发明授权
- 专利标题: Hybrid optical filtering circuit
- 专利标题(中): 混合光滤波电路
-
申请号: US701796申请日: 1996-08-26
-
公开(公告)号: US5754718A公开(公告)日: 1998-05-19
- 发明人: Gary S. Duck , Yihao Cheng , Mark Farries
- 申请人: Gary S. Duck , Yihao Cheng , Mark Farries
- 申请人地址: CAX Nepean
- 专利权人: JDS Fitel Inc.
- 当前专利权人: JDS Fitel Inc.
- 当前专利权人地址: CAX Nepean
- 主分类号: G02B6/34
- IPC分类号: G02B6/34 ; G02B6/32
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. The 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.
公开/授权文献
- US5026904A Production of hydrocarbyl formates 公开/授权日:1991-06-25
信息查询