发明名称 |
HYBRID OPTICAL FILTERING CIRCUIT |
摘要 |
A hybrid filter includes a dichroic interference WDM filter closely coupled with a Bragg grating. Preferably the Bragg grating is housed within a sleeve having an end face that is directly coupled with an end face lens of the WDM interference filter. Th e entire filter can be placed within a single housing and temperature controlled. Etalon effects are lessened by placing the Bragg grating as close as possible to the WDM filter. Multiple hybrid filters of this type optically coupled to an optical circulator provided multi-channel demultiplexing.
|
申请公布号 |
CA2211781(C) |
申请公布日期 |
2002.12.10 |
申请号 |
CA19972211781 |
申请日期 |
1997.07.29 |
申请人 |
JDS FITEL INC. |
发明人 |
FARRIES, MARK;DUCK, GARY STEPHEN;CHENG, YIHAO |
分类号 |
G02B6/34;(IPC1-7):G02B5/26;H04J14/02 |
主分类号 |
G02B6/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|