
BERGMANN, ERNEST EISENHARDT |
分类号 |
G02B6/26;G02B6/34;G02F1/09;G02F1/31;(IPC1-7):G02B27/10 |
主分类号 |
G02B6/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|