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公开(公告)号:US5841926A
公开(公告)日:1998-11-24
申请号:US777205
申请日:1996-12-27
申请人: Yoshiaki Takeuchi , Ryo Nagase , Seiko Mitachi , Yuichi Morishita , Akira Kumagai , Yumi Ariga , Kenichi Muta , Kazunari Sugi , Masashi Saijo
发明人: Yoshiaki Takeuchi , Ryo Nagase , Seiko Mitachi , Yuichi Morishita , Akira Kumagai , Yumi Ariga , Kenichi Muta , Kazunari Sugi , Masashi Saijo
CPC分类号: G02B6/0365 , G02B6/03627 , G02B6/03644 , G02B6/266 , G02B6/02004
摘要: Disclosed are optical fibers for optical attenuation comprising a core and a cladding, wherein the cladding comprises two or more parts different from each other in their refractive indices and/or the attenuating dopant existence. By using the optical fibers for optical attenuation of the present invention, an optical attenuator which can effectively reduce the effect of cladding mode upon coupling of optical fibers and is excellent in characteristic stability can be manufactured at a low cost.
摘要翻译: 公开了用于光衰减的光纤,其包括芯和包层,其中包层在其折射率和/或衰减掺杂剂存在中包括彼此不同的两个或更多个部分。 通过使用本发明的光衰减用光纤,能够以低成本制造能够有效地降低包层模式对光纤耦合的影响并且特性稳定性优异的光衰减器。