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11. 发明授权

US4709414A Optical fiber order wire system 失效
标题翻译：光纤订丝系统
公开(公告)号：US4709414A
公开(公告)日：1987-11-24
申请号：US799833
申请日：1985-11-20
申请人： Vincent C. So , Paul J. Vella , David D. Clegg , Richard P. Hughes
发明人： Vincent C. So , Paul J. Vella , David D. Clegg , Richard P. Hughes
IPC分类号： H04B10/40 , H04B10/00 , H04B10/07 , H04B17/00 , H04L5/16 , H04M9/02 , H04B9/00
CPC分类号： H04B10/278 , H04B10/40
摘要： An order wire system which can be used during installation and maintenance of an optical fiber communication system comprises an optical fiber order wire to which engineers can connect at remote sites communication sets each of which includes a microphone and earphone allowing the engineers to communicate with each other. Full duplex and multi-party operation can be achieved with the sets according to the invention and, because the signals are regenerated, the range of operation is considerable. Both analog and digital communication is contemplated and different specific circuits are proposed. In a typical analog configuration, the microphone output is fed to first and second frequency modulators operating respectively at first f.sub.1 and second f.sub.2 center frequencies. The outputs of the modulators are summed and passed to a laser driver and laser which is optically coupled both to the upstream and the downstream side of the order wire. Optical detectors are respectively connected to the upstream and downstream sides of the order wire and the outputs of these are fed through first and second bandpass filters to respective frequency demodulators. One of the filters passes only f.sub.1 frequencies and the other only f.sub.2 frequencies. The outputs of the demodulators are fed to the earphone and also back to the respective modulators for regeneration.
摘要翻译：可以在光纤通信系统的安装和维护期间使用的订单线系统包括光纤订单导线，工程师可以在远程站点连接到通信设备，每个通信设备包括麦克风和耳机，允许工程师相互通信。可以利用根据本发明的集合来实现全双工和多方操作，并且由于信号被再生，操作范围是相当大的。考虑到模拟和数字通信，并提出不同的具体电路。在典型的模拟配置中，麦克风输出被馈送到分别在第一f1和第二f2中心频率处操作的第一和第二频率调制器。调制器的输出被相加并传递到激光驱动器和激光器，激光驱动器和激光器被光耦合到订单线的上游侧和下游侧。光检测器分别连接到订单线的上游侧和下游侧，并且它们的输出通过第一和第二带通滤波器馈送到相应的频率解调器。其中一个滤波器仅通过f1频率，而仅通过f2频率。解调器的输出被馈送到耳机并且还返回到相应的调制器用于再生。

12. 发明授权

US4950887A Optical fiber interface 失效
标题翻译：光纤接口
公开(公告)号：US4950887A
公开(公告)日：1990-08-21
申请号：US426659
申请日：1989-10-26
申请人： Richard P. Hughes , Vincent C. So , Paul J. Vella
发明人： Richard P. Hughes , Vincent C. So , Paul J. Vella
IPC分类号： G02B6/35 , G02B6/42 , H04B10/08
CPC分类号： G02B6/3502 , G02B6/3594 , G02B6/4246 , H04B10/07 , G02B6/3506 , G02B6/3508 , G02B6/3578 , G02B6/3598
摘要： An optical fiber interface includes a detector assembly, which may include an integral fiber, for detecting an optical signal carried on a single fiber in an outbound direction and a piezo electric transducer or the like for providing relative movement between the fiber and the detector assembly to produce a modulated return optical signal in reflections of the outbound signal. The return optical signal has a lower frequency or data rate than the outbound signal. Several embodiments modulate the return signal by relative movement either perpendicular to or parallel to the fiber. The perpendicular movement modulates the reflected signal by varying alignment of the fiber and detector assembly, while the parallel movement modulates by varying a Fabry-Perot gap formed between the fiber and the detector assembly. One embodiment includes a cantilever beam of semiconductor material attached to the detector surface. The beam providing an integrated transducer and reflecting surface.
摘要翻译：光纤接口包括检测器组件，其可以包括整体光纤，用于检测在出射方向上的单个光纤上携带的光信号和压电换能器等，用于提供光纤和检测器组件之间的相对运动在出站信号的反射中产生调制的返回光信号。返回光信号具有比出站信号更低的频率或数据速率。几个实施例通过垂直于或平行于纤维的相对运动来调制返回信号。垂直移动通过改变光纤和检测器组件的对准来调制反射信号，同时通过改变在光纤和检测器组件之间形成的法布里 - 珀罗间隙来调节平行移动。一个实施例包括附接到检测器表面的半导体材料的悬臂梁。梁提供集成的换能器和反射面。

13. 发明授权

US4859018A Optical fiber bandwidth limiting 失效
标题翻译：光纤带宽限制
公开(公告)号：US4859018A
公开(公告)日：1989-08-22
申请号：US61625
申请日：1987-06-15
申请人： Maurice S. O'Sullivan , Hyung B. Kim , Vincent C. So , Paul J. Vella
发明人： Maurice S. O'Sullivan , Hyung B. Kim , Vincent C. So , Paul J. Vella
IPC分类号： G02B6/28 , H04B10/18
CPC分类号： H04B10/2507 , G02B6/2861
摘要： A bandwidth limiter for an optical fiber transmission path comprises a four-port optical coupler via which an optical signal is passed. A spliced optical fiber provides a loop, from an output to an input of the coupler, with a predetermined propagation delay and attenuation. An alternative arrangement uses two couplers which are coupled together via fibers of different length and hence propagation delay.
摘要翻译：用于光纤传输路径的带宽限制器包括通过光信号的四端口光耦合器。拼接的光纤以预定的传播延迟和衰减提供从耦合器的输出到输入的环路。一种替代方案是使用两个耦合器，它们通过不同长度的光纤和传播延迟耦合在一起。

14. 发明授权

US4708476A Method of determining optical fiber splice loss 失效
标题翻译：确定光纤接头损耗的方法
公开(公告)号：US4708476A
公开(公告)日：1987-11-24
申请号：US857223
申请日：1986-04-29
申请人： Vincent C. So , Richard P. Hughes , Paul J. Vella , Jason B. Lamont
发明人： Vincent C. So , Richard P. Hughes , Paul J. Vella , Jason B. Lamont
IPC分类号： G02B6/24 , G01M11/00 , G01M11/02 , G02B6/38 , G02B6/42 , G01N21/84 , G01N21/59
CPC分类号： G01M11/35 , G02B6/3803 , G02B6/4286 , G02B6/4289 , G02B6/424
摘要： In the formation of a splice between two optical fibers, the splice loss is determined by locally supplying an optical signal to each fiber, in a direction towards the end to be spliced, and measuring the signal level at the end of the fiber before making the splice, and using a symmetric detector to measure in one of the fibers the signal level passing in one direction towards the splice and in the opposite direction after passing through the splice, the splice loss being calculated from differences between the measurements. Alternative forms of symmetric detector, which is substantially equally responsive to optical signals in either direction in a fiber, are also described.
摘要翻译：在形成两个光纤之间的接头时，通过在朝向待拼接端部的方向上向每个光纤局部地提供光信号，并且在制造之前测量光纤末端的信号电平来确定接合损耗并且使用对称检测器在一个光纤中测量信号电平在穿过接头之后沿一个方向朝着接头和相反方向传播，因此测量之间的差异来计算接头损耗。还描述了对称检测器的替代形式，其在光纤中在任一方向上基本上等同地响应光信号。

15. 发明授权

US4697869A Attenuator for optical fiber 失效
标题翻译：光纤衰减器
公开(公告)号：US4697869A
公开(公告)日：1987-10-06
申请号：US786426
申请日：1985-10-11
申请人： Vincent C. So , Richard P. Hughes , Paul J. Vella
发明人： Vincent C. So , Richard P. Hughes , Paul J. Vella
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02B6/266 , G02B6/4289 , G02B6/4285
摘要： An attenuator for an optical fiber has a tapered screw around which the fiber is looped, the fiber engaging within the screw thread. The fiber is held fixed in position by a spring so that as the screw is rotated the radius of curvature of that part of the fiber held against the screw is altered. Light propagating along the fiber is radiated out at the fiber bend, the level of radiation loss depending on the bend radius of curvature. The attentuator elements are mounted within a light-tight box with the fiber terminating at optical connector components mounted within a wall of the housing. The connector components enable rapid insertion of the attenuator into an optical transmission line to provide an accurate reproducible level of attenuation.
摘要翻译：用于光纤的衰减器具有锥形螺钉，纤维环绕其周围，纤维接合在螺纹内。纤维通过弹簧固定在适当的位置，因此随着螺钉的旋转，保持在螺钉上的纤维部分的曲率半径被改变。沿纤维传播的光在光纤弯曲处被辐射出，辐射损耗的水平取决于弯曲曲率半径。注意元件安装在不透光盒内，光纤端接在安装在外壳壁上的光连接器部件上。连接器部件能够将衰减器快速插入到光传输线中以提供精确的可再现的衰减水平。

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