专利名称：Optical fiber and slanted optical fiber
grating
发明人：Sudo, Masaaki,Niwa, Atuhiko,Okude, Satoshi申请号：EP03250077.9申请日：20030107公开号：EP1333299A3公开日：20040728
专利附图：
摘要：Photosensitivity of an inner core (1a) which is disposed in a central portion of acore (1) is low. Photosensitivity of an outer core (1b) which is disposed close to a cladding(2) is high. In the cladding (2), photosensitivity of the inner cladding (2a) which is close to
the core (1) is high and photosensitivity of an outer cladding (2b) which is outside of theinner cladding (2a) is low. A plurality of slant optical fiber gratings having different opticalcharacteristics by using the optical fiber having such photosensitivity so as to form a gainequalizing optical filter. By doing this, it is possible to provide an optical filter having aslant optical fiber grating which can maintain a filtering characteristics in a narrowbandwidth and enlarge loss area.
申请人：FUJIKURA LTD.
地址：5-1 Kiba 1-chome Kohtoh-ku Tokyo-to JP
国籍：JP
代理机构：Calderbank, Thomas Roger
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容