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1. 发明授权

US5729372A Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system 失效
公开(公告)号：US5729372A
公开(公告)日：1998-03-17
申请号：US712958
申请日：1996-09-12
申请人： Takafumi Terahara , Terumi Chikama , Masuo Suyama , Takao Naito
发明人： Takafumi Terahara , Terumi Chikama , Masuo Suyama , Takao Naito
IPC分类号： G02F1/35 , H01S3/10 , H04B1/16 , H04B10/2507 , H04B10/2563 , H04B10/29 , H04B10/291 , H04B10/516 , H04B10/61 , H04B10/04
CPC分类号： H04B10/2572 , H04B10/291 , H04B10/2912 , H04B10/2918 , H04B10/2939 , H04B1/163
摘要： The invention provides an optical transmission method and apparatus suitable for use with a terminal station apparatus for an optical communication system for a very long distance of up to several thousands kilometers across an ocean as well as an optical amplification method and apparatus suitable for use with a repeater for an optical communication system. The methods and apparatus are improved in that the excessive loss in an optical amplifier and the variation of the branching ratio are suppressed to suppress the variation of the gain to suppress the polarization dependency of the loss or the gain on a transmission line of the optical communication system. The optical transmission apparatus comprises a depolarized light source for outputting depolarized light, and an external modulator for modulating light from the depolarized light source.

2. 发明授权

US5539566A Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system 失效
标题翻译：光通信系统的光传输方法及装置及光放大方法及装置
公开(公告)号：US5539566A
公开(公告)日：1996-07-23
申请号：US425974
申请日：1995-04-20
申请人： Takafumi Terahara , Terumi Chikama , Masuo Suyama , Takao Naito
发明人： Takafumi Terahara , Terumi Chikama , Masuo Suyama , Takao Naito
IPC分类号： G02F1/35 , H01S3/10 , H04B1/16 , H04B10/2507 , H04B10/2563 , H04B10/29 , H04B10/291 , H04B10/516 , H04B10/61 , H04B10/17 , H04B10/04
CPC分类号： H04B10/2572 , H04B10/291 , H04B10/2912 , H04B10/2918 , H04B10/2939 , H04B1/163
摘要： The invention provides an optical transmission method and apparatus suitable for use with a terminal station apparatus for an optical communication system for a very long distance of up to several thousands kilometers across an ocean as well as an optical amplification method and apparatus suitable for use with a repeater for an optical communication system. The methods and apparatus are improved in that the excessive loss in an optical amplifier and the variation of the branching ratio are suppressed to suppress the variation of the gain to suppress the polarization dependency of the loss or the gain on a transmission line of the optical communication system. The optical transmission apparatus comprises a depolarized light source for outputting depolarized light, and an external modulator for modulating light from the depolarized light source.
摘要翻译：本发明提供一种光传输方法和装置，适用于通过海洋长达几千公里的远距离通信的光通信系统的终端装置，以及适于与中继器用于光通信系统。该方法和装置的改进在于，抑制光放大器中的过度损耗和分支比的变化，以抑制增益的变化，以抑制光通信的传输线上的损耗或增益的极化依赖性系统。光传输装置包括用于输出去偏振光的去极化光源和用于调制来自去偏振光源的光的外部调制器。

3. 发明授权

US06480658B1 Optical fiber transmission line for wavelength division multiplexing transmission system 失效
标题翻译：光纤传输线用于波分复用传输系统
公开(公告)号：US06480658B1
公开(公告)日：2002-11-12
申请号：US09673323
申请日：2000-10-13
申请人： Takao Naito , Masuo Suyama , José Chesnoy , Olivier Gautheron
发明人： Takao Naito , Masuo Suyama , José Chesnoy , Olivier Gautheron
IPC分类号： G02B602
CPC分类号： H04B10/25253
摘要： An optical transmission system for transmitting an optical signal through an optical fiber transmission line includes a first optical fiber transmitting the optical signal and having a first zero-dispersion wavelength shorter than a wavelength of the optical signal, and a second optical fiber transmitting the optical signal from the first optical fiber and having a second zero-dispersion wavelength longer than the wavelength of the optical signal. A first nonlinear effective cross-sectional area of the first optical fiber is larger than a second nonlinear effective cross-sectional area of the second optical fiber.
摘要翻译：用于通过光纤传输线传输光信号的光传输系统包括：传输光信号并具有比光信号的波长短的第一零色散波长的第一光纤;以及传输光信号的第二光纤并且具有比光信号的波长长的第二零色散波长。第一光纤的第一非线性有效截面面积大于第二光纤的第二非线性有效横截面面积。

4. 发明授权

US06204945B1 Signal light outputting apparatus and optical transmission system having signal light outputting apparatus 失效
标题翻译：信号光输出装置和具有信号光输出装置的光传输系统
公开(公告)号：US06204945B1
公开(公告)日：2001-03-20
申请号：US08834211
申请日：1997-04-15
申请人： Hiroyuki Iwata , Masuo Suyama
发明人： Hiroyuki Iwata , Masuo Suyama
IPC分类号： H04J1402
CPC分类号： H04J14/0221 , H04B10/506 , H04B10/564
摘要： The invention provides a signal light outputting apparatus for use for optical communication by wavelength multiplex transmission and an optical transmission system with the same wherein control of powers and/or wavelengths of signal lights to be transmitted can be performed with certainty and the signal lights can be transmitted and received accurately while making transmission characteristics of the signal lights equal to each other. The signal light outputting apparatus includes a plurality of signal light outputting units each including a signal light source and an optical amplifier, an optical combiner for combining signal lights outputted from the signal light outputting units, a signal light power detector for extracting part of signal light combined by the optical combiner to detect powers of the signal light for individual wavelengths corresponding to the signal light wavelengths, and a signal light output control element for controlling signal light outputs of the corresponding optical amplifiers for amplification of the signal lights of the wavelengths in response to the powers of the signal lights of the individual wavelengths detected by the signal light power detector.
摘要翻译：本发明提供了一种用于通过波长多路复用传输进行光通信的信号光输出装置和具有该信号光传输系统的光传输系统，其中可以确定地执行要传输的信号光的功率和/或波长的控制，并且信号灯可以同时使信号光的传输特性彼此相等，发送和接收精确。信号光输出装置包括多个信号光输出单元，每个信号光输出单元包括信号光源和光放大器，用于组合从信号光输出单元输出的信号光的光组合器，用于提取信号光的一部分的信号光功率检测器通过光组合器组合以检测对应于信号光波长的各个波长的信号光的功率;以及信号光输出控制元件，用于控制相应的光放大器的信号光输出，以响应波长的信号光的放大对于由信号光功率检测器检测的各个波长的信号光的功率。

5. 发明授权

US07092149B1 Input monitoring system for optical amplifying repeater 失效
标题翻译：光放大中继器输入监控系统
公开(公告)号：US07092149B1
公开(公告)日：2006-08-15
申请号：US09084787
申请日：1998-05-21
申请人： Shinichirou Harasawa , Hiroyuki Deguchi , Masuo Suyama
发明人： Shinichirou Harasawa , Hiroyuki Deguchi , Masuo Suyama
IPC分类号： H01S3/00
CPC分类号： H04B10/2931 , H01S3/10015 , H01S3/1301 , H04B10/077 , H04B10/07955 , H04B10/2912
摘要： An input monitoring system is provided in an optical amplifying repeater to monitor a level of an optical input signal. A monitored level of the optical input signal is used to detect a fault on an optical transmission path or to control a bias current for a laser diode which emits and supplies an exciting signal for exciting an optical fiber amplifier. To accurately monitor a level of the optical input signal, the input monitoring system comprises an input terminal supplied with the optical input signal, an optical fiber amplifier for amplifying the optical input signal, a first photo diode for detecting and outputting an electric signal corresponding a level of the optical input signal, and an optical switch operatively connected to the input terminal, the optical fiber amplifier and first photo diode for switching the optical input signal alternatively into the optical fiber amplifier and the first photo diode.
摘要翻译：在光放大中继器中提供输入监视系统以监视光输入信号的电平。光输入信号的监视电平用于检测光传输路径上的故障或者控制发射并提供用于激励光纤放大器的激励信号的激光二极管的偏置电流。为了准确地监视光输入信号的电平，输入监视系统包括提供有光输入信号的输入端，用于放大光输入信号的光纤放大器，用于检测和输出对应于光输入信号的电平和可操作地连接到输入端的光开关，光纤放大器和第一光电二极管，用于将光输入信号交替地切换到光纤放大器和第一光电二极管中。

6. 发明授权

US5521737A Optical amplifier and optical communication system with optical amplifier using pumping light beam 失效
标题翻译：光放大器和光通信系统与光放大器采用泵浦光束
公开(公告)号：US5521737A
公开(公告)日：1996-05-28
申请号：US400760
申请日：1995-03-08
申请人： Masuo Suyama
发明人： Masuo Suyama
IPC分类号： G02B6/02 , G02F1/35 , H01S3/06 , H01S3/067 , H01S3/131 , H01S3/17 , H04B10/00 , H04B10/077 , H04B10/294 , H04B10/297
CPC分类号： H04B10/291 , H04B10/0777 , H04B10/2503 , H04B10/2912 , H04B10/2918 , H04B10/2931 , H01S3/06787 , H01S3/1301 , H04B2210/074
摘要： An optical communication system transmits information with a pumping light beam acting as the carrier, and with a signal light beam. This optical communication system includes an optical fiber amplifier adapted to amplify the signal light beam by having the signal light beam and the pumping light beam propagate through a rare-earth-doped fiber doped with a rare-earth element. A modulating circuit modulates the pumping light beam with a high-frequency modulating signal having a period shorter than the life span of fluorescence resulting from an excited state. When the signal light beam and the pumping light beam are propagated in the same direction through the rare-earth-doped fiber, the transmission of information with the pumping light beam acting as the carrier, can provide transmission of a supervisory signal for an optical repeater. When the signal light beam and the pumping light beam are propagated in opposite directions through the rare-earth-doped fiber, a two-way transmission can be achieved by the transmission of information with the signal light beam and the transmission of information with the pumping light beam.
摘要翻译：光通信系统利用作为载波的泵浦光束和信号光束发射信息。该光通信系统包括适于通过使信号光束和泵浦光束通过掺杂有稀土元素的稀土掺杂光纤传播来放大信号光束的光纤放大器。调制电路利用具有比由激发态产生的荧光寿命短的时间段的高频调制信号来调制泵浦光束。当信号光束和泵浦光束通过稀土掺杂光纤在相同方向上传播时，用作为载波的泵浦光束的信息传输可以提供用于光中继器的监控信号的传输。当信号光束和泵浦光束通过稀土掺杂光纤在相反方向传播时，可以通过信号光束传输信息和利用泵送信息传输来实现双向传输光束。

7. 发明授权

US5526163A Optical amplifier and optical communication system with optical amplifier using pumping light beam 失效
标题翻译：光放大器和光通信系统与光放大器采用泵浦光束
公开(公告)号：US5526163A
公开(公告)日：1996-06-11
申请号：US400755
申请日：1995-03-08
申请人： Masuo Suyama
发明人： Masuo Suyama
IPC分类号： G02B6/02 , G02F1/35 , H01S3/06 , H01S3/067 , H01S3/131 , H01S3/17 , H04B10/00 , H04B10/077 , H04B10/294 , H04B10/297 , H04B10/16
CPC分类号： H04B10/291 , H04B10/0777 , H04B10/2503 , H04B10/2912 , H04B10/2918 , H04B10/2931 , H01S3/06787 , H01S3/1301 , H04B2210/074
摘要： An optical communication system in which transmission of information with a pumping light beam acting as the carrier, in addition to transmission of information with a signal light beam, is made possible is disclosed. This optical communication system includes an optical fiber amplifier adapted to amplify a signal light beam by having the signal light beam and a pumping light beam propagated through its rare-earth-doped fiber doped with a rare earth element and a modulating circuit for modulating the pumping light beam with a high-frequency modulating signal having a period shorter than the life span of fluorescence resulting from an excited state. In the case where the signal light beam and the pumping light beam are propagated in the same direction through the rare-earth-doped fiber, the transmission of information with the pumping light beam acting as the carrier can constitute a transmission of supervisory signal for an optical repeater, and in the case where the signal light beam and the pumping light beam are propagated in the directions opposite to each other through the rare-earth-doped fiber, a two-way transmission can be achieved by the transmission of information with the signal light beam and the transmission of information with the pumping light beam.
摘要翻译：公开了一种光通信系统，其中除了具有信号光束的信息传输之外，还可以使用作为载波的泵浦光束的信息传输。该光通信系统包括光纤放大器，其适于通过使信号光束和通过其掺杂有稀土元素的稀土掺杂光纤传播的泵浦光束来放大信号光束，以及用于调制泵浦的调制电路光束具有比激发状态产生的荧光寿命短的高频调制信号。在信号光束和泵浦光束通过稀土掺杂光纤在相同方向传播的情况下，以作为载波的泵浦光束的信息传输可以构成用于光中继器，并且在信号光束和泵浦光束通过稀土掺杂光纤在彼此相反的方向上传播的情况下，可以通过传输信息来实现双向传输信号光束和信号与泵浦光束的传输。

8. 发明授权

US5299048A Optical amplifier and optical communication system provided with the optical amplifier 失效
标题翻译：配有光放大器的光放大器和光通信系统
公开(公告)号：US5299048A
公开(公告)日：1994-03-29
申请号：US987568
申请日：1992-12-08
申请人： Masuo Suyama
发明人： Masuo Suyama
IPC分类号： G02B6/02 , G02F1/35 , H01S3/06 , H01S3/067 , H01S3/131 , H01S3/17 , H04B10/00 , H04B10/077 , H04B10/294 , H04B10/297 , H04B10/02 , H04B10/16
CPC分类号： H04B10/291 , H04B10/0777 , H04B10/2503 , H04B10/2912 , H04B10/2918 , H04B10/2931 , H01S3/06787 , H01S3/1301 , H04B2210/074
摘要： An optical communication system for obtaining transmission of information with a pumping light beam acting as carrier, in addition to transmission of information with a signal light beam. This optical communication system includes an optical fiber amplifier amplifying a signal light beam by having the signal light beam and a pumping light beam propagated through a rare-earth-doped fiber, and a modulating circuit for modulating the pumping light beam with a high-frequency modulating signal having a period shorter than the life span of fluorescence resulting from an excited state. When the signal light beam and the pumping light beam are propagated in the same direction through the rare-earth-doped fiber, the transmission of information with the pumping light beam acting as a carrier constitutes a transmission of a supervisory signal for an optical repeater, and when the signal light beam and the pumping light beam are propagated in directions opposite to each other through the rare-earth-doped fiber, a two-way transmission is achieved by the transmission of information with the signal light beam and the transmission of information with the pumping light beam.
摘要翻译：一种光通信系统，用于除了用信号光束传输信息之外，还用作为载波的泵浦光束获得信息的传输。该光通信系统包括通过使信号光束和通过稀土掺杂光纤传播的泵浦光束来放大信号光束的光纤放大器，以及用于以高频调制泵浦光束的调制电路调制信号的周期短于由激发态引起的荧光寿命。当信号光束和泵浦光束通过稀土掺杂光纤在相同方向上传播时，以作为载波的泵浦光束的信息传输构成光中继器的监控信号的传输，并且当信号光束和泵浦光束通过稀土掺杂光纤在彼此相反的方向上传播时，通过用信号光束传输信息和信息传输来实现双向传输与泵浦光束。

9. 发明授权

US5535050A Optical amplifier and optical communication system with optical amplifier using pumping light beam 失效
标题翻译：光放大器和光通信系统与光放大器采用泵浦光束
公开(公告)号：US5535050A
公开(公告)日：1996-07-09
申请号：US400762
申请日：1995-03-08
申请人： Masuo Suyama
发明人： Masuo Suyama
IPC分类号： G02B6/02 , G02F1/35 , H01S3/06 , H01S3/067 , H01S3/131 , H01S3/17 , H04B10/00 , H04B10/077 , H04B10/294 , H04B10/297 , G02B6/26 , H04B10/16
CPC分类号： H04B10/291 , H04B10/0777 , H04B10/2503 , H04B10/2912 , H04B10/2918 , H04B10/2931 , H01S3/06787 , H01S3/1301 , H04B2210/074
摘要： An optical transmission system transmits an optical signal. The optical transmission system may include an optical amplifier. The optical amplifier amplifies a received optical signal. A pumping light source outputs a pumping light beam and monitor information or supervisory information. This optical amplifier is adapted to amplify the received optical signal by propagating the received optical signal. An optical fiber which may be doped with a rare-earth element. An optical coupler couples the received optical signal and a first pumping light beam to the input of the optical fiber. Through propagation of the signal through the optical fiber, the received optical signal is amplified.
摘要翻译：光传输系统传输光信号。光传输系统可以包括光放大器。光放大器放大接收到的光信号。泵浦光源输出泵浦光束并监视信息或监控信息。该光放大器适于通过传播所接收的光信号来放大所接收的光信号。可掺杂稀土元素的光纤。光耦合器将接收到的光信号和第一泵浦光束耦合到光纤的输入端。通过信号通过光纤传播，所接收的光信号被放大。

10. 发明授权

US5510931A Optical amplifier and optical communication system with optical amplifier using pumping right beam 失效
标题翻译：光放大器和光通信系统与光放大器使用泵浦右束
公开(公告)号：US5510931A
公开(公告)日：1996-04-23
申请号：US400761
申请日：1995-03-08
申请人： Masuo Suyama
发明人： Masuo Suyama
IPC分类号： G02B6/02 , G02F1/35 , H01S3/06 , H01S3/067 , H01S3/131 , H01S3/17 , H04B10/00 , H04B10/077 , H04B10/294 , H04B10/297 , H01S3/00
CPC分类号： H04B10/291 , H04B10/0777 , H04B10/2503 , H04B10/2912 , H04B10/2918 , H04B10/2931 , H01S3/06787 , H01S3/1301 , H04B2210/074
摘要： An optical communication system transmits information with a pumping light beam acting as the carrier, and with a signal light beam. This optical communication system includes an optical fiber amplifier adapted to amplify the signal light beam by having the signal light beam and the pumping light beam propagate through a rare-earth-doped fiber doped with a rare-earth element. A modulating circuit modulates the pumping light beam with a high-frequency modulating signal having a period shorter than the life span of fluorescence resulting from an excited state. When the signal light beam and the pumping light beam are propagated in the same direction through the rare-earth-doped fiber, the transmission of information with the pumping light beam acting as the carrier, can provide transmission of a supervisory signal for an optical repeater. When the signal light beam and the pumping light beam are propagated in opposite directions through the rare-earth-doped fiber, a two-way transmission can be achieved by the transmission of information with the signal light beam and the transmission of information with the pumping light beam.
摘要翻译：光通信系统利用作为载波的泵浦光束和信号光束发射信息。该光通信系统包括适于通过使信号光束和泵浦光束通过掺杂有稀土元素的稀土掺杂光纤传播来放大信号光束的光纤放大器。调制电路利用具有比由激发态产生的荧光寿命短的时间段的高频调制信号来调制泵浦光束。当信号光束和泵浦光束通过稀土掺杂光纤在相同方向上传播时，用作为载波的泵浦光束的信息传输可以提供用于光中继器的监控信号的传输。当信号光束和泵浦光束通过稀土掺杂光纤在相反方向传播时，可以通过信号光束传输信息和利用泵送信息传输来实现双向传输光束。

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