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公开(公告)号：US4185883A
公开(公告)日：1980-01-29
申请号：US889968
申请日：1978-03-24
申请人： Martin Chown , John S. Leach
发明人： Martin Chown , John S. Leach
CPC分类号： G02B6/3835 , G02B6/3846
摘要： An optical fiber coupling element in which a short length of optical fiber is placed in a glass sleeve with one end of the fiber projecting from the sleeve. The glass sleeve is collapsed onto the fiber, and a watch jewel is fitted over the fiber end. The other end of the sleeve is flared to facilitate the insertion into it of a second fiber. The sleeve and jewel are sealed into one end of a ferrule.
摘要翻译： 一种光纤耦合元件，其中短纤维的光纤被放置在玻璃套筒中，纤维的一端从套筒突出。 玻璃套筒折叠在纤维上，手表宝石装在光纤端上。 套管的另一端被张开以便于插入第二纤维。 套筒和宝石密封在套圈的一端。
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公开(公告)号：US4183737A
公开(公告)日：1980-01-15
申请号：US925266
申请日：1978-07-17
CPC分类号： G02B6/3803 , G02B6/3846
摘要： An optical fiber coupler comprising a glass sleeve having a link piece of single material glass optical fiber having a refractive index higher than the sleeve mounted in a central section of the sleeve. The central section of the sleeve is collapsed to secure the link piece therein, leaving portions of the sleeve beyond the link piece of sufficient cross-section to freely receive optical fibers therein to be optically coupled. An index matching adhesive is used to secure the fibers in the sleeve abutting the link piece.
摘要翻译： 一种光纤耦合器，包括玻璃套管，所述玻璃套管具有单个材料玻璃光纤的连接片，折射率高于安装在所述套管的中心部分中的套筒的折射率。 套筒的中心部分被折叠以将连接件固定在其中，使得套筒的一部分超过足够横截面的连接件以自由地接收其中的光纤以进行光耦合。 使用折射率匹配粘合剂来固定邻接连接片的套筒中的纤维。
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公开(公告)号：US4166946A
公开(公告)日：1979-09-04
申请号：US804686
申请日：1977-06-08
IPC分类号： H04B10/27 , H04B10/275 , G02B5/14 , H04B9/00
CPC分类号： H04B10/27 , H04B10/275
摘要： An optical fibre data transmision system in which some terminals at least act as repeaters for received data. Each terminal is allotted a specified transmission time. Terminals are provided with optical fibre by-pass arrangements in case a repeating terminal fails.
摘要翻译： 一种光纤数据传输系统，其中一些终端至少用作接收数据的中继器。 每个终端分配一个指定的传输时间。 在重复端子故障的情况下，端子提供光纤旁路布置。
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公开(公告)号：US07978973B2
公开(公告)日：2011-07-12
申请号：US12431310
申请日：2009-04-28
IPC分类号： H04J14/02
CPC分类号： H04L1/0063 , H04J14/02 , H04J14/0221 , H04L1/0001 , H04L25/14
摘要： A wavelength division multiplexing transmission system, the system comprising: a plurality of channels at different wavelengths, each channel comprising a transmitter, a receiver, and one or more amplifiers, the system further comprising an encoder for encoding data with a coding, and; a decoder for decoding transmitted data; prioritizing means for prioritizing the data on each channel; monitoring means for monitoring directly or indirectly, raw (uncorrected) bit errors on each channel; power adjusting means for, varying the power on a channel in response to the bit error rate.
摘要翻译： 一种波分复用传输系统，该系统包括：不同波长的多个信道，每个信道包括发射机，接收机和一个或多个放大器，所述系统还包括用于利用编码对数据进行编码的编码器， 用于解码发送数据的解码器; 对每个频道上的数据进行优先排序的优先级方法; 用于直接或间接监视每个通道上的原始（未校正）位错误的监视装置; 功率调整装置，用于响应于误码率改变频道上的功率。
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公开(公告)号：US06028871A
公开(公告)日：2000-02-22
申请号：US178312
申请日：1998-10-23
CPC分类号： H05B33/0812 , H01S5/042 , H05B33/0803 , H01S5/0427 , H01S5/06825
摘要： The present invention relates to a circuit for driving a solid state optical emitter device such as a laser diode, and in particular a circuit which limits the maximum current which may be drawn through the device. The circuit comprises a current supply path and a current return path to which the optical emitter may be connected, and a current limit device to limit a maximum current that may flow through one of the current paths. The current limit device has a current mirror with an input portion and an output portion, the circuit being arranged so that when a first current flows through the input portion, the second portion is predisposed to supply a second current up to a maximum which mirrors the first current. The maximum current through the paths is thereby limited in accordance with the maximum of the second current.
摘要翻译： 本发明涉及一种用于驱动诸如激光二极管的固态光发射器件的电路，特别是限制可通过该器件绘制的最大电流的电路。 电路包括电流供应路径和光发射器可以连接到的电流返回路径，以及限制可能流过电流路径之一的最大电流的限流装置。 电流限制装置具有带有输入部分和输出部分的电流镜，电路被布置成使得当第一电流流过输入部分时，第二部分被预先设置以提供最大值的第二电流， 第一流。 因此，通过路径的最大电流根据第二电流的最大值而受到限制。
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公开(公告)号：US4185885A
公开(公告)日：1980-01-29
申请号：US929792
申请日：1978-07-31
申请人： Martin Chown , Melvin M. Ramsay
发明人： Martin Chown , Melvin M. Ramsay
CPC分类号： G02B6/264
摘要： An optical fiber connector in which each fiber is terminated by a coupling element comprising a cylindrical transparent body having a concave reflector on one end facing into the body and a circular reflector on the opposite end facing the concave reflector. The circular reflector has a diameter less than that of the cylindrical body and is concentric therewith. This arrangement has the advantage that the main focussing elements are reflectors and therefore require far less curvature than lenses.
摘要翻译： 一种光纤连接器，其中每个光纤由耦合元件端接，所述耦合元件包括圆柱形透明体，所述圆柱形透明体在一端面向所述主体中具有凹形反射器，所述圆形反射器在面向所述凹面反射器的相对端上。 圆形反射器的直径小于圆柱体的直径，并与圆筒体同心。 这种布置的优点在于，主要聚焦元件是反射器，因此需要比透镜少得多的曲率。
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公开(公告)号：US4097891A
公开(公告)日：1978-06-27
申请号：US670323
申请日：1976-03-25
申请人： Peter Richard Selway , Martin Chown , Richard Edward Epworth , Norman Derek Leggett , Harish Ram Dass Sunak
发明人： Peter Richard Selway , Martin Chown , Richard Edward Epworth , Norman Derek Leggett , Harish Ram Dass Sunak
CPC分类号： H01S5/02208 , H01L24/45 , H01S5/02484 , H01L2224/45 , H01L2924/00011 , H01L2924/00014 , H01L2924/01015 , H01L2924/12042 , H01L2924/3011 , H01S5/02264
摘要： A laser stud mount wherein one terminal connection is provided by the stud and the other by a strip line. One embodiment includes a light guide extending through the stem of the stud mount or along the surface of the stud base for monitoring the light output from the back end of the laser. The monitored light from the back end of the laser can be used to regulate the laser drive.
摘要翻译： 激光螺柱安装座，其中一个端子连接由螺柱提供，另一个由带状线提供。 一个实施例包括延伸穿过螺柱安装座的杆或沿着螺柱基座的表面的光导，用于监测从激光器的后端输出的光。 来自激光后端的监控光可用于调节激光驱动。
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公开(公告)号：US07526205B2
公开(公告)日：2009-04-28
申请号：US10510751
申请日：2003-04-14
IPC分类号： H04J14/02
CPC分类号： H04L1/0063 , H04J14/02 , H04J14/0221 , H04L1/0001 , H04L25/14
摘要： A wavelength division multiplexing transmission system, the system comprising: a plurality of channels at different wavelengths, each channel comprising a transmitter, a receiver, and one or more amplifiers, the system further comprising an encoder for encoding data with a coding, and; a decoder for decoding transmitted data; prioritizing means for prioritizing the data on each channel; monitoring means for monitoring directly or indirectly, raw (uncorrected) bit errors on each channel; power adjusting means for, varying the power on a channel in response to the bit error rate.
摘要翻译： 一种波分复用传输系统，该系统包括：不同波长的多个信道，每个信道包括发射机，接收机和一个或多个放大器，所述系统还包括用于利用编码对数据进行编码的编码器， 用于解码发送数据的解码器; 对每个频道上的数据进行优先排序的优先级方法; 用于直接或间接监视每个通道上的原始（未校正）位错误的监视装置; 功率调整装置，用于响应于误码率改变频道上的功率。
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公开(公告)号：US20060050803A1
公开(公告)日：2006-03-09
申请号：US10510731
申请日：2003-04-14
申请人： Stuart Barnes , Martin Chown , Stephen Webb
发明人： Stuart Barnes , Martin Chown , Stephen Webb
IPC分类号： H04L5/12
CPC分类号： H04L1/0063 , H04J14/02 , H04J14/0221 , H04L1/0001 , H04L25/14
摘要： A transmission system for transmitting data over a channel in the form of a digital signal comprising bits of data, the system comprising an encoder for encoding the data prior to transmission, the encoder producing coding in the form of an overhead, and a decoder for decoding the data after transmission, characterised in that a first portion only of the data is encoded, the second portion remaining uncoded, the system further comprising a partitioner for partitioning the overhead from the uncoded data portion of the signal, after the first portion data has been encoded.
摘要翻译： 一种用于以包含数据位的数字信号的形式通过信道发送数据的传输系统，该系统包括用于在传输之前对数据进行编码的编码器，编码器以开销的形式产生编码和用于解码的解码器 传输后的数据，其特征在于仅对数据进行编码的第一部分，第二部分保持未编码，该系统还包括一个分割器，用于在第一部分数据已经被写入之后将信号的未编码数据部分的开销分配 编码。
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公开(公告)号：US4411526A
公开(公告)日：1983-10-25
申请号：US487997
申请日：1983-04-29
CPC分类号： G01C19/72
摘要： In a Sagnac effect optical fibre gyroscope, which uses a phase nulling photo detection technique to drive a feedback loop controlling one or more non-reciprocal elements connected in series with the coil, a commutating switch reverses the direction of propagation of oppositely directed beams of light directed through the coil and non-reciprocal elements. The null balance is detected as the absence in the photodetector output of any a.c. component in phase or out of phase with the commutation switching. This removes a source of systematic error occasioned by drift in optical parameters of unbalanced components.
摘要翻译： 在Sagnac效应光纤陀螺仪中，其使用相位归零光检测技术来驱动控制与线圈串联连接的一个或多个非可逆元件的反馈环路，换向开关反转相反方向的光束的传播方向 通过线圈和非互易元件引导。 检测到零平衡，因为光电探测器输出中没有任何直流。 分相同相或异相与换相切换。 这消除了由不平衡组件的光学参数中的偏移引起的系统误差源。
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