专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明申请

US20070268570A1 Optically active device 有权
标题翻译：光学有源器件
公开(公告)号：US20070268570A1
公开(公告)日：2007-11-22
申请号：US11798530
申请日：2007-05-15
申请人： Motoki Kakui
发明人： Motoki Kakui
IPC分类号： H01S3/00 , H04B10/12
CPC分类号： H01S3/06758 , H01S3/0078 , H01S3/094003 , H01S3/094061 , H01S2301/02
摘要： The present invention relates to an optically active device comprising a plurality of stages of optical amplifying sections cascaded on an input light propagation path, and a structure for effectively preventing an upstream pumping light source from being destroyed by ASE light propagating in a direction opposite to the input light. The optically active device comprises, at least, a front-stage optical amplifying section and a rear-stage optical amplifying section which are adjacent to each other on the input light propagation path. Each of the front-stage optical amplifying section and rear-stage optical amplifying section includes an amplification fiber doped with ytterbium as an optically active material and a pumping light source for supplying the amplification optical fiber with pumping light in the band of 0.98 μm for pumping the optically active material. In particular, the optically active device comprises a deterioration preventing structure for preventing the pumping light source in the front-stage optical amplifying section from deteriorating a performance. An embodiment of the deterioration preventing structure is realized by a wavelength-multiplexing fiber coupler of a wavelength division type arranged between the front-stage optical amplifying section and rear-stage optical amplifying section. The wavelength-multiplexing coupler has a port for selectively eliminating from the input light propagation path at least an ASE component in the band of 0.98 μm from backward ASE light from the rear-stage optical amplifying section.
摘要翻译：本发明涉及一种光学器件，其包括在输入光传播路径上级联的多级光放大部分，以及用于有效地防止上游泵浦光源被ASE光沿相反方向传播的ASE光被破坏的结构输入光。光学有源装置至少包括在输入光传播路径上彼此相邻的前级光放大部分和后级光放大部分。前级光放大部分和后级光放大部分都包括掺杂有镱作为光学活性材料的放大光纤，以及用于向放大光纤提供泵浦光的波长为0.98μm的泵浦光的泵浦光源光学活性材料。特别地，光学活性器件包括用于防止前级光放大部分中的泵浦光源的劣化防止结构劣化的性能。通过布置在前级光放大部分和后级光放大部分之间的波分复用光纤耦合器实现防恶化结构的一个实施例。波长复用耦合器具有一个端口，用于从后级光放大部分的后向ASE光中选择性地从输入光传播路径中消除0.98μm的频带中的至少一个ASE分量。

72. 发明申请

US20070171516A1 Optical amplification module and laser light source including the same 失效
标题翻译：光放大模块和激光光源包括相同
公开(公告)号：US20070171516A1
公开(公告)日：2007-07-26
申请号：US11443456
申请日：2006-05-31
申请人： Shinobu Tamaoki , Motoki Kakui
发明人： Shinobu Tamaoki , Motoki Kakui
IPC分类号： H01S3/00 , H04B10/12
CPC分类号： H01S3/06758 , H01S3/06716 , H01S3/094003 , H01S3/094007
摘要： The present invention relates to an optical amplification module having a construction which effectively suppresses photodarkening, and to a laser light source including the same. The laser light source comprises a light source for outputting light to be amplified, and an optical amplification module. The optical amplification module comprises two types of optical amplification media having different rare earth element concentrations, and a pumping light source. The low concentration medium and the high concentration medium are disposed in the propagation direction of pumping light such that the population inversion of the low concentration medium is higher than that of the high concentration medium. Hence, by arranging two types of optical amplification media with different rare earth concentrations such that the population inversion of the low concentration medium is higher than that of the high concentration medium, sufficient overall gain of the laser light source can be obtained while effectively suppressing photodarkening in the two types of optical amplification media.
摘要翻译：本发明涉及具有有效抑制光暗化的结构的光放大模块及涉及包括该光放大模块的激光光源。激光光源包括用于输出要放大的光的光源和光放大模块。光放大模块包括具有不同稀土元素浓度的两种类型的光放大介质和泵浦光源。低浓度培养基和高浓度培养基配置在泵浦光的传播方向，使得低浓度培养基的群体倒置高于高浓度培养基。因此，通过布置具有不同稀土浓度的两种类型的光学放大介质，使得低浓度介质的群体反转高于高浓度介质的群体反转，可以在有效抑制光暗化的同时获得激光源的足够的总体增益在两种类型的光放大介质中。

73. 发明授权

US07170674B2 Fluorescence glass, optical wave guide for optical amplifier and optical amplifier module 失效
标题翻译：荧光玻璃，光学放大器和光放大器模块的光波导
公开(公告)号：US07170674B2
公开(公告)日：2007-01-30
申请号：US10725928
申请日：2003-12-03
申请人： Motoki Kakui , Masayuki Shigematsu , Shinji Ishikawa , Ichiro Tsuchiya , Takahiro Murata
发明人： Motoki Kakui , Masayuki Shigematsu , Shinji Ishikawa , Ichiro Tsuchiya , Takahiro Murata
IPC分类号： H01S3/067 , C03C13/04 , C03C3/076
CPC分类号： C03C3/06 , C03C3/083 , C03C3/089 , C03C3/091 , C03C3/097 , C03C3/16 , C03C3/17 , C03C3/253 , H01S3/06716
摘要： The present invention provides fluorescent glass containing at least 50 mol % of at least one kind of oxide selected from the group consisting of SiO2, GeO2, and P2O5 as a glass constituent of a region containing a Bi ion as a dopant.
摘要翻译：本发明提供含有至少50mol％的选自SiO 2，GeO 2，和P 2 O 3中的至少一种氧化物的荧光玻璃，作为含有作为掺杂剂的Bi离子的区域的玻璃成分的2 O 5 O 3。

74. 发明申请

US20060257150A1 Laser light source, method of laser oscillation, and method of laser processing 有权
标题翻译：激光光源，激光振荡方法和激光加工方法
公开(公告)号：US20060257150A1
公开(公告)日：2006-11-16
申请号：US11417253
申请日：2006-05-04
申请人： Ichiro Tsuchiya , Motoki Kakui
发明人： Ichiro Tsuchiya , Motoki Kakui
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H01S3/06758 , H01S5/005 , H01S5/0057 , H01S5/4087 , H04J14/0221
摘要： A laser light source includes a light source section for outputting pulse laser light λ1, λ2 with a mutually identical repetition frequency, an optical amplification section for amplifying and outputting the pulse laser light λ1, λ2 output from the above light source section by means of a common optical amplification medium, an optical demultiplexing section for mutually demultiplexing pulse laser light λ1, λ2, an optical multiplexing section for multiplexing and outputting the pulse laser light λ1, λ2 demultiplexed in the above optical demultiplexing section, and an optical path length difference setting section for adjusting an optical path length difference between the pulse laser light λ1, λ2 in between the optical demultiplexing section and the optical multiplexing section.
摘要翻译：激光源包括用于以相同相同的重复频率输出脉冲激光λ1，λ2 2的光源部分，用于放大和输出脉冲的光放大部分通过公共光放大介质从上述光源部分输出的激光λ1λ2λ2，用于相互解复用脉冲激光λ

75. 发明申请

US20050276564A1 Optical waveguide, light source, and optical amplifier 审中-公开
标题翻译：光波导，光源和光放大器
公开(公告)号：US20050276564A1
公开(公告)日：2005-12-15
申请号：US11118754
申请日：2005-05-02
申请人： Motoki Kakui , Shinji Ishikawa , Tetsuya Haruna , Takahiro Murata
发明人： Motoki Kakui , Shinji Ishikawa , Tetsuya Haruna , Takahiro Murata
IPC分类号： H01S3/06 , G02B6/00 , G02B6/02 , H01S3/00 , H01S3/067 , H01S3/07 , H01S3/10 , H01S3/16 , H01S3/23
CPC分类号： G02B6/02 , H01S3/005 , H01S3/0064 , H01S3/06716 , H01S3/06754 , H01S3/1608 , H01S3/1616 , H01S3/1618 , H01S3/2383
摘要： The present invention relates to an optical waveguide and the like having a structure for generating a wide band of ASE. The optical waveguide comprises a material mainly comprised of glass or glass ceramics, and is at least partly doped with a rare earth element. In a spectrum of ASE generated in the optical waveguide when supplied with pumping light having a single wavelength in particular, a 15-dB band or 10-dB band includes a range from 1.45 μm to 1.65 μm or a range from 1.5 μm to 1.7 μm. Alternatively, a 3-dB band includes S, C, and L bands.
摘要翻译：本发明涉及具有用于产生ASE的宽带的结构的光波导等。光波导包括主要由玻璃或玻璃陶瓷组成的材料，并且至少部分地掺杂有稀土元素。在提供特别是具有单一波长的泵浦光的光波导中产生的ASE的光谱中，15dB带或10dB带包括1.45μm至1.65μm的范围或1.5μm至1.7μm的范围。或者，3dB频带包括S，C和L频带。

76. 发明授权

US06958856B2 Raman amplifier, raman amplifier control method, and optical communication system 有权
标题翻译：拉曼放大器，拉曼放大器控制方法和光通信系统
公开(公告)号：US06958856B2
公开(公告)日：2005-10-25
申请号：US10162596
申请日：2002-06-06
申请人： Masayuki Inoue , Motoki Kakui
发明人： Masayuki Inoue , Motoki Kakui
IPC分类号： H04B10/291 , H01S3/00
CPC分类号： H04B10/2916
摘要： The present invention provides a Raman amplifier and the like comprising a structure for keeping the flatness of power spectrum of Raman-amplified signal light. The Raman amplifier comprises an optical fiber for Raman-amplifying a plurality of signal channels of signal light having respective center optical frequencies different from each other; a pumping light supply section for supplying N (N being an integer of 2 or more) pumping channels of pumping light having respective center optical frequencies different from each other to the optical fiber; and a feedback section for detecting a part of the signal light Raman-amplified within the optical fiber when the pumping light is supplied thereto, and controlling the pumping light supply section such that the Raman-amplified signal light has a substantially flat power spectrum with respect to an optical frequency direction according to the result of detection. In particular, the feedback section divides the detected Raman-amplified signal light into N optical frequency ranges defined so as to include respective Raman amplification peaks as optical frequencies lower than respective center optical frequencies of the pumping channels of pumping light by an optical frequency shift of about 15 THz, and controls the pumping light supply section such that the Raman-amplified signal light has a power fluctuation of 2 dB or less in each of thus divided N optical frequency ranges.
摘要翻译：本发明提供一种拉曼放大器等，其包括用于保持拉曼放大信号光的功率谱的平坦度的结构。拉曼放大器包括用于拉曼放大具有彼此具有不同的中心光频率的信号光的多个信号通道的光纤; 泵浦光供应部分，用于将具有彼此不同的各个中心光频率的泵浦光的泵浦通道的N（N是2或更大的整数）提供给光纤; 以及反馈部分，用于当泵浦光被提供到其中时，检测在光纤内放大的信号光的一部分的一部分，并且控制泵浦光供应部分，使得拉曼放大的信号光具有基本平坦的功率谱，根据检测结果到光频方向。特别地，反馈部分将检测到的拉曼放大信号光分成N个光学频率范围，其定义为包括相应的拉曼放大峰值，其光频率低于泵浦光泵浦通道的各个中心光频率，大约15THz，并且控制泵浦光供应部分，使得拉曼放大信号光在这样划分的N个光频率范围的每一个中具有2dB或更小的功率波动。

77. 发明申请

US20050078905A1 Optically amplifying waveguide, optical amplifier module, and optical communication system 有权
标题翻译：光放大波导，光放大器模块和光通讯系统
公开(公告)号：US20050078905A1
公开(公告)日：2005-04-14
申请号：US10933477
申请日：2004-09-03
申请人： Motoki Kakui , Chie Fukuda
发明人： Motoki Kakui , Chie Fukuda
IPC分类号： G02B6/28 , H01S3/00 , H01S3/067 , H01S3/16 , H04B10/17 , G02B6/12
CPC分类号： H04B10/294 , G02B6/2821 , H01S3/005 , H01S3/0064 , H01S3/0078 , H01S3/067 , H01S3/06716 , H01S3/06758 , H01S3/06775 , H01S3/1608
摘要： An optically amplifying waveguide that can have a gain having a small wave-length dependency in a wavelength range shorter than the C-band, and the like. The optical amplifier module 1 optically amplifies a signal lightwave that has a wavelength lying in a wavelength range of 1,490 to 1,530 nm and that has entered an input connector 11 to output the optically amplified signal lightwave from an output connector 12. An optical isolator 21, a WDM coupler 31, an Er-doped optical fiber (EDF) 50, a WDM coupler 32, and an optical isolator 22 are provided in this order on a signal lightwave-transmitting path from the input connector 11 to the output connector 12. A pump source 41 connected to the WDM coupler 31 and a pump source 42 connected to the WDM coupler 32 are also provided. In the EDF 50, at least one of the stimulated-emission cross section and the absorption cross section assumes a maximum value at the shorter-wavelength side of a peak at a wavelength range of 1.53 μm.
摘要翻译：可以具有在比C波段短的波长范围内具有小波长依赖性的增益的光放大波导等。光放大器模块1对具有波长范围为1,490至1,530nm的波长的信号光波进行光学放大，并且已经进入输入连接器11以从输出连接器12输出光放大信号光波。光隔离器21，在从输入连接器11到输出连接器12的信号光波传播路径上依次设置WDM耦合器31，掺铒光纤（EDF）50，WDM耦合器32和光隔离器22。还提供连接到WDM耦合器31的泵浦源41和连接到WDM耦合器32的泵浦源42。在EDF50中，受激发射截面和吸收截面中的至少一个在1.53μm波长范围内的峰的短波长侧呈现最大值。

78. 发明申请

US20050078357A1 Optical amplifier and optical communication system including the same 失效
标题翻译：光放大器和光通信系统包括相同
公开(公告)号：US20050078357A1
公开(公告)日：2005-04-14
申请号：US10978473
申请日：2004-11-02
申请人： Motoki Kakui , Masakazu Shigehara
发明人： Motoki Kakui , Masakazu Shigehara
IPC分类号： G02B6/00 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/00
CPC分类号： H04B10/2941
摘要： The present invention relates to an optical amplifier (TDFA) having a configuration which enables to reduce temperature dependence of the gain with reduced power consumption and simple control. The optical amplifier includes, in the order from an input port to an output port, an optical isolator, an optical coupler, an optical amplification fiber, an optical coupler, an optical isolator, an optical gain equalizing filter, a variable optical attenuator, an optical isolator, an optical coupler, an amplification fiber, an optical coupler, and an optical isolator. At least a core region of the optical amplification fiber is doped with Tm element, and signal light in a predetermined wavelength range is amplified by supply of pumping light. The gain equalizing fiber has a loss spectrum which shifts toward the short wavelength side as the temperature of the optical waveguide is higher, thereby equalizing the optical amplification gain of the signal light in the optical amplification fiber.
摘要翻译：本发明涉及一种光放大器（TDFA），其具有能够以降低的功耗和简单的控制来降低增益的温度依赖性的结构。光放大器按照从输入端口到输出端口的顺序包括光隔离器，光耦合器，光放大光纤，光耦合器，光隔离器，光增益均衡滤波器，可变光衰减器，光隔离器，光耦合器，放大光纤，光耦合器和光隔离器。光放大光纤的至少核心区域掺杂有Tm元件，并且通过提供泵浦光来放大预定波长范围的信号光。增益均衡光纤具有随着光波导的温度较高而向短波长侧移动的损耗谱，从而使光放大光纤中的信号光的光放大增益均衡。

79. 发明授权

US06867907B2 Pumping light source unit, raman amplifier, and optical transmission system 失效
标题翻译：泵浦光源单元，拉曼放大器和光传输系统
公开(公告)号：US06867907B2
公开(公告)日：2005-03-15
申请号：US10183366
申请日：2002-06-28
申请人： Masayuki Inoue , Motoki Kakui , Masakazu Shigehara
发明人： Masayuki Inoue , Motoki Kakui , Masakazu Shigehara
IPC分类号： G02F1/35 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/30 , H01S5/14 , H01S3/00
CPC分类号： H04B10/2916 , H01S3/06754 , H01S3/094096 , H01S3/1003 , H01S3/302 , H01S5/146
摘要： The present invention relates to a pumping light source unit for Raman amplification and the like comprising a structure for improving the pumping light spectrum controllability so as to enable output signal light spectrum adjustment within an amplification wavelength band. The pumping light source unit comprises N (≧2) pumping light sources for outputting N channels of pumping light having respective wavelengths different from each other, a multiplexer for multiplexing the N channels of pumping light, and an output structure for supplying a Raman amplification optical fiber with the pumping light outputted from the multiplexer. In particular, at least one of the N pumping light sources includes a variable length pumping light source adapted to change the channel wavelength of pumping light outputted therefrom. This configuration makes it possible to adjust pumping light spectra, thereby improving the controllability of output signal light spectra (Raman gain spectra).
摘要翻译：本发明涉及一种用于拉曼放大等的泵浦光源单元，其包括用于提高泵浦光谱可控性的结构，以使得能够在放大波长带内进行输出信号光谱调节。泵浦光源单元包括N（> = 2）个泵浦光源，用于输出具有彼此不同的波长的N个泵浦光的通道;多路复用器，用于多路复用N个通道的泵浦光;以及输出结构，用于提供拉曼放大具有从多路复用器输出的泵浦光的光纤。特别地，N个抽运光源中的至少一个包括适于改变从其输出的泵浦光的通道波长的可变长度的泵浦光源。该配置使得可以调节泵浦光谱，从而提高输出信号光谱（拉曼增益光谱）的可控性。

80. 发明申请

US20050012986A1 Broad-band light source 有权
标题翻译：宽带光源
公开(公告)号：US20050012986A1
公开(公告)日：2005-01-20
申请号：US10892227
申请日：2004-07-16
申请人： Motoki Kakui
发明人： Motoki Kakui
IPC分类号： H01S3/10 , H01S3/00 , H01S3/06 , H01S3/067
CPC分类号： H01S3/06795
摘要： A broad-band light source has a reduced tendency to oscillate and has high efficiency. The broad-band light source comprises (a) an optical waveguide that comprises a optical active element to generate an ASE lightwave when a pumping lightwave is supplied, that outputs an ASE lightwave in a first wavelength band from its first end, and that outputs an ASE lightwave in a second wavelength band from its second end, (b) a pumping lightwave-supplying means for supplying a pumping lightwave to the optical active element, and (c) a lightwave-combining means that receives the ASE lightwave in the first wavelength band, that receives the ASE lightwave in the second wavelength band, that combines the received ASE lightwaves, and that outputs the resultant ASE lightwave.
摘要翻译：宽带光源具有降低的振荡趋势并且具有高效率。宽带光源包括（a）光波导，其包括当提供泵浦光波时产生ASE光波的光有源元件，其从其第一端输出第一波长带中的ASE光波，并且输出 ASE光波从其第二端处于第二波长带，（b）用于向光学有源元件提供泵浦光波的泵浦光波提供装置，以及（c）接收第一波长的ASE光波的光波合成装置其接收第二波长带中的ASE光波，其组合所接收的ASE光波，并且输出所得的ASE光波。

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