Polarization maintaining optical fiber connector including positioning flange and method utilizing same

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	Polarization maintaining optical fiber connector including positioning flange and method utilizing same
其他题名	Polarization maintaining optical fiber connector including positioning flange and method utilizing same
	NAGASE, RYO; ANDO, YASUHIRO
	1993-06-01
专利权人	NIPPON TELEGRAPH & TELEPHONE CORPORATION
公开日期	1993-06-01
授权国家	美国
专利类型	授权发明
摘要	This invention presents a method and an apparatus for adjusting the axial orientation angle between the principal axis of a polarization maintaining fiber (PMF) and a ferrule with ease and precision. The invented ferrule is composed of a ferrule body, having a through hole into which a PMF is inserted, and a ring-shaped flange, having a keyway on the circumferential rim, installed on the outer periphery of the ferrule body. An engaging part is provided on the periphery to restrain the forward movement of the ferrule body by engaging with the flange. The invented ferrule enables adjustment of the axial angle, between the principal axis of the PMF and the keyway of the flange, to be made after adhesively bonding the PMF onto the ferrule body and polishing the end of the fiber. Therefore, the axial angle adjustment is carried out conveniently and accurately, without being affected by the processing effects, such as curing of the adhesive. Further, when the cable joint is made by joining the plugs, even if the spring compression forces, acting to press together the ferrule bodies, acted on the flange, the forward movement of the flange is restrained by the engaging part, thereby minimizing the adverse residual stress effects on the optical performance properties of the cable.
其他摘要	本发明提供了一种方法和装置，用于容易和精确地调节保偏光纤（PMF）的主轴和套圈之间的轴向取向角。本发明的套圈由套管主体和环形凸缘组成，套管主体具有插入PMF的通孔，环形凸缘在圆周边缘上具有键槽，安装在套管主体的外周上。在周边上设置有接合部分，以通过与凸缘接合来限制套圈主体的向前移动。本发明的套圈能够在将PMF粘接到套圈主体上并抛光光纤的末端之后调节PMF的主轴和凸缘的键槽之间的轴向角度。因此，轴向角度调节方便且准确地进行，而不受诸如粘合剂固化的加工效果的影响。此外，当通过连接插头制成电缆接头时，即使用于将套管主体压在一起的弹簧压力作用在凸缘上，凸缘的向前移动也受到接合部件的限制，从而使不利的最小化。残余应力对电缆光学性能的影响。
授权日期	1993-06-01
申请日期	1992-03-10
专利号	US5216733
专利状态	失效
申请号	US07/848895
公开（公告）号	US5216733
IPC 分类号	G02B6/38 \| G02B6/26
专利代理人	-
代理机构	FINNEGAN,HENDERSON,FARABOW,GARRETT & DUNNER
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/36085
专题	半导体激光器专利数据库
作者单位	NIPPON TELEGRAPH & TELEPHONE CORPORATION
推荐引用方式 GB/T 7714	NAGASE, RYO,ANDO, YASUHIRO. Polarization maintaining optical fiber connector including positioning flange and method utilizing same. US5216733[P]. 1993-06-01.

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