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91. 发明申请

US20040036956A1 Wider dynamic range to a FBG stabilized pump 有权
标题翻译：更宽的动态范围到FBG稳定泵
公开(公告)号：US20040036956A1
公开(公告)日：2004-02-26
申请号：US10610510
申请日：2003-06-30
申请人： JDS Uniphase Corporation
发明人： Erji Mao , Stuart MacCormack , Greg Roth , Steven Sanders
IPC分类号： H01S003/00 , H04B010/12
CPC分类号： H04B10/296 , H01S3/1305 , H01S3/1312 , H01S3/302 , H04B10/2916
摘要： The present application relates to a Raman amplifier having an increased dynamic range, and particularly for laser pump sources and a method of pumping Raman fiber amplifiers over a greater dynamic range. In a multi-channel optical system, optical amplifiers must be able to provide gains over a large dynamic range, which is determined by the distribution of node-to-node distances in the network, as well as the number of channels. The present invention has found that the dynamic range of a Raman amplifier can be significantly increased by using pulse width modulation to pulse pump current at or near the minimum current stability threshold, in order to produce lower power output. The duty cycle of the pulsed current is selected to achieve a time-averaged operating condition, thus the time averaged pump power can be reduced in a linear fashion well below the capability of a continuous wave system.
摘要翻译：本申请涉及具有增加的动态范围的拉曼放大器，特别是用于激光泵浦源的拉曼放大器以及在更大动态范围内泵浦拉曼光纤放大器的方法。在多通道光学系统中，光放大器必须能够在大的动态范围内提供增益，这取决于网络中节点到节点间距离的分布以及信道数量。本发明已经发现，为了产生较低的功率输出，通过使脉冲宽度调制到等于或接近最小电流稳定阈值的脉冲泵电流，可以显着提高拉曼放大器的动态范围。选择脉冲电流的占空比以实现时间平均的操作条件，因此可以以远低于连续波系统的能力的线性方式减小时间平均的泵浦功率。

92. 发明申请

US20040028415A1 Apparatus and method for measuring the dispersion of a fiber span 有权
标题翻译：用于测量纤维跨度分散的装置和方法
公开(公告)号：US20040028415A1
公开(公告)日：2004-02-12
申请号：US10427897
申请日：2003-04-30
发明人： Michael H. Eiselt
IPC分类号： H04B010/12
CPC分类号： H04B10/2513
摘要： The invention pertains to optical fiber transmission systems, and is particularly relevant to transmission of large volumes of data over long distances at high rates. An improved apparatus and method for measuring dispersion in a fiber span is disclosed. In particular, the invention teaches a highly accurate technique for measuring the fiber dispersion at a single wavelength. Transmitter and receiver structure and data processing algorithms are disclosed. An improved apparatus and method for measuring dispersion in a fiber span. In particular, the invention teaches a highly accurate technique for measuring the fiber dispersion at a single wavelength. Transmitter and receiver structure and data processing algorithms are disclosed.
摘要翻译：本发明涉及光纤传输系统，并且特别涉及以高速率长距离传输大量数据。公开了一种用于测量光纤跨度中的色散的改进的装置和方法。特别地，本发明教导了用于在单个波长下测量纤维分散体的高精度技术。公开了发射机和接收机结构和数据处理算法。一种用于测量纤维跨度中的色散的改进的装置和方法。特别地，本发明教导了用于在单个波长下测量纤维分散体的高精度技术。公开了发射机和接收机结构和数据处理算法。

93. 发明申请

US20040012844A1 Light source unit and wavelength stabilizing control method, exposure apparatus and exposure method, method of making exposure apparatus, and device manufacturing method and device 有权
标题翻译：光源单元和波长稳定控制方法，曝光装置和曝光方法，制造曝光装置的方法以及装置制造方法和装置
公开(公告)号：US20040012844A1
公开(公告)日：2004-01-22
申请号：US10618590
申请日：2003-07-15
申请人： Nikon Corporation
发明人： Tomoko Ohtsuki , Soichi Owa , Niichi Atsumi , Masaaki Doi
IPC分类号： H04B010/12 , H01S003/00
CPC分类号： H01S3/1301 , B23K26/064 , B23K26/0643 , B23K26/0648 , B23K26/0665 , G02F2001/354 , G03F7/70058 , G03F7/70566 , G03F7/70575 , H01S3/06758 , H01S3/13 , H01S3/1305 , H01S3/1312 , H01S3/2383
摘要： The light source unit (16) comprises a single wavelength oscillation light source (160A), a light generating portion (160) which has an optical modulator (160C) converting and emitting light from the light source into a pulse light, a light amplifying portion (161) made up of an optical fiber group that each has a fiber amplifier to amplify the pulse light from the optical modulator, and a light amount controller (16C). The light amount controller (16C) performs a step-by-step light amount control by individually turning on/off the light output of each fiber making up the optical fiber group, and a light amount control of controlling at least either of the frequency or the peak power of the emitted pulse light of the optical modulator. Accordingly, in addition to the step-by-step light amount control, fine adjustment of the light amount in between the steps becomes possible due to the control of at least either the frequency or the peak power of the pulse light, and if the set light amount is within a predetermined range, the light amount can be made to coincide with the set light amount.
摘要翻译：光源单元（16）包括单波长振荡光源（160A），具有将来自光源的光转换成脉冲光的光调制器（160C）的发光部（160），光放大部（161），其由具有放大来自所述光调制器的脉冲光的光纤放大器的光纤组和光量控制器（16C）构成。光量控制器（16C）通过单独地打开/关闭构成光纤组的每根纤维的光输出来执行逐步光量控制，以及光量控制，其控制频率或光调制器的发射脉冲光的峰值功率。因此，除了分步光量控制之外，由于脉冲光的频率或峰值功率的至少一个的控制，能够对步骤之间的光量进行微调，如果设定光量在预定范围内，可以使光量与设定光量一致。

94. 发明申请

US20040004756A1 Control scheme for long wavelength channels in wideband WDM optical fiber transmission system 失效
标题翻译：宽带WDM光纤传输系统中长波长信道的控制方案
公开(公告)号：US20040004756A1
公开(公告)日：2004-01-08
申请号：US10610527
申请日：2003-07-02
申请人： FUJITSU LIMITED
发明人： Rainer Hainberger , Takafumi Terahara
IPC分类号： H01S003/00 , H04B010/12
CPC分类号： H04B10/2972 , H01S3/06754 , H01S3/10007 , H01S3/302 , H04B10/2916 , H04B2210/258
摘要： There is provided in an optical amplifier device used for a system in which a power transfer takes place from comparatively short wavelength signal to a comparatively long wavelength signal. The device includes an amplifier stage coupled to an optical transmission medium, a monitor monitoring a status of a first band; and a pump light source unit supplying at least one first pump light to the optical transmission medium on the basis of the status of the first band monitored, so that the above at least one first pump light supplies additional power to longer wavelength channels related to the status of the first band.
摘要翻译：提供在用于系统的光放大器装置中，其中从较短的波长信号到比较长的波长信号发生功率传输。该装置包括耦合到光传输介质的放大器级，监视第一频带的状态的监视器; 以及泵光源单元，其基于所监视的所述第一频带的状态向所述光传输介质提供至少一个第一泵浦光，使得所述至少一个第一泵浦光向与所述光传输介质相关的较长波长信道提供附加功率第一乐队的状态

95. 发明申请

US20030206335A1 Erbium-doped fiber amplifier and integrated module components 有权
标题翻译：掺铒光纤放大器和集成模块组件
公开(公告)号：US20030206335A1
公开(公告)日：2003-11-06
申请号：US10138033
申请日：2002-05-03
申请人： Lightwaves 2020, Inc.
发明人： Jing-Jong Pan , Xiangdong Qiu , Kejian Guan , Mingjie Zhang
IPC分类号： G02B006/42 , H04B010/12
CPC分类号： G02B6/4201 , G02B6/2746 , G02B6/29361 , G02B6/29389 , G02B6/327 , G02B6/4204 , G02B6/4206 , G02B6/4208 , G02B6/4209 , G02B6/4215 , G02B6/424 , G02B6/4263 , G02B6/4269 , G02B6/4286 , H01S3/005 , H01S3/0064 , H01S3/0078 , H01S3/06704 , H01S3/06754 , H01S3/06766 , H01S3/094003 , H01S3/094053 , H01S3/09415 , H01S3/1301 , H01S3/1305 , H01S3/1312 , H01S3/1608 , H01S5/0064 , H01S5/02212 , H01S5/02284 , H01S5/02296 , H01S5/0683
摘要： An EDFA with integrated input and output modules is presented. The integrated input module has a packaged pump laser diode mounted to the metal EDFA package to provide a heat sink for the pump laser diode which sends the pump laser light over a optical fiber section connected to the amplifying erbium-doped optical fiber section. The fiber section is formed from an optical fiber which better matches the transmission modes in the erbium-doped optical fiber section and has an end subsection of the single mode fiber for a larger numerical aperture. Collimating lenses also increase the coupling efficiency of the laser diode to the erbium-doped fiber section. The integrated output module has a photodiode with a tap filter to monitor the output power of the EDFA, an optical isolator to prevent interference in the erbium-doped optical fiber section. With a twin optical isolator, the integrated input and output modules can be arranged in different ways and combinations with the erbium-doped optical fiber section. The resulting EDFAs can be manufactured relatively inexpensively into an very small packages compared to current EDFA packages.
摘要翻译：介绍了具有集成输入和输出模块的EDFA。集成输入模块具有安装在金属EDFA封装上的封装泵激光二极管，为泵激光二极管提供散热器，泵浦激光二极管将泵浦激光发射到与放大掺铒光纤部分连接的光纤部分上。光纤部分由光纤形成，该光纤更好地匹配掺铒光纤部分的传输模式，并且具有用于更大数值孔径的单模光纤的端部部分。准直透镜还增加了激光二极管与掺铒光纤部分的耦合效率。集成输出模块具有带有抽头滤波器的光电二极管，用于监视EDFA的输出功率，光隔离器可防止铒掺杂光纤部分的干扰。使用双光隔离器，集成输入和输出模块可以以掺铒光纤部分的不同方式和组合进行布置。与目前的EDFA封装相比，所得到的EDFA可以相对廉价地制造成非常小的封装。

96. 发明申请

US20030202795A1 Dynamic measurement of and compensation for impairments to optical data communication pulses 有权
标题翻译：对光学数据通信脉冲的损伤的动态测量和补偿
公开(公告)号：US20030202795A1
公开(公告)日：2003-10-30
申请号：US10128939
申请日：2002-04-24
发明人： Hernando Garcia , Daniel Charles Kilper , Jeffrey Matthew Roth , Chunhui Xu
IPC分类号： H04B010/12
CPC分类号： H04B10/2569 , G01J11/00 , H04B10/077 , H04B10/07955
摘要： A photomultiplier module (PMT), preferably a PMT with a gallium arsenide (GaAs) photocathode, is used as a N-photon detector (N is an integer null2). The PMT detects the N-photon absorption rate of an optical signal having a wavelength range extending from 1.0 nullm to an upper wavelength region that increases as the number of photons simultaneously absorbed by the PMT increases beyond two. The N-photon absorption rate is used by a signal compensation apparatus to reduce impairments which affect the rate, such as group velocity dispersion and/or polarization mode dispersion, in a received optical pulse communication signal. The N-photon absorption rate can also be used to determine the optical signal-to-noise ratio of a received optical pulse communication signal, and/or to synchronize a second optical pulse signal with the first optical signal.
摘要翻译：使用优选具有砷化镓（GaAs）光电阴极的PMT的光电倍增管模块（PMT）作为N-光子检测器（N为整数> = 2）。 PMT检测到具有从1.0μm的波长范围延伸到上升波长区域的光信号的N光子吸收率，随着PMT同时吸收的光子数增加超过两个，该波长区域增加。信号补偿装置使用N光子吸收率来减少在接收的光脉冲通信信号中影响速率的损伤，例如组速度色散和/或偏振模色散。 N光子吸收率也可用于确定接收到的光脉冲通信信号的光信噪比和/或使第二光脉冲信号与第一光信号同步。

97. 发明申请

US20030165007A1 Multistage optical amplifier having a fiber-based amplifier stage and a planar waveguide-based amplifier stage 失效
标题翻译：具有基于光纤的放大器级和基于平面波导的放大器级的多级光放大器
公开(公告)号：US20030165007A1
公开(公告)日：2003-09-04
申请号：US10280641
申请日：2002-10-25
发明人： Sergey Frolov , Joseph Shmulovich , Allan James Bruce , Tek-Ming Shen
IPC分类号： H04B010/12
CPC分类号： H01S3/06758 , H01S3/0632 , H01S3/0637 , H01S3/094096 , H01S3/1608
摘要： A multistage optical amplifier includes a fiber amplifier stage having an active optical fiber for imparting gain to an optical signal propagating therethrough and a coupler supplying pump energy to the optical fiber. A planar waveguide amplifier stage is optically coupled to the fiber amplifier stage. The waveguide amplifier including a substrate, an active planar waveguide formed on the substrate for imparting gain to an optical signal propagating therethrough, and at least one waveguide coupler formed on the substrate for coupling pump power to the active planar waveguide.
摘要翻译：多级光放大器包括具有有源光纤的光纤放大器级，用于对通过其传播的光信号赋予增益，以及向光纤提供泵浦能量的耦合器。平面波导放大器级光耦合到光纤放大器级。所述波导放大器包括衬底，形成在所述衬底上的用于对通过其传播的光信号赋予增益的有源平面波导以及形成在所述衬底上的用于将泵浦功率耦合到所述有源平面波导的至少一个波导耦合器。

98. 发明申请

US20030076579A1 System and method for depolarizing optical amplifier pump surces 审中-公开
标题翻译：光放大器泵浦去极化的系统和方法
公开(公告)号：US20030076579A1
公开(公告)日：2003-04-24
申请号：US09982498
申请日：2001-10-18
发明人： Dmitri Foursa , Morten Nissov
IPC分类号： H01S003/00 , H04B010/12
CPC分类号： H01S3/09415 , H01S3/06754 , H01S3/094003 , H01S3/094053 , H01S3/302
摘要： A system and method for depolarizing optical amplifier pump sources. A pump assembly provides a pump assembly output having a polarization state that is normally depolarized. A depolarizing device receives the pump assembly output and provides an output that is depolarized irrespective of the polarization of the pump assembly output.
摘要翻译：一种用于去激光光放大器泵浦源的系统和方法。泵组件提供具有通常去极化的偏振状态的泵组件输出。去极化装置接收泵组件输出，并且提供与泵组件输出的极化无关的去极化的输出。

99. 发明申请

US20030059156A1 Bifurcated optical and power connectivity for ultra long-haul optical communication systems 审中-公开
标题翻译：用于超长距离光通信系统的分叉光学和电源连接
公开(公告)号：US20030059156A1
公开(公告)日：2003-03-27
申请号：US09960699
申请日：2001-09-24
发明人： Lee Daniel Feinberg , M. Imran Hayee , Bo Pedersen
IPC分类号： G02B006/28 , H04B010/12
CPC分类号： H04B10/2916 , H04B10/2941
摘要： An optical communication system is provided comprising a first optical fiber having a first end and a second end, a plurality of line units optically coupled to the first optical fiber for amplification of an optical signal propagating along the first optical fiber, and a power cable for the line units. The power cable is terminated between the first end and the second end of the first optical fiber, preferably at about a midpoint of the first optical fiber.
摘要翻译：提供了一种光通信系统，其包括具有第一端和第二端的第一光纤，多个线单元，其光耦合到第一光纤，用于放大沿着第一光纤传播的光信号;以及电力电缆，线路单位。电力电缆终止在第一光纤的第一端和第二端之间，优选地在第一光纤的中点附近。

100. 发明申请

US20030043433A1 All optical clock recovery 有权
标题翻译：所有光时钟恢复
公开(公告)号：US20030043433A1
公开(公告)日：2003-03-06
申请号：US10191512
申请日：2002-07-10
申请人： Nortel Networks Limited
发明人： John Kenton White
IPC分类号： H04B010/00 , H04B010/12
CPC分类号： H04L7/0075 , H01S5/0656 , H01S5/0657
摘要： All optical clock recovery includes a transmitter for generating an optical timing signal. The transmitter includes a semiconductor laser for the production of a dynamically synchronizable timing signal, the laser having an external resonator for feedback of the timing signal to the laser, the feedback having a delay time greater than a relaxation oscillation time for the laser, and the laser outputting an optical timing signal having a characteristic dynamic. The transmitter supplies the optical timing signal to a receiver configured to receive the timing signal and to synchronize to the laser on receipt of the timing signal, such that the receiver outputs a recovered timing signal having the characteristic dynamic. A number of receivers may be provided in sequence along an optical path, each receiver configured to receive the timing signal originally outputted with the characteristic dynamic from the transmitter, and synchronized to the transmitter on receiving the signal and thereby outputting a recovered timing signal having the characteristic dynamic. All optical clock recovery is provided without increased electronic complexity and avoids thermal drift.
摘要翻译：所有光时钟恢复包括用于产生光学定时信号的发射机。发射机包括用于产生动态可同步的定时信号的半导体激光器，该激光器具有外部谐振器，用于向激光器反馈定时信号，反馈具有大于激光器的弛豫振荡时间的延迟时间，激光输出具有特征动态的光学定时信号。发射机将光学定时信号提供给被配置为接收定时信号并且在接收到定时信号时与激光器同步的接收机，使得接收机输出具有特征动态的恢复的定时信号。可以沿着光路顺序地提供多个接收机，每个接收机被配置为从发射机接收原始以特征动态输出的定时信号，并且在接收到信号时同步到发射机，从而输出恢复的定时信号，特征动态。提供所有光时钟恢复，而不会增加电子复杂性并避免热漂移。

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