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1. 发明授权

US06172803B2 Optical amplifier and transmission system using the same 有权
标题翻译：光放大器和传输系统使用相同
公开(公告)号：US06172803B2
公开(公告)日：2001-01-09
申请号：US09171409
申请日：1998-10-16
申请人： Hiroji Masuda , Shingo Kawai , Kenichi Suzuki , Kazuo Aida
发明人： Hiroji Masuda , Shingo Kawai , Kenichi Suzuki , Kazuo Aida
IPC分类号： H01S300
CPC分类号： H04B10/2912 , H01S3/06758 , H01S3/094003 , H01S3/094011 , H01S3/094096 , H01S3/1608 , H01S3/302 , H01S2301/04 , H04B10/291 , H04B10/2916 , H04B10/2941 , H04B2210/003
摘要： An optical amplifier having a two-stage construction using an erbium doped fiber (EDF) as a gain medium. The erbium dopant concentration is 1000 ppm, and the unsaturated absorption coefficient of the signal beam at 1550 nm is 1 dB/m. The length of the EDF 14-8 is 10 m, and the length of the EDF 14-12 is 70 m. The excitation light sources 14-6 and 14-10 are semiconductor lasers of 1.53 &mgr;m, and the excitation light power is 100 mW. Multiplexers 14-7 and 14-11 are inductive multi-layer film filters, and the gain equalizer 14-4 is a Fourier filter. The peak loss of the Fourier filter is 17 dB. The gain of the EDF 14-8 is 25 dB, and the gain of the EDF 14-12 is 15 dB. Two optical isolators are installed on a pre-stage amplifier, and one on a post-stage amplifier in order to prevent laser oscillation.
摘要翻译：一种具有使用掺铒光纤（EDF）作为增益介质的两级结构的光放大器。铒掺杂剂浓度为1000ppm，1550nm处的信号束的不饱和吸收系数为1dB / m。 EDF14-8的长度为10μm，EDF14-12的长度为70μm。激发光源14-6和14-10是1.53μm的半导体激光器，激发光功率为100mW。多路复用器14-7和14-11是感性多层膜滤波器，增益均衡器14-4是傅立叶滤波器。傅立叶滤波器的峰值损耗为17 dB。 EDF 14-8的增益为25 dB，EDF 14-12的增益为15 dB。两个光隔离器安装在前级放大器上，一个安装在后级放大器上，以防止激光振荡。

2. 发明授权

US6157025A Disk shaped tunable optical filter 有权
标题翻译：盘形可调滤光片
公开(公告)号：US6157025A
公开(公告)日：2000-12-05
申请号：US174724
申请日：1998-10-19
申请人： Yoshitada Katagiri , Yoshiaki Tachikawa , Shinji Nagaoka , Fumikazu Ohira , Kazuo Aida , Ken-ichi Suzuki , Hiroshi Abe , Shingo Kawai , Hitoshi Obara
发明人： Yoshitada Katagiri , Yoshiaki Tachikawa , Shinji Nagaoka , Fumikazu Ohira , Kazuo Aida , Ken-ichi Suzuki , Hiroshi Abe , Shingo Kawai , Hitoshi Obara
IPC分类号： G02B6/34 , G02B7/00 , G02B26/00 , G02B27/44 , H01J40/14
CPC分类号： G02B6/4246 , G02B26/008 , G02B27/4244 , G02B6/29361 , G02B6/29395 , G02B5/20 , G02B6/2937 , G02B7/006
摘要： A disk shaped tunable optical filter is formed by a transparent substrate in a disk shape, and a filter layer formed on a top surface of the substrate, having such a filter characteristic that a transmission central wavelength varies along a circumferential direction as a monotonic function of a viewing angle. This disk shaped tunable optical filter can be advatageously utilized in realizing a wavelength discrimination apparatus, a reference wavelength light generation apparatus, an optical packet generation apparatus, and a tunable optical filter module, which are also disclosed.
摘要翻译：盘状可调谐滤光器由盘状的透明基板和形成在基板的顶面上的滤光层形成，该滤光片具有透光中心波长沿圆周方向变化的滤光器特性，作为单调功能视角。这种盘形可调光滤波器可以被广泛地用于实现波长鉴别装置，参考波长发光装置，光分组产生装置和可调光滤波器模块。

3. 发明授权

US5986789A Optical transmission line and optical transmission system 失效
标题翻译：光传输线路和光传输系统
公开(公告)号：US5986789A
公开(公告)日：1999-11-16
申请号：US812158
申请日：1997-03-06
申请人： Shingo Kawai , Kenichi Suzuki , Katsumi Iwatsuki
发明人： Shingo Kawai , Kenichi Suzuki , Katsumi Iwatsuki
IPC分类号： H04B10/2507 , H04B10/18 , H04B10/12
CPC分类号： H04B10/25077
摘要： An optical transmission line formed by a plurality of transmission circuits each comprising, connected in the following order, an optical fiber, an optical amplifier and an optical filter. The dispersion decrease in each optical fiber and the amplification of each optical amplifier are set for each transmission circuit such as to obtain a predetermined optical pulse width, the central frequencies of the optical filters are made to sequentially slide toward lower frequencies along the direction of propagation, and the mean zero-dispersion wavelengths of the optical fibers are made to sequentially increase along the direction of propagation. An optical transmission system according to the present invention is formed from an optical transmission line according to the present invention, an optical transmitter and an optical receiver.
摘要翻译：由多个传输电路形成的光传输线，每个传输电路包括以下顺序连接的光纤，光放大器和滤光器。为了获得预定的光脉冲宽度，为每个发射电路设置每个光纤的色散减小和每个光放大器的放大，使得滤光器的中心频率沿着传播方向向较低的频率顺序地滑动，并且使光纤的平均零色散波长沿着传播方向依次增加。根据本发明的光传输系统由根据本发明的光传输线，光发射机和光接收机形成。

4. 发明授权

US5764841A Optical fiber transmission line, optical fiber transmission system and production method thereof, and optical fiber combining method 失效
标题翻译：光纤传输线，光纤传输系统及其制造方法以及光纤组合方法
公开(公告)号：US5764841A
公开(公告)日：1998-06-09
申请号：US840024
申请日：1997-04-24
申请人： Katsumi Iwatsuki , Kenichi Suzuki , Shingo Kawai
发明人： Katsumi Iwatsuki , Kenichi Suzuki , Shingo Kawai
IPC分类号： G02B6/34 , H04B10/2525 , G02B6/02
CPC分类号： H04B10/25253
摘要： The optical fiber transmission line according to the present invention comprises first optical fibers having dispersion values greater than the average dispersion value D.sub.av over the entire transmission distance and second optical fibers having dispersion values less than the average dispersion value D.sub.av, wherein the average dispersion value D.sub.av over the entire transmission distance is in the anomalous dispersion region, the respective lengths L.sub.i and L.sub.i ' of the first and second optical fibers are shorter than the soliton length Z.sub.0 (wherein i is an arbitrary natural number), and the relationship between the lengths L.sub.i and L.sub.i ' and the larger of the respective differences D.sub.i and D.sub.i ' between the dispersion values of the first and second optical fibers and the average dispersion value D.sub.av satisfies the following condition: (L.sub.i +L.sub.i ')/Z.sub.0
摘要翻译：根据本发明的光纤传输线包括在整个传输距离上具有大于平均色散值Dav的色散值的第一光纤和具有小于平均色散值Dav的色散值的第二光纤，其中平均色散值Dav 在整个传输距离处于异常色散区域中，第一和第二光纤的相应长度Li和Li'短于孤子长度Z0（其中i是任意自然数），并且长度Li 和Li'，并且第一和第二光纤的色散值与平均色散值Dav之间的差值Di和Di'中较大的值满足以下条件：（Li + Li'）/ Z0 <0.35 / {1+ 0.20（Di和Di'/ Dav中的较大者）}

5. 发明申请

US20090161708A1 Optical Communication Light Source Unit and Wavelength Monitoring Control Method 有权
标题翻译：光通信光源单元和波长监控控制方法
公开(公告)号：US20090161708A1
公开(公告)日：2009-06-25
申请号：US11568109
申请日：2006-02-02
申请人： Shingo Kawai , Kiyoshi Matsumoto , Hideo Kawata , Naoto Yoshimoto , Katsumi Iwatsuki
发明人： Shingo Kawai , Kiyoshi Matsumoto , Hideo Kawata , Naoto Yoshimoto , Katsumi Iwatsuki
IPC分类号： H01S3/13 , H01S3/04
CPC分类号： H01S5/0687 , H01S5/0617 , H01S5/06804 , H01S5/0683
摘要： In the present invention, the extremely complicated setting and control and an extremely expensive optical component (wavelength locker) are not required, and optical output wavelength and optical output power can simply be set and controlled at a moderate price. At least one value for determining a dependence of the optical output wavelength on drive current and device temperature and at least one value for determining a dependence of the optical output power on drive current and device temperature in a light emitting device constituting first means 1 for emitting light are stored in fourth means 4. Fifth means 5 determines drive current or optical output power c and device temperature d, at which both the optical output wavelength and optical output power of the light emitting device are separately specified value b, from a relationship among the drive current, device temperature, and optical output wavelength of the light emitting device, the relationship being determined by the at least one value, and a relationship among the drive current, device temperature, and optical output power, the relationship being determined by the at least one value, and the fifth means 5 gives the drive current or optical output power c and device temperature d as target values to second means 2 and third means 3.
摘要翻译：在本发明中，不需要非常复杂的设置和控制以及极其昂贵的光学部件（波长锁定器），并且可以以适中的价格简单地设置和控制光输出波长和光输出功率。用于确定光输出波长对驱动电流和器件温度的依赖性的至少一个值和用于确定构成用于发射的第一装置1的发光器件中的光输出功率对驱动电流和器件温度的依赖性的至少一个值光存储在第四装置4中。第五装置5确定驱动电流或光输出功率c和器件温度d，其中发光器件的光输出波长和光输出功率两者分别指定值b，所述驱动电流，器件温度和所述发光器件的光输出波长，所述关系由所述至少一个值确定，以及所述驱动电流，器件温度和光输出功率之间的关系，所述关系由至少一个值，第五装置5给出驱动电流或光输出功率c和器件温度d 作为第二装置2和第三装置3的目标值。

6. 发明授权

US07869717B2 Optical communication light source unit and wavelength monitoring control method 有权
标题翻译：光通信光源单元和波长监控控制方法
公开(公告)号：US07869717B2
公开(公告)日：2011-01-11
申请号：US11568109
申请日：2006-02-02
申请人： Shingo Kawai , Kiyoshi Matsumoto , Hideo Kawata , Naoto Yoshimoto , Katsumi Iwatsuki
发明人： Shingo Kawai , Kiyoshi Matsumoto , Hideo Kawata , Naoto Yoshimoto , Katsumi Iwatsuki
IPC分类号： H04B10/04 , H01S3/13
CPC分类号： H01S5/0687 , H01S5/0617 , H01S5/06804 , H01S5/0683
摘要： In the present invention, the extremely complicated setting and control and an extremely expensive optical component (wavelength locker) are not required, and optical output wavelength and optical output power can simply be set and controlled at a moderate price. At least one value for determining a dependence of the optical output wavelength on drive current and device temperature and at least one value for determining a dependence of the optical output power on drive current and device temperature in a light emitting device constituting first means 1 for emitting light are stored in fourth means 4. Fifth means 5 determines drive current or optical output power c and device temperature d, at which both the optical output wavelength and optical output power of the light emitting device are separately specified value b, from a relationship among the drive current, device temperature, and optical output wavelength of the light emitting device, the relationship being determined by the at least one value, and a relationship among the drive current, device temperature, and optical output power, the relationship being determined by the at least one value, and the fifth means 5 gives the drive current or optical output power c and device temperature d as target values to second means 2 and third means 3.
摘要翻译：在本发明中，不需要非常复杂的设置和控制以及极其昂贵的光学部件（波长锁定器），并且可以以适中的价格简单地设置和控制光输出波长和光输出功率。用于确定光输出波长对驱动电流和器件温度的依赖性的至少一个值和用于确定构成用于发射的第一装置1的发光器件中的光输出功率对驱动电流和器件温度的依赖性的至少一个值光存储在第四装置4中。第五装置5确定驱动电流或光输出功率c和器件温度d，其中发光器件的光输出波长和光输出功率两者分别指定值b，所述驱动电流，器件温度和所述发光器件的光输出波长，所述关系由所述至少一个值确定，以及所述驱动电流，器件温度和光输出功率之间的关系，所述关系由至少一个值，第五装置5给出驱动电流或光输出功率c和器件温度d 作为第二装置2和第三装置3的目标值。

7. 发明授权

US5483035A System for and method of controlling resistance welder 失效
标题翻译：电阻焊机控制系统及方法
公开(公告)号：US5483035A
公开(公告)日：1996-01-09
申请号：US309654
申请日：1994-09-21
申请人： Shingo Kawai , Kenji Sahashi
发明人： Shingo Kawai , Kenji Sahashi
IPC分类号： B23K11/25 , B23K11/24
CPC分类号： B23K11/253
摘要： A resistance welder controller is disclosed, which controls a resistance welder for welding workpieces clamped between two electrodes with Joule heat generated by passing a welding current between the electrodes. The controller includes a preliminary current passing device for passing preliminary current between the electrodes until the workpieces and the electrodes become intimate with one another, a regular current passing device for passing regular current between the electrodes for welding the workpieces, a current control device for controlling the welding current according to the rate of expansion of the workpieces or the rate of increase of the resistance of the workpieces, and a current passing ending device for ending the welding current at or after an instant when the rate of expansion of the workpieces or the rate of increase of the resistance of the workpieces has become substantially zero.
摘要翻译：公开了一种电阻焊机控制器，其控制电阻焊机用于焊接夹在两个电极之间的工件，其中通过在电极之间通过焊接电流而产生焦耳热。控制器包括用于在电极之间通过预备电流的预备电流通过装置，直到工件和电极彼此亲近，用于在电极之间通过正常电流以焊接工件的常规电流通过装置，用于控制的电流控制装置焊接电流根据工件的膨胀率或工件的电阻的增加率，以及用于在工件的膨胀率或者工件的膨胀率之后或之后结束焊接电流的电流通过结束装置工件的电阻的增加率基本上为零。

8. 发明授权

US07127168B2 Multi-wavelength optical modulation circuit and wavelength-division multiplexed optical signal transmitter 有权
公开(公告)号：US07127168B2
公开(公告)日：2006-10-24
申请号：US10163849
申请日：2002-06-05
申请人： Jun-ichi Kani , Katsuhiro Araya , Noboru Takachio , Koji Akimoto , Mitsuhiro Teshima , Masamichi Fujiwara , Hiroo Suzuki , Shingo Kawai , Katsumi Iwatsuki
发明人： Jun-ichi Kani , Katsuhiro Araya , Noboru Takachio , Koji Akimoto , Mitsuhiro Teshima , Masamichi Fujiwara , Hiroo Suzuki , Shingo Kawai , Katsumi Iwatsuki
IPC分类号： H04B10/00
CPC分类号： H04J14/02 , H04B10/506 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0297
摘要： Multi-wavelength light having a frequency band equal to or greater than the FSR of an AWG is demultiplexed into individual wavelength channels, and power level deviations between wavelength channels are suppressed. An optical demultiplexer includes a wavelength-group demultiplexer that demultiplexes multi-wavelength light into wavelength groups formed from wavelength channels, and channel demultiplexers that demultiplex each wavelength group into wavelength channels light. An optical multiplexer includes channel multiplexers that multiplex modulated signal light of each wavelength channel for each wavelength group, and a wavelength-group multiplexer that multiplexes, for each wavelength group, WDM signal light output from the channel multiplexers. The FSR of the wavelength-group multiplexer/demultiplexer is set to be equal to or greater than the frequency band of the multi-wavelength light. The channel multiplexer/demultiplexer is an AWG in which the FSR is approximately the full width at half maximum of the transmission characteristics of each port of the wavelength-group multiplexer/demultiplexer.

9. 发明授权

US06444942B1 Welding control systems 有权
标题翻译：焊接控制系统
公开(公告)号：US06444942B1
公开(公告)日：2002-09-03
申请号：US09632377
申请日：2000-08-03
申请人： Shingo Kawai , Satoru Kawamatsu
发明人： Shingo Kawai , Satoru Kawamatsu
IPC分类号： B23K1124
CPC分类号： B23K11/252 , G05B2219/36522
摘要： A single teaching apparatus may be provided for all welding control apparatus in a welding control apparatus in order to input the welding sequence data. The internal address of a welding control apparatus 22 and the welding sequence data are output to a field bus from an upper control apparatus 2. Programming is accomplished by storing the welding sequence data output from the upper control apparatus 2 in a designated address of memory unit 28. Programming of the welding control apparatus 22 can be accomplished: using the teaching apparatus 4 provided for the upper control apparatus 2.
摘要翻译：为了输入焊接顺序数据，可以在焊接控制装置中为所有焊接控制装置设置单一的教学装置。焊接控制装置22的内部地址和焊接顺序数据从上位控制装置2输出到现场总线。通过将从上控制装置2输出的焊接序列数据存储在存储单元的指定地址焊接控制装置22的编程可以实现：使用为上位控制装置2提供的教学装置4。

10. 发明授权

US5471028A Resistance welding machine 失效
标题翻译：电阻焊机
公开(公告)号：US5471028A
公开(公告)日：1995-11-28
申请号：US296415
申请日：1994-08-26
申请人： Shingo Kawai
发明人： Shingo Kawai
IPC分类号： B23K11/24 , B23K11/25
CPC分类号： B23K11/255
摘要： A resistance welding machine comprises clamping force representing value measuring means for measuring a clamping force representing value corresponding to a clamping force applied on workpieces by a pair of electrodes, clamping force representing value discriminating means for discriminating whether the clamping force representing value measured by the clamping force representing value measuring means is fluctuating or stabilized, and current supply means for supplying welding current through the electrode pair just after a stabilization timing when the clamping force representing value discriminating means discriminates that the clamping force representing value is stabilized.
摘要翻译：电阻焊机包括夹紧力，其表示用于测量与通过一对电极施加在工件上的夹紧力对应的夹紧力的值测量装置，夹紧力表示值鉴别装置，用于鉴别通过夹紧测量的夹紧力表示值力表示值测量装置是波动或稳定的;以及电流供应装置，用于当紧固力表示值鉴别装置鉴别出夹紧力表示值稳定时，在稳定时刻之后通过电极对提供焊接电流。

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