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公开(公告)号：US06556732B1
公开(公告)日：2003-04-29
申请号：US09589423
申请日：2000-06-07
IPC分类号： G02B600
CPC分类号： H04B10/25133 , H04B10/2569
摘要： A polarization mode dispersion compensator corrects polarization mode dispersion in an optical signal having a fast polarization mode component, a slow polarization mode component and a time differential between the components. The compensator includes a phase shifter and a variable delay section. An input of the phase shifter is coupled to an optical device that provides an optical signal that exhibits polarization mode dispersion. The phase shifter functions to rotate the optical signal principal states of polarization to a desired orientation. The variable delay section includes an input, an output and at least one optical fiber delay line. The input of the variable delay section is coupled to the output of the phase shifter and the desired orientation of the optical signal principal states of polarization are substantially rotated to be in alignment with one of a fast axis and a slow axis of each of the one or more fiber delay lines. In this manner, the variable delay section functions to delay the principal states of polarization of the optical signal with respect to one another as a function of whether the principal states of polarization traverse said one of a fast axis and a slow axis of the at least one optical fiber delay line, thus reducing the time differential between the components.
摘要翻译： 偏振模色散补偿器校正具有快速偏振模式分量，慢偏振模分量和分量之间的时间差的光信号中的偏振模色散。 补偿器包括移相器和可变延迟部分。 移相器的输入耦合到提供呈现偏振模色散的光信号的光学装置。 移相器用于将光学信号的主要偏振状态旋转到期望的取向。 可变延迟部分包括输入，输出和至少一个光纤延迟线。 可变延迟部分的输入耦合到移相器的输出，并且光信号的主要偏振状态的期望取向基本上旋转以与一个的每个的快轴和慢轴中的一个对准 或更多的光纤延迟线。 以这种方式，可变延迟部分用于延迟光信号的相对于彼此的偏振的主要状态，作为偏振的主要状态是否穿过至少至少的快轴和慢轴的所述一个 一个光纤延迟线，从而减少组件之间的时差。
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公开(公告)号：US06510264B2
公开(公告)日：2003-01-21
申请号：US09874721
申请日：2001-06-05
IPC分类号： G02B634
CPC分类号： G02B6/29334 , C03C3/064 , C03C3/091 , C03C4/0085 , C03C4/04 , C03C4/085 , C03C17/3411 , C03C23/00 , C03C23/002 , C03C2201/21 , G02B6/02114 , G02B6/12007 , G02B6/124 , G02B6/125 , G02B6/29319 , G02B2006/12147
摘要： The present invention provides photonic devices utilized in optical telecommunications. The photonic devices include photosensitive bulk glass bodies which contain Bragg gratings, particularly with the ultraviolet photosensitive bulk glass bodies directing optical telecommunications wavelength range bands. Preferably the ultraviolet photosensitive bulk glass bodies are batch meltable alkali boro-alumino-silicate bulk glass bodies. The invention includes an optical communications wavelength device for use with wavelength range bands, with the device comprising an input optical waveguide collimator for collimating an input light beam out of an optical waveguide to provide an unguided input light beam including at least one reflective wavelength range band &lgr;R and at least one wavelengths range band &lgr;n; an internal bulk Bragg grating including a transparent photosensitive bulk optical grating medium with an internal modulated refractive index grating with a grating pattern for reflecting the at least one wavelength range band &lgr;R; at least one output coupler for outputting an at least one output wavelength range band; and a substrate structure for securing said bulk Bragg grating relative to the input collimator and the output coupler, with the bulk Bragg grating disposed in the unguided input light beam wherein the at least one wavelengths range band &lgr;n is transmitted through the bulk Bragg grating and the at least one wavelength range band &lgr;R is reflected by the bulk Bragg grating.
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公开(公告)号：US06754429B2
公开(公告)日：2004-06-22
申请号：US10183879
申请日：2002-06-25
IPC分类号： G02B600
CPC分类号： G02B6/3644 , C03C15/00 , G02B6/0218 , G02B6/2821 , G02B6/3672 , G02B6/3688 , G02B6/3692 , G02B6/3833 , G02B6/4204
摘要： The invention provides a method of making optical fiber devices. The method includes providing an ultrashort subpicosecond laser pulse duration pulse laser for producing a laser output with a wavelength &lgr;, providing a laser output focussing lens having an air working distance ≧3 mm and a ≦1 NA numerical aperture for focussing said laser output, providing a controllable positioning translation stage for receiving an optical fiber device oxide bulk glass body, providing an optical fiber device oxide bulk glass body having a transparency at &lgr; of at least 90%/cm, positioning said oxide bulk glass body with said stage wherein said glass body is received by said stage, focussing said laser output through said laser output focussing lens to produce a subpicosecond laser pulse duration focus proximate the oxide bulk glass body and translating the oxide bulk glass body relative to said subpicosecond laser pulse duration focus wherein said focus traces a hole precursor track pattern through the oxide bulk glass body, acid etching the oxide bulk glass body in an agitated heated acid bath wherein the focussed traced hole precursor track pattern is etched into an optical fiber receiving hole, cleansing the acid etched oxide bulk glass body with the etched optical fiber receiving hole, and inserting an optical fiber into the optical fiber receiving hole to provide a hole contained optical fiber.
摘要翻译： 本发明提供一种制造光纤器件的方法。 该方法包括提供用于产生具有波长λ的激光输出的超短秒亚秒级激光脉冲持续时间脉冲激光器，提供具有空气工作距离> = 3mm的激光输出聚焦透镜和用于聚焦所述激光输出的<= 1NA数值孔径 提供用于接收光纤装置氧化物块体玻璃体的可控定位平移台，提供具有λ至少为90％/ cm 2的透明度的光纤装置氧化物块体玻璃体，将所述氧化物块体玻璃体与所述阶段 所述玻璃体由所述载物台接纳，通过所述激光输出聚焦透镜聚焦所述激光输出，以产生靠近所述氧化物体玻璃体的亚秒级激光脉冲持续时间焦点，并相对于所述亚秒级激光脉冲持续时间焦点平移氧化物体玻璃体，其中所述 焦点通过氧化物块体玻璃体追踪孔前体轨道图案，酸蚀氧化物体积 ass体，其中聚焦的跟踪孔前体轨道图案被蚀刻到光纤接收孔中，用蚀刻的光纤接收孔清洗酸蚀的氧化物块体玻璃体，并将光纤插入到光纤中 接收孔以提供包含光纤的孔。
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公开(公告)号：US4280827A
公开(公告)日：1981-07-28
申请号：US72011
申请日：1979-09-04
申请人： Edward F. Murphy , James R. Portzer
发明人： Edward F. Murphy , James R. Portzer
CPC分类号： G01B11/105 , C03B37/0253
摘要： The diameter of an optical fiber being drawn is monitored and controlled by an optical measuring technique. An electrical input signal is generated from the fringe pattern produced by directing a laser beam onto the fiber. The input signal is connected to appropriate terminals of first, second, third and fourth comparators. The input signal is delayed 180.degree. to provide an input signal to the remaining two terminals of the first and second comparators and is delayed 90.degree. to provide an input signal to the remaining terminals of the third and fourth comparators. The output pulses from the comparators are shaped, summed and counted to provide a control signal for the fiber drawing apparatus.
摘要翻译： 通过光学测量技术来监测和控制被拉伸的光纤的直径。 从通过将激光束引导到光纤上产生的条纹图案产生电输入信号。 输入信号连接到第一，第二，第三和第四比较器的适当端子。 输入信号被延迟180°以向第一和第二比较器的剩余两个端子提供输入信号，并被延迟90°以向第三和第四比较器的其余端子提供输入信号。 来自比较器的输出脉冲被成形，相加和计数，以提供用于光纤拉制装置的控制信号。
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公开(公告)号：US6132104A
公开(公告)日：2000-10-17
申请号：US451751
申请日：1999-11-30
IPC分类号： G02B6/00 , G02B6/36 , G02B6/42 , H01S3/042 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/02
CPC分类号： H01S3/06754 , H01S3/06704 , G02B6/4201 , G02B6/444 , H01S3/094003
摘要： A detachable plug-in pump laser card assembly for placement into an optical fiber amplifier, comprising: a printed circuit board, a heat sink, a pump laser, a first half plug-in member of an optical connector, a second half plug-in member of an electrical connector and a reel having an optical fiber wrapped there around. The heat sink is substantially parallel to the printed circuit board and is separated from the printed circuit board by spacers. The pump laser is connected to one side of the heat sink, which has a plurality of fins on an opposite side from where the pump laser is connected. The first half plug-in member of the optical connector and the second half plug-in member of the electrical connector are each secured to the printed circuit board and are located at an insertion end of the pump laser card assembly. The reel is disposed between the printed circuit board and the heat sink and the optical fiber wrapped around the reel has a first end connected to the pump laser and a second end connected to the first half plug-in member of the optical connector. The detachable plug-in pump laser card assembly is plugged into a port located on a base plate of the optical fiber amplifier, where the first half plug-in member of the optical connector optically engages with a mating member and where the second half plug-in member of the electrical connector electrically engages with a mating member.
摘要翻译： 一种用于放置在光纤放大器中的可拆卸插入式泵激光卡组件，包括：印刷电路板，散热器，泵浦激光器，光学连接器的第一半插入元件，第二半插件 电连接器的构件和具有缠绕在其周围的光纤的卷轴。 散热器基本上平行于印刷电路板，并且通过间隔件与印刷电路板分离。 泵浦激光器连接到散热器的一侧，该散热器在与泵激光器连接的相对侧上具有多个散热片。 光连接器的第一半插入件和电连接器的第二半插入件均固定到印刷电路板上，并位于泵激光卡组件的插入端。 卷轴设置在印刷电路板和散热器之间，并且缠绕在卷轴上的光纤具有连接到泵浦激光器的第一端和连接到光学连接器的第一半插入件的第二端。 可拆卸的插入式泵激光卡组件被插入位于光纤放大器的底板上的端口中，其中光学连接器的第一半插入件与匹配构件光学地接合，并且其中第二半插塞 - 电连接器的构件与配合构件电接合。
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公开(公告)号：US5361319A
公开(公告)日：1994-11-01
申请号：US830692
申请日：1992-02-04
CPC分类号： H04B10/25253 , G02B6/02261 , G02B6/0228 , G02B6/03627 , G02B6/03644 , G02B6/03666 , G02B6/29377 , C03B2203/36
摘要： Disclosed is a family of dispersion compensating optical fibers that are adapted for use with conventional single-mode transmission fibers that are optimized for zero dispersion operation at a wavelength in the range from 1290 nm to 1330 nm to form a transmission link suitable for low dispersion operation in the 1520-1565 nm wavelength window. The dispersion compensating fibers are capable of providing a dispersion more negative than -20 ps/nm-km and attenuation less than 1 dB/km at wavelengths in the 1520-1565 nm region. Certain of the dispersion compensating fibers also exhibit a dispersion versus wavelength relationship having a negative slope in the 1520-1565 nm region, to compensate for the dispersion versus wavelength slope of the transmission fiber. The dispersion compensating fiber can be advantageously combined with a fiber amplifier to form a compensator that is adapted to overcome attenuation introduced into the system by the dispersion compensating fiber. In one embodiment, the dispersion compensating fiber is also a distributed fiber amplifier.
摘要翻译： 公开了一种适用于常规单模传输光纤的色散补偿光纤系列，其针对在1290nm至1330nm范围内的波长的零色散操作进行了优化，以形成适合于低色散操作的传输链路 在1520-1565 nm波长窗口。 色散补偿光纤能够在1520-1565nm区域的波长处提供比-20ps / nm-km更小的衰减和小于1dB / km的衰减。 某些色散补偿光纤还表现出在1520-1565nm区域具有负斜率的色散相对波长关系，以补偿传输光纤的色散对波长斜率。 色散补偿光纤可以有利地与光纤放大器组合以形成补偿器，该补偿器适于克服由色散补偿光纤引入到系统中的衰减。 在一个实施例中，色散补偿光纤也是分布式光纤放大器。
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公开(公告)号：US5331449A
公开(公告)日：1994-07-19
申请号：US31633
申请日：1993-03-15
IPC分类号： H04B10/17 , H04B10/207 , H04J14/02 , H01S3/00
CPC分类号： H04B10/27 , H04B10/272 , H04B10/291 , H04B10/2912
摘要： The use of a doped optical fiber amplifier enables the transmission of multi-channel AM-VSB television signals. An Erbium doped fiber amplifier is disclosed. The amplifier is also useful for reducing second order distortion products produced in an amplitude modulated subcarrier optical communication system. The amplifier may be used in a tree and branch structure optical fiber television network.
摘要翻译： 使用掺杂的光纤放大器能够传输多通道AM-VSB电视信号。 公开了掺铒光纤放大器。 放大器还可用于减小在幅度调制副载波光通信系统中产生的二阶失真产物。 该放大器可用于树和分支结构的光纤电视网络。
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公开(公告)号：US06839163B1
公开(公告)日：2005-01-04
申请号：US09387961
申请日：1999-09-01
CPC分类号： H01S3/06704
摘要： An apparatus and method for making n different types of optical amplifiers on one manufacturing line, n being equal to 2 or more. The method includes providing a supply of at least four functional groups of subunits for each of the circuits which comprise each of the optical amplifiers to be made, where at least one functional group contains at least n different types of sub-units, and where each of the sub-units in three of the functional groups includes a pluggable optical connector half and where each of the sub-units of the fourth of the functional groups includes three pluggable optical connector halves. The method further includes selecting a specific sub-unit from each of the four functional groups and plugging together each of the selected subunits to form an optical amplifier having the desired specification.
摘要翻译： 在一条生产线上制造n种不同类型的光放大器的装置和方法，n等于2或更大。 该方法包括为包括要制造的每个光放大器的每个电路提供至少四个子单元的功能组的供应，其中至少一个功能组包含至少n个不同类型的子单元，并且其中每个 三个功能组中的子单元包括可插拔光连接器半部，其中第四功能组的每个子单元包括三个可插拔光连接器半部。 该方法还包括从四个功能组中的每一个中选择一个特定的子单元，并将所选择的每个子单元插入到一起以形成具有所需规范的光放大器。
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公开(公告)号：US06731839B2
公开(公告)日：2004-05-04
申请号：US10263944
申请日：2002-10-03
IPC分类号： G02B634
CPC分类号： G02B6/29307 , C03B19/02 , C03B32/00 , C03B2201/21 , C03B2201/31 , C03C3/064 , C03C3/091 , C03C4/04 , C03C4/085 , C03C17/3411 , C03C23/00 , G02B6/12007 , G02B6/124 , G02B6/125 , G02B6/2931 , G02B6/29311 , G02B6/29319 , G02B6/29328 , G02B6/29329 , G02B2006/12147
摘要： The present invention provides photonic devices utilized in optical telecommunications. The photonic devices include photosensitive bulk glass bodies which contain Bragg gratings, particularly with the ultraviolet photosensitive bulk glass bodies directing optical telecommunications wavelength range bands. Preferably the ultraviolet photosensitive bulk glass bodies are batch meltable alkali boro-alumino-silicate bulk glass bodies. One embodiment of the invention relates to an optical element including a transparent photosensitive bulk glass having formed therein a non-waveguiding Bragg grating; and a optical element optical surface for manipulating light. Desirably, the photosensitive bulk glass has a 250 nm absorption less than 10 dB/cm.
摘要翻译： 本发明提供了在光通信中使用的光子器件。 光子器件包括含有布拉格光栅的感光体玻璃体，特别是引导光通信波长范围带的紫外感光体玻璃体。 优选地，紫外线感光体玻璃体是可分批熔融的碱金属硼铝硅酸盐块状玻璃体。 本发明的一个实施例涉及一种包括其中形成有非波导布拉格光栅的透明感光体玻璃的光学元件; 以及用于操纵光的光学元件光学表面。 理想地，感光体玻璃具有小于10dB / cm的250nm吸收。
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10.发明授权
公开(公告)号：US6134047A
公开(公告)日：2000-10-17
申请号：US55332
申请日：1998-04-06
CPC分类号： H04B10/2941 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/0018 , H04Q2011/0024 , H04Q2011/0026 , H04Q2011/0075
摘要： A multichannel fiber optic communication network incorporates multichannel fiber optical amplifiers having different functions but designed to use substantially identical gain flattening filters. This is achieved by designing the amplifiers to have total insertion losses such that their respective internal gains (internal gain=net gain+total insertion loss) are substantially the same, most preferably within 1 dB.
摘要翻译： 多通道光纤通信网络包括具有不同功能的多通道光纤放大器，但被设计为使用基本相同的增益平坦化滤波器。 这通过将放大器设计成具有总插入损耗来实现，使得它们各自的内部增益（内部增益=净增益+总插入损耗）基本相同，最优选在1dB以内。
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