专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4738503A In-line fiber optic memory 失效
标题翻译：在线光纤存储器
公开(公告)号：US4738503A
公开(公告)日：1988-04-19
申请号：US828782
申请日：1986-02-12
申请人： Emmanuel Desurvire , Michel J. F. Digonnet , Herbert J. Shaw
发明人： Emmanuel Desurvire , Michel J. F. Digonnet , Herbert J. Shaw
IPC分类号： G02B6/00 , G02B6/24 , G02B6/28 , G02F1/35 , G11C21/00 , H01S3/00 , H01S3/30 , G02B5/172
CPC分类号： G02B6/24 , G02B6/2821 , G02B6/2861 , G11C21/00 , H01S3/0057 , H01S3/302 , G02F2203/54 , H01S2301/08 , Y10S359/90
摘要： A fiber optic recirculating memory comprises a splice-free length of optical fiber which forms a loop that is optically closed by means of a fiber optic coupler. The coupler couples an optical signal input pulse to the loop for circulation therein, and outputs a portion of the signal pulse on each circulation to provide a series of output pulses. A pump source is included to pump the fiber loop with a pump signal having sufficient intensity to cause stimulated Raman scattering in the fiber loop, and thereby cause amplification of the circulating signal pulse. The fiber characteristics, coupler characteristics, and a pump power are selected to yield a Raman gain which compensates for the total round-trip losses in the fiber loop, so as to provide an output pulse train of constant amplitude pulses. The invention may be implemented utilizing a standard coupler with a pump signal modulation technique. The pump signal is input to the loop as a series of pulses having a duration and a periodicity chosen to prevent overlap of recirculating pump pulses with input pump pulses until at least two circulations of the loop, which minimizes pump power fluctuations and will therefore enhance output signal stability.
摘要翻译：光纤再循环存储器包括无接头长度的光纤，其形成通过光纤耦合器光闭合的环路。耦合器将光信号输入脉冲耦合到环路以在其中循环，并且在每个循环上输出信号脉冲的一部分以提供一系列输出脉冲。包括泵浦源以用具有足够强度的泵浦信号泵送光纤环，以在光纤回路中引起受激拉曼散射，从而引起循环信号脉冲的放大。选择光纤特性，耦合器特性和泵浦功率以产生拉曼增益，其补偿光纤环路中的总往返损耗，从而提供恒定幅度脉冲的输出脉冲串。本发明可以利用具有泵浦信号调制技术的标准耦合器来实现。泵浦信号作为一系列具有持续时间和周期性的脉冲输入到循环中，以防止循环泵浦脉冲与输入泵浦脉冲的重叠，直到循环的至少两个循环，这最小化泵浦功率波动并且因此将增强输出信号稳定。

2. 发明授权

US4815804A In-line fiber optic memory and method of using same 失效
标题翻译：在线光纤存储器及其使用方法
公开(公告)号：US4815804A
公开(公告)日：1989-03-28
申请号：US123123
申请日：1987-11-20
申请人： Emmanuel Desurvire , Michel J. F. Digonnet , H. J. Shaw
发明人： Emmanuel Desurvire , Michel J. F. Digonnet , H. J. Shaw
IPC分类号： G02B6/28 , H01S3/00 , H01S3/30 , G02B6/26 , G11C21/00 , H04B9/00
CPC分类号： H01S3/0057 , G02B6/2861 , H01S3/302 , G02F2203/54 , H01S2301/08 , Y10S359/90
摘要： A fiber optic recirculating memory comprises a splice-free length of optical fiber which forms a loop that is optically closed by means of a fiber optic coupler. The coupler couples an optical signal input pulse to the loop for circulation therein, and outputs a portion of the signal pulse on each circulation to provide a series of output pulses. A pump source is included to pump the fiber loop with a pump signal having sufficient intensity to cause stimulated Raman scattering in the fiber loop, and thereby cause amplification of the circulating signal pulse. The fiber characteristics, coupler characteristics, and pump power are selected to yield a Raman gain which compensates for the total round-trip losses in the fiber loop, so as to provide an output pulse train of constant amplitude pulses. The invention may be implemented utilizing either a standard coupler or a multiplexing coupler. The multiplexing coupler advantageously permits independent selection of the coupling ratios for the pump signal and signal pulse, thereby allowing these coupling ratios to be selected for minimum loop loss and maximum pumping efficiency.
摘要翻译：光纤再循环存储器包括无接头长度的光纤，其形成通过光纤耦合器光闭合的环路。耦合器将光信号输入脉冲耦合到环路以在其中循环，并且在每个循环上输出信号脉冲的一部分以提供一系列输出脉冲。包括泵浦源以用具有足够强度的泵浦信号泵送光纤环，以在光纤回路中引起受激拉曼散射，从而引起循环信号脉冲的放大。选择光纤特性，耦合器特性和泵浦功率以产生拉曼增益，其补偿光纤回路中的总往返损耗，从而提供恒定幅度脉冲的输出脉冲串。本发明可以利用标准耦合器或复用耦合器来实现。多路复用耦合器有利地允许独立地选择泵浦信号和信号脉冲的耦合比，从而允许选择这些耦合比以实现最小的环路损耗和最大的泵浦效率。

3. 发明授权

US4708421A In-line fiber optic memory 失效
标题翻译：在线光纤存储器
公开(公告)号：US4708421A
公开(公告)日：1987-11-24
申请号：US699853
申请日：1985-02-08
申请人： Emmanuel Desurvire , Michel J. F. Digonnet , H. J. Shaw
发明人： Emmanuel Desurvire , Michel J. F. Digonnet , H. J. Shaw
IPC分类号： G11C21/00 , G02B6/00 , G02B6/28 , G02B6/287 , G02F1/35 , H01S3/00 , H01S3/30 , G02B5/172
CPC分类号： G02B6/2861 , H01S3/0057 , H01S3/302 , G02F2203/54 , H01S2301/08 , Y10S359/90
摘要： A fiber optic recirculating memory comprises a splice-free length of optical fiber which forms a loop that is optically closed by means of a fiber optic coupler. The coupler couples an optical signal input pulse to the loop for circulation therein, and outputs a portion of the signal pulse on each circulation to provide a series of output pulses. A pump source is included to pump the fiber loop with a pump signal having sufficient intensity to cause stimulated Raman scattering in the fiber loop, and thereby cause amplification of the circulating signal pulse. The fiber characteristics, coupler characteristics, and pump power are selected to yield a Raman gain which compensates for the total round-trip losses in the fiber loop, so as to provide an output pulse train of constant amplitude pulses. The invention may be implemented utilizing either a standard coupler or a multiplexing coupler. The multiplexing coupler advantageously permits independent selection of the coupling ratios for the pump signal and signal pulse, thereby allowing these coupling ratios to be selected for minimum loop loss and maximum pumping efficiency.
摘要翻译：光纤再循环存储器包括无接头长度的光纤，其形成通过光纤耦合器光闭合的环路。耦合器将光信号输入脉冲耦合到环路以在其中循环，并且在每个循环上输出信号脉冲的一部分以提供一系列输出脉冲。包括泵浦源以用具有足够强度的泵浦信号泵送光纤环，以在光纤回路中引起受激拉曼散射，从而引起循环信号脉冲的放大。选择光纤特性，耦合器特性和泵浦功率以产生拉曼增益，其补偿光纤回路中的总往返损耗，从而提供恒定幅度脉冲的输出脉冲串。本发明可以利用标准耦合器或复用耦合器来实现。多路复用耦合器有利地允许独立地选择泵浦信号和信号脉冲的耦合比，从而允许选择这些耦合比以实现最小的环路损耗和最大的泵浦效率。

4. 发明授权

US4952059A Reentrant fiber raman gyroscope 失效
标题翻译：可重入纤维拉曼陀螺仪
公开(公告)号：US4952059A
公开(公告)日：1990-08-28
申请号：US180596
申请日：1988-04-06
申请人： Emmanuel Desurvire , Byoung Y. Kim , Herbert J. Shaw
发明人： Emmanuel Desurvire , Byoung Y. Kim , Herbert J. Shaw
IPC分类号： G01C19/64
CPC分类号： G01C19/64
摘要： A re-entrant fiber optic interferometer comprises an optical fiber, forming a loop for recirculating an optical signal in the loop. The loop of optical fiber comprises an active material which emits photons at a first wavelength and responds to pumping in a second wavelength. Signal light at the first wavelength is input to the loop for circulation therein, and pump light at the second wavelength is input to the loop to optically pump the active material to emit light at the first wavelength. The invention also includes a multiplexing coupler which has different coupling ratios for the pump light and the signal light, such that only a fraction of the signal light is coupled out of the loop on each circulation about the loop, but substantially all of the pump light is coupled out of the loop after a single circulation, thereby suppressing pump phase noise in the loop.
摘要翻译：入侵者光纤干涉仪包括光纤，形成用于使环路中的光信号循环的环路。光纤的环路包括发射第一波长的光子并响应于第二波长的泵浦的活性材料。将第一波长的信号光输入到循环中循环，并将第二波长的泵浦光输入到环路以光学泵浦活性物质以发射第一波长的光。本发明还包括对泵浦光和信号光具有不同耦合比的多路复用耦合器，使得只有一部分信号光在围绕环路的每个循环上耦合到环路外，而基本上所有的泵浦光在单循环之后被耦合到环路外，从而抑制回路中的泵相位噪声。

5. 发明授权

US4794598A Synchronously pumped ring fiber Raman laser 失效
标题翻译：同步泵浦环形光纤拉曼激光器
公开(公告)号：US4794598A
公开(公告)日：1988-12-27
申请号：US888170
申请日：1986-07-18
申请人： Emmanuel Desurvire , Herbert J. Shaw
发明人： Emmanuel Desurvire , Herbert J. Shaw
IPC分类号： H01S3/00 , H01S3/06 , H01S3/094 , H01S3/16 , H01S3/30
CPC分类号： H01S3/094026 , H01S3/302
摘要： An all-fiber ring laser has a single, uninterrupted length of single-mode optical fiber that is formed into a loop by using an optical coupler. Pump signal pulses at a first optical wavelength are introduced into one end of the optical fiber. Each pump pulse propagates through the loop formed in the fiber and then exits the fiber. The pump signal pulses excite the molecules of the optical fiber to cause them to go to a higher, unstable energy level. When the molecules return to a lower energy level, photons are emitted at a second optical frequency that has a wavelength that is shifted from the wavelength of the pump signal to form laser signal pulses. The coupler is a multiplexing coupler that has a first coupling ratio at the wavelength of the pump signal and has a second coupling ratio at the wavelength of the emitted optical signal. The first coupling ratio is preferably close to zero and the second coupling coefficient is greater than 0.5. The laser optical signal recirculates in the loop to stimulate further emission of optical energy at the shifted wavelength in phase with the recirculating optical signal. Each pump pulse is timed to enter the optical fiber loop in synchronism with the recirculating laser signal pulse so as to excite the fiber molecules so as to amplify the recirculating signal pulses. The laser signal has a loop transit time related to the time interval between pump pulses such that a multiple of the loop transit time is substantially equal to a multiple of the time interval.
摘要翻译：全光纤环形激光器具有单个不间断长度的单模光纤，其通过使用光耦合器形成环路。在第一光波长的泵浦信号脉冲被引入光纤的一端。每个泵浦脉冲通过形成在光纤中的环路传播，然后离开光纤。泵浦信号脉冲激发光纤的分子，使它们进入更高，不稳定的能级。当分子返回到较低的能量水平时，光子以具有从泵浦信号的波长偏移的波长的第二光学频率发射以形成激光信号脉冲。耦合器是在泵浦信号的波长处具有第一耦合比并且在所发射的光信号的波长处具有第二耦合比的多路耦合器。第一耦合比优选接近零，第二耦合系数大于0.5。激光光信号在环路中再循环以刺激与再循环光信号同相的移动波长的光能的进一步发射。每个泵浦脉冲被定时以与循环激光信号脉冲同步地进入光纤回路，以激发光纤分子，以放大再循环信号脉冲。激光信号具有与泵脉冲之间的时间间隔相关的回路通过时间，使得循环通过时间的倍数基本上等于时间间隔的倍数。

6. 发明授权

US06931213B2 Regenerator for a wavelength division multiplex transmission system 失效
标题翻译：用于波分复用传输系统的再生器
公开(公告)号：US06931213B2
公开(公告)日：2005-08-16
申请号：US09768153
申请日：2001-01-24
申请人： Emmanuel Desurvire
发明人： Emmanuel Desurvire
IPC分类号： H04B10/299 , H04J14/00 , H04J14/02 , H04L7/00 , H04B10/02 , H04B10/12 , H04B10/16 , H04B10/20
CPC分类号： H04B10/299 , H04B2210/258 , H04J14/02 , H04L7/0075
摘要： The invention relates to wavelength division multiplex fiber optic transmission systems. It proposes a regenerator including a demultiplexer for separating the signals of various channels, a plurality of optical modulators each receiving signals from the demultiplexer and a modulation clock from a clock distribution unit, and a multiplexer combining the signals modulated by the modulators. The clock distribution unit includes a reference clock and, for each modulator, means for synchronizing the phase of a copy of the reference clock with the signals applied to the modulator. A phase-locked loop can be used for phase synchronization, with a phase shifter controlled in accordance with the average power of the signals at the output of the modulator. The invention enables only low-frequency components to be used to generate modulation clocks from a single reference clock.
摘要翻译：本发明涉及波分复用光纤传输系统。它提出了一种再生器，包括用于分离各种信道的信号的解复用器，多个光调制器，每个光调制器都从解复用器接收信号，调制时钟来自时钟分配单元，以及多路复用器组合由调制器调制的信号。时钟分配单元包括参考时钟，并且对于每个调制器，用于使参考时钟的副本的相位与施加到调制器的信号同步的装置。锁相环可用于相位同步，移相器根据调制器输出端的信号的平均功率进行控制。本发明仅能够使用低频分量从单个参考时钟产生调制时钟。

7. 发明授权

US06373608B1 Method and device for on-line regeneration of a signal transmitted by wavelength division multiplexed solitons and optical telecommunication system comprising such a regenerating device 有权
标题翻译：用于在线再生由波分复用孤子发射的信号的方法和装置以及包括这种再生装置的光通信系统
公开(公告)号：US06373608B1
公开(公告)日：2002-04-16
申请号：US09155901
申请日：1999-02-18
申请人： Emmanuel Desurvire , Jean-Pierre Hamaide
发明人： Emmanuel Desurvire , Jean-Pierre Hamaide
IPC分类号： H04B1000
CPC分类号： H04B10/25077 , H04B2210/258 , H04J14/02
摘要： The invention enables wavelength division multiplexed (WDM) solitons conveyed by an optical fiber to be regenerated synchronously. The invention consists in using optical delay lines, in particular of the photorefractive filter type, prior to the regenerators so as to resynchronize a subset of the m soliton channels, and in placing the regenerator at a position where the n-m other soliton channels are naturally synchronized.
摘要翻译：本发明使得由光纤传送的波分复用（WDM）孤子同步再生。本发明包括在再生器之前使用特别是光折射滤光器类型的光学延迟线，以便重新同步m个孤子通道的子集，以及将再生器放置在nm其他孤子通道自然同步的位置。

8. 发明授权

US5903368A Method and a system for optical communications with passive routing 失效
标题翻译：无源路由光通信的方法和系统
公开(公告)号：US5903368A
公开(公告)日：1999-05-11
申请号：US784518
申请日：1997-01-17
申请人： Emmanuel Desurvire , Jose Chesnoy
发明人： Emmanuel Desurvire , Jose Chesnoy
IPC分类号： H04B10/00 , H04B10/18 , H04J14/00 , H04J14/04 , H04J14/06 , H04Q11/00
CPC分类号： H04B10/25077 , H04Q11/0003 , H04Q2011/0013 , H04Q2011/0022 , H04Q2011/0026 , H04Q2011/0035 , H04Q2011/0041 , H04Q2011/0045
摘要： Optical pulses carrying information to be conveyed are routed, for each pulse, by the intensity of the pulse. The pulses may be solitons. The invention is particularly applicable to long distance communications.
摘要翻译：携带要传送的信息的光脉冲针对每个脉冲通过脉冲的强度被路由。脉冲可以是孤子。本发明特别适用于长距离通信。

9. 发明授权

US06556322B1 Method of detecting one or more free channels in an optical time-division multiplex, a device for implementing it and the use of the device 失效
标题翻译：在光时分复用中检测一个或多个空闲信道的方法，用于实现它的设备和该设备的使用
公开(公告)号：US06556322B1
公开(公告)日：2003-04-29
申请号：US09240589
申请日：1999-02-01
申请人： Emmanuel Desurvire
发明人： Emmanuel Desurvire
IPC分类号： H04J1408
CPC分类号： H04J14/083
摘要： A method of detecting one or more free channels in a time-division multiplexed optical signal which may be used for insertion signals in switching nodes of optical communication networks. The method includes sampling successive optical pulses from at least one of said channels, measuring the average optical power of the sampled pulses during a predetermined time period, and generating a detection signal if said average optical power is less than or equal to a predetermined threshold value.
摘要翻译：一种在光通信网络的交换节点中用于插入信号的时分多路复用光信号中检测一个或多个空闲信道的方法。该方法包括从至少一个所述通道对连续的光脉冲进行采样，在预定时间段内测量采样脉冲的平均光功率，如果所述平均光功率小于或等于预定阈值，则产生检测信号。

10. 发明授权

US06204960B1 Quasi-distributed amplification in a fiber optic soliton signal transmission system 失效
标题翻译：光纤孤子信号传输系统中的准分布放大
公开(公告)号：US06204960B1
公开(公告)日：2001-03-20
申请号：US09348003
申请日：1999-07-06
申请人： Emmanuel Desurvire
发明人： Emmanuel Desurvire
IPC分类号： H01S330
CPC分类号： H04B10/25077 , H04B10/291 , H04B10/2931
摘要： The invention concerns a wavelength-division multiplex soliton signal fiber optic transmission system; to reduce the effects of collision jitter on the soliton channels, it proposes quasi-distributed amplification combining lumped amplification and distributed amplification. In this way it is possible to combine pumping of a lightly doped line fiber an dumped amplification by an EDFA in the repeaters. Reduncant and common pumping means are advantageously used for the lumped amplification and the distributed amplification and the gain of the lumped amplification is advantageously controlled automatically.
摘要翻译：本发明涉及一种波分复用孤子信号光纤传输系统; 为了减少碰撞抖动对孤子通道的影响，提出了组合放大和分布放大的准分布放大。以这种方式，可以将轻掺杂线纤维的泵送与反馈器中的EDFA的倾倒放大相结合。有利地，冗余和公共泵送装置用于集总放大和分布式放大，并且有利地自动地控制集总放大的增益。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式