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. 发明专利

JP2005072737A Optical transmitting system 审中-公开
标题翻译：光传输系统
公开(公告)号：JP2005072737A
公开(公告)日：2005-03-17
申请号：JP2003296968
申请日：2003-08-21
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , エヌティティエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： SUGAWARA HIROHIKO , MURAGUCHI MASAHIRO , TOBA HIROSHI , FUKUSHIMA SEIJI , AKEYOSHI TOMOYUKI , SUZUKI SENTA , NAGASE AKIRA , ITO TOSHIO , SAKAMOTO TADASHI , SANO KOICHI , TOKUMITSU MASAMI , SAKAI YOSHIHISA , YAMABAYASHI YOSHIAKI , IWAMOTO RYUICHI , ISHII YOSHIKAZU
IPC分类号： G02B6/26 , G02B6/32 , G02B26/02 , H04B10/2507 , H04B10/2513 , H04B10/2581 , H04B10/524 , H04B10/02 , H04B10/18
摘要： PROBLEM TO BE SOLVED: To realize high-speed optical transmission at a distance longer than conventional distance by suppressing deterioration in wavelength due to mode dispersion of a multi-mode optical transmission path.
SOLUTION: Using a graded index type optical transmission path as an optical path, an excitation mechanism capable of exciting a specific mode is provided between an optical transmission section and an optical transmission path or midway along the optical transmission path, and a transmissive mechanism for allowing a specific mode to transmit is provided midway along the optical transmission path or between the transmission path and an optical receiver. According to this configuration, excitation of a specific low order mode is possible at a low loss, as well as the component of the low order mode can be selectively transmit at a low loss immediately before the optical transmitter even if one part is converted to the high order mode midway along the transmission path. Accordingly, the deterioration in wavelength due to mode dispersion of the multi-mode optical transmission path can be suppressed.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过抑制由多模光传输路径的模式色散引起的波长恶化，实现比常规距离更长的距离的高速光传输。解决方案：使用渐变折射率光传输路径作为光路，在光传输部分和光传输路径之间或沿着光传输路径的中途提供能够激发特定模式的激励机构，并且透射在光传输路径的中途或传输路径与光接收器之间设置允许特定模式发送的机制。根据该结构，能够以低损耗实现特定低阶模式的激励，并且即使将一个部分转换成为低频模式，也可以在光发射机之前以低损耗选择性地发送低阶模式的分量高阶模式沿传输路径中途。因此，可以抑制由于多模光传输路径的模式色散引起的波长的劣化。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2009059938A Optical-fiber amplifier 审中-公开
标题翻译：光纤放大器
公开(公告)号：JP2009059938A
公开(公告)日：2009-03-19
申请号：JP2007226504
申请日：2007-08-31
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： YAMADA MAKOTO , SAKAMOTO TADASHI , KANI JUNICHI , ONO HIROTAKA , SHIMIZU MAKOTO
IPC分类号： H01S3/06 , H01S3/0933
摘要： PROBLEM TO BE SOLVED: To provide a highly reliable and inexpensive Er doped optical fiber amplifier (EDFA) with low power consumption by using an inexpensive excitation light source which has low power consumption and operates in a wide temperature range. SOLUTION: Excitation light generated by a 1,480 nm band anchor semiconductor laser module 1 and a reflection mirror 2 having a reflection characteristic of a wide band is synthesized with signal light by an optical coupler 4-1 and is made incident onto EDF3 (Δn1.6%, cutoff wavelength of 0.95 μm, Er-doped concentration of 2,000 ppm, fiber length of 5 m) being an amplification medium. Optical isolators 5-1 and 5-2 are arranged in input/output ends for suppressing oscillation of EDFA. The reflection mirror 2 is constituted by connecting three fiber gratings having reflection in 1,455 nm, 1,476 nm and 1,495 nm in series. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过使用具有低功耗并且在宽温度范围内工作的便宜的激发光源，提供具有低功耗的高可靠性和廉价的铒掺杂光纤放大器（EDFA）。解决方案：通过光耦合器4-1由信号光合成由1,480nm带锚半导体激光器模块1产生的激发光和具有宽带反射特性的反射镜2，并入射到EDF3（ Δn1.6％，截止波长0.95μm，Er掺杂浓度2000ppm，纤维长度5μm）作为扩增介质。光隔离器5-1和5-2布置在输入/输出端，用于抑制EDFA的振荡。反射镜2通过串联连接在1,455nm，1,476nm和1,495nm的反射的三个光纤光栅构成。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2006245334A Optical fiber amplifier 审中-公开
标题翻译：光纤放大器
公开(公告)号：JP2006245334A
公开(公告)日：2006-09-14
申请号：JP2005059491
申请日：2005-03-03
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： SAKAMOTO TADASHI , YAMADA MAKOTO , SHIMIZU MAKOTO
IPC分类号： H01S3/06
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber amplifier capable of satisfactorily controlling the gain spectrum of a thorium-doped optical fiber amplifier (TDFA), using a simple configuration or a simple algorithm. SOLUTION: The optical fiber amplifier is provided with an amplifying optical fiber (201) doped with thorium; an excitation light source (204) for emitting an excitation light to be incident into the amplifying optical fiber; a detecting means (230) for detecting the loss amount of the excitation light in the amplifying optical fiber; an error signal extracting means (240) for outputting an error signal between the loss amount detected in the detecting means and the loss amount of the excitation light equivalent to a previously stored gain value; and a control means (250) for controlling the excitation light source so that the power of the excitation light varies and the error signal becomes zero. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够使用简单的配置或简单的算法令人满意地控制掺铒光纤放大器（TDFA）的增益谱的光纤放大器。解决方案：光纤放大器设置有掺杂有钍的放大光纤（201）用于发射入射到放大光纤中的激发光的激发光源（204）; 检测装置，用于检测放大光纤中的激发光的损耗量; 一个误差信号提取装置，用于输出在检测装置中检测的损耗量与等于先前存储的增益值的激发光的损耗量之间的误差信号; 以及用于控制激发光源以使激发光的功率发生变化并且误差信号变为零的控制装置（250）。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2008041928A Method and apparatus for inspecting optical amplifier 有权
标题翻译：检测光放大器的方法和装置
公开(公告)号：JP2008041928A
公开(公告)日：2008-02-21
申请号：JP2006214175
申请日：2006-08-07
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： ONO HIROTAKA , YAMADA MAKOTO , SAKAMOTO TADASHI , AOZASA SHINICHI , MORI ATSUSHI , SHIMIZU MAKOTO
IPC分类号： H01S3/10 , H01S3/06
摘要： PROBLEM TO BE SOLVED: To provide an optical amplifier inspection method and optical amplifier inspecting apparatus, capable of realizing accurate inspection of the FWM cross stroke value inside an optical amplifier, while suppressing increase in the inspection cost. SOLUTION: Light waves that oscillate from a plurality of signal light sources 1-1 to 40 that oscillate in a vertical single mode are multiplexed by a light multiplexer 4, and are inputted into an amplifier 20 for amplifying light under inspection. The light intensities of the light waves, outputted from the amplifier 20 for amplifying light under inspection, are measured for each signal wavelength by an optical spectrum analyzer 6, and FWM cross stroke value XT 40 (λ) is obtained. The measured XT 40 (λ) is corrected by the ratio of N 80 (λ) to N 40 (λ) that has been previously obtained. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种光学放大器检查方法和光放大器检查装置，能够在抑制检查成本增加的同时，实现光放大器内的FWM横行程值的精确检查。解决方案：由多路复用器4复用从垂直单模振荡的多个信号光源1-1至40振荡的光，并被输入到用于放大检测光的放大器20中。通过光谱分析仪6对每个信号波长测量从放大器20输出的用于放大检测光的光波强度，FWM十字行程值XT <40>（λ）为获得。测量的XT 40 （λ）通过先前已获得的N 80 （λ）与N 40 （λ）的比率来校正。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007048985A Ase light source 有权
标题翻译： ASE光源
公开(公告)号：JP2007048985A
公开(公告)日：2007-02-22
申请号：JP2005232602
申请日：2005-08-10
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： YAMADA MAKOTO , SAKAMOTO TADASHI , AOZASA SHINICHI , SHIMIZU MAKOTO
IPC分类号： H01S3/07 , H01S3/06
摘要： PROBLEM TO BE SOLVED: To provide a broadband ASE light source using a Tm 3+ /Tb 3+ additive fiber. SOLUTION: Optical transmission media 1, 6 have the optical fiber with at least Tm 3+ and Tb 3+ added to a core part and a clad part. The optical fiber comprises: optical transmission media 1, 6 including a first optical fiber having the core part and the clad part with the Tm 3+ and Tb 3+ added, and a second optical fiber having the core part and the clad part with at least Tm 3+ added; excitation light sources 2-1, 2-2 for generating an excitation light for exciting the optical transmission media; and means 3-1, 3-2 for guiding the excitation light from the excitation light sources 2-1, 2-2 to the optical transmission media. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：使用Tm 3 + / Tb 3 + 添加光纤提供宽带ASE光源。解决方案：光传输介质1,6具有至少添加到芯部分和包层部分的Tm 3 + 和Tb 3 + 的光纤。该光纤包括：光传输介质1,6，其包括具有核心部分的第一光纤和具有添加了Tm 3 + 和Tb 3 + 的包层部分，以及所述第二光纤具有所述芯部分和所述包层部分至少具有Tm 3 + ; 用于产生用于激发光传输介质的激发光的激发光源2-1,2-2; 以及用于将来自激发光源2-1,2-2的激发光引导到光传输介质的装置3-1,3-2。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006245343A Hybrid optical amplifier 有权
标题翻译：混合光放大器
公开(公告)号：JP2006245343A
公开(公告)日：2006-09-14
申请号：JP2005059597
申请日：2005-03-03
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： SAKAMOTO TADASHI , YAMADA MAKOTO , SHIMIZU MAKOTO
IPC分类号： H01S3/23 , H01S3/10
摘要： PROBLEM TO BE SOLVED: To provide a hybrid optical amplifier, capable of efficiently controlling the gain spectrum of the hybrid optical amplifier, in which two or more kinds of optical amplification units having different gain spectra and not necessarily flat are connected in series. SOLUTION: This amplifier is provided with n (n≥2)-units of optical amplifying units 21-1 to 21-n, each having an amplification medium for amplifying an inputted light and an excitation light source for exciting the amplification medium, the n-units of optical amplifying units, each have two kinds of optical amplification media in total, and the units 21-1 to 21-n are each connected in series. The units 21-1 to 21-n are each provided with an electrical control circuit 28 for controlling all the gain spectra of n-units of optical amplifying units so that they become individually constant. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了提供能够有效地控制混合光放大器的增益谱的混合光放大器，其中具有不同增益谱并且不一定平坦的两种或更多种光放大单元串联连接。解决方案：该放大器设有n（n≥2）个光放大单元21-1至21-n，每个具有用于放大输入光的放大介质和用于激发放大介质的激发光源，n个单位的光放大单元各自总共具有两种光放大介质，单元21-1至21-n各自串联连接。单元21-1至21-n各自设置有电控制电路28，用于控制光放大单元的n单元的所有增益谱，使得它们变为单独恒定。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006294755A Optical fiber amplifier 审中-公开
标题翻译：光纤放大器
公开(公告)号：JP2006294755A
公开(公告)日：2006-10-26
申请号：JP2005111298
申请日：2005-04-07
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： YAMADA MAKOTO , SAKAMOTO TADASHI , ONO HIROTAKA , SHIMIZU MAKOTO
IPC分类号： H01S3/10 , H01S3/06 , H01S3/094
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber amplifier in which a manufacturing yield is good, in which low-pricing can be attained, and which has practical stability. SOLUTION: The optical fiber amplifier includes an Er addition optical fiber 1 which is an amplification medium; a pump source 2 which generates an excitation light for exciting the amplification medium; and an optical combining/divider 3 which combines a signal light and an excitation light from the pump source 2, and is input into the Er addition optical fiber 1, and which amplifiers the signal light. In the optical fiber amplifier which amplifies the signal light, the pump source 2 outputs the excitation light of 0.66 μm band. The optical combining/divider 3 is a fiber type light coupler which makes it approach with a signal mode fiber with a cutoff wavelength shorter than the wavelength of the excitation light, and a fiber form light coupler which makes it approach with the single mode fiber longer than the wavelength of the excitation light and shorter than the wavelength of the signal light, and combines the light. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造成品率良好的光纤放大器，其中可以实现低定价，并且具有实际的稳定性。解决方案：光纤放大器包括作为放大介质的Er添加光纤1; 泵浦源2，其产生用于激发放大介质的激发光; 以及组合了来自泵浦源2的信号光和激发光的光合成/分离器3，并被输入到Er添加光纤1中，并且对信号光进行放大。在放大信号光的光纤放大器中，泵浦源2输出0.66μm波段的激发光。光学组合/分离器3是一种光纤类型的光耦合器，其使其接近具有比激发光的波长短的截止波长的信号模式光纤，以及使其与单模光纤接近的光纤形式的光耦合器比激发光的波长短于信号光的波长，并组合光。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2012080138A Optical fiber amplifier 审中-公开
标题翻译：光纤放大器
公开(公告)号：JP2012080138A
公开(公告)日：2012-04-19
申请号：JP2012012232
申请日：2012-01-24
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： YAMADA MAKOTO , SAKAMOTO TADASHI , KANI JUNICHI , ONO HIROTAKA , SHIMIZU MAKOTO
IPC分类号： H01S3/06
摘要： PROBLEM TO BE SOLVED: To provide a highly reliable and inexpensive Er-doped fiber amplifier (EDFA) with low power consumption by using an inexpensive excitation light source which has low power consumption and operates in a wide temperature range.SOLUTION: Excitation light generated by a 1,480 nm band anchor semiconductor laser module 1 and a reflection mirror 2 having a wide-band reflection characteristic is synthesized with signal light by an optical multiplexer 4-1 and is made incident onto an EDF 3 (Δn1.6%, cutoff wavelength of 0.95 μm, Er-doped concentration of 2000 ppm, fiber length of 5 m) being an amplification medium. Optical isolators 5-1 and 5-2 are arranged in input/output ends for suppressing oscillation of the EDFA. The reflection mirror 2 is configured by connecting three fiber gratings having reflection in 1,455 nm, 1,476 nm and 1,495 nm in series.
摘要翻译：要解决的问题：通过使用具有低功耗并在宽温度范围内操作的廉价激发光源，提供具有低功耗的高可靠性和廉价的铒掺杂光纤放大器（EDFA）。解决方案：由1,480nm带锚半导体激光器模块1产生的激发光和具有宽带反射特性的反射镜2由信号光通过光复用器4-1合成并入射到EDF 3上（Δn1.6％，截止波长0.95μm，Er掺杂浓度2000ppm，纤维长度5μm）作为扩增介质。光隔离器5-1和5-2布置在输入/输出端，用于抑制EDFA的振荡。反射镜2通过串联连接具有1455nm，1,476nm和1,495nm的反射的三个光纤光栅来配置。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2006294819A Component for optical amplification, optical amplifier, and optical communication system 审中-公开
标题翻译：用于光放大的组件，光放大器和光通信系统
公开(公告)号：JP2006294819A
公开(公告)日：2006-10-26
申请号：JP2005112799
申请日：2005-04-08
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： ONO HIROTAKA , YAMADA MAKOTO , SAKAMOTO TADASHI , MORI ATSUSHI , SHIMIZU MAKOTO
IPC分类号： H01S3/10
摘要： PROBLEM TO BE SOLVED: To provide a component for optical amplification used for an S-band optical amplifier of high efficiency, and the S-band optical amplifier of high efficiency, and an efficient optical communication system using the same. SOLUTION: Optical isolator 2 and an excitation light source 3 are connected to an input end of a multiplexer/demultiplexer 4 which multiplexes excitation light with signal light. An Er-added fiber 1 is connected to an input end and an output end of an optical filter 5. One end of an Er-added fiber 1-a is connected to the output end of the multiplexer/demultiplexer 4 while one end of an Er-added fiber 1-b to the input end of a multiplexer/demultiplexer 4'. Thus, an optical filter is inserted in the middle of the Er-added fiber. An optical isolator 2' is connected to the output end of the multiplexer/demultiplexer 4'. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于高效率的S波段光放大器的光放大部件和高效率的S波段光放大器，以及使用该部件的高效光通信系统。解决方案：光隔离器2和激发光源3连接到多路复用器/解复用器4的输入端，多路复用器/解复用器4将激发光与信号光复用。添加铒的光纤1连接到滤光器5的输入端和输出端。铒加入光纤1-a的一端连接到多路复用器/解复用器4的输出端，而一端铒添加光纤1-b到复用器/解复用器4'的输入端。因此，将滤光器插入添加铒的光纤的中间。光隔离器2'连接到多路复用器/解复用器4'的输出端。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2012242677A Optical circuit, and optical amplifier, variable dispersion compensator, and variable optical delay device using the same 有权
标题翻译：光电路和光放大器，可变分散补偿器和使用其的可变光学延迟器件
公开(公告)号：JP2012242677A
公开(公告)日：2012-12-10
申请号：JP2011113919
申请日：2011-05-20
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ONO HIROTAKA , WATANABE TOSHIO , SUZUKI MASAYA , TAKAHASHI TETSUO , SAKAMOTO TADASHI
IPC分类号： G02B26/08 , G02B26/02 , H01S3/10
摘要： PROBLEM TO BE SOLVED: To provide an optical circuit which outputs signal light in a fixed optical power level without wasting excitation optical power and is capable of avoiding an increase of noise and a reduction of efficiency, and to provide an optical amplifier, a variable dispersion compensator, and a variable optical delay device which use the optical circuit.SOLUTION: An optical circuit 10 comprises: one master input port; N slave input ports; one 1×N master optical switch 1; one N×1 master optical switch 2; N-1 1×j slave optical switches 4-1 to 4-(N-1) where j is an integer equal to or larger than 2 and is equal to or smaller than N; N-1 i×1 slave optical switches 3-1 to 3-(N-1) where i is an integer equal to or larger than 2 and is equal to or smaller than N; N slave output ports; and one master output port. A combination of optical fibers for amplification to be connected to the optical circuit 10 can be changed by switching of respective optical switches, and as a result, a total length of optical fibers for amplification through which signal light passes is changed to obtain a variable gain.
摘要翻译：要解决的问题：提供一种在不浪费激发光功率的情况下输出固定光功率电平的信号光并能够避免噪声增加和效率降低的光电路，并且提供光放大器，可变色散补偿器，以及使用光路的可变光延迟器件。解决方案：光电路10包括：一个主输入端口; N个从机输入端口; 一个1×N主光口1; 一个N×1主光电开关2; N-1 1×j从属光开关4-1至4-（N-1）其中j是等于或大于2且等于或小于N的整数; N-1 i×1从属光开关3-1至3-（N-1）其中i是等于或大于2且等于或小于N的整数; N个从机输出端口; 和一个主输出端口。可以通过切换各个光开关来改变要连接到光电路10的用于放大的光纤的组合，结果，信号光通过的用于放大的光纤的总长度被改变以获得可变增益。版权所有（C）2013，JPO＆INPIT

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