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1. 发明授权

US5351335A Optical fiber for optical amplifier 失效
标题翻译：光放大器用光纤
公开(公告)号：US5351335A
公开(公告)日：1994-09-27
申请号：US934242
申请日：1992-08-25
申请人： Yasutake Ohishi , Terutoshi Kanamori , Yoshiki Nishida , Atsushi Mori , Shoichi Sudo
发明人： Yasutake Ohishi , Terutoshi Kanamori , Yoshiki Nishida , Atsushi Mori , Shoichi Sudo
IPC分类号： C03C4/00 , C03C13/04 , H01S3/067 , H01S3/16 , H01S3/17 , G02B6/00
CPC分类号： H01S3/06716 , C03C13/042 , C03C4/0071 , H01S3/1608 , H01S3/1611 , H01S3/1613 , H01S3/1618 , H01S3/173
摘要： Fluoride glass-based optical fiber for an optical amplifier which contains rare earth metal ions in the core glass has a relative refractive index difference .DELTA..sub.n between the core and the cladding of 1.4% or more. The core glass contains PbF.sub.2 in a proportion of 25 mol % or less based on the total composition of the core glass . The fluoride glass is doped with rare earth metal ions, and part of the fluorine in the glass may be substituted by at least one halogen. Pr.sup.3+, Pr.sup.3+ --Yb.sup.3+, Pr.sup.3+ --Nd.sup.3+, or Pr.sup.3+ --Er.sup.3+ can be doped as the rare earth metal ions. Chlorine, bromine or iodine may be used as the halogen.
摘要翻译：用于在芯玻璃中含有稀土金属离子的光放大器的氟化物玻璃基光纤，芯和包层之间的相对折射率差ΔTATAn为1.4％以上。芯玻璃含有基于芯玻璃的总组成为25摩尔％以下的PbF 2。氟化物玻璃掺杂有稀土金属离子，玻璃中的一部分氟可被至少一个卤素取代。可掺杂Pr3 +，Pr3 + -Yb3 +，Pr3 + -Nd3 +或Pr3 + -Er3 +作为稀土金属离子。可以使用氯，溴或碘作为卤素。

2. 发明授权

US5486947A Optical fiber for optical amplifier 失效
标题翻译：光放大器用光纤
公开(公告)号：US5486947A
公开(公告)日：1996-01-23
申请号：US238936
申请日：1994-05-06
申请人： Yasutake Ohishi , Terutoshi Kanamori , Yoshiki Nishida , Atsushi Mori , Shoichi Sudo
发明人： Yasutake Ohishi , Terutoshi Kanamori , Yoshiki Nishida , Atsushi Mori , Shoichi Sudo
IPC分类号： C03C4/00 , C03C13/04 , H01S3/067 , H01S3/16 , H01S3/17
CPC分类号： H01S3/06716 , C03C13/042 , C03C4/0071 , H01S3/1608 , H01S3/1611 , H01S3/1613 , H01S3/1618 , H01S3/173
摘要： Fluoride glass-based optical fiber for an optical amplifier which contains rare earth metal ions in the core glass has a relative refractive index difference .DELTA.n between the core and the cladding of 1.4% or more. The core glass contains PbF.sub.2 in a proportion of 25 mol % or less based on the total composition of the core glass. The fluoride glass is doped with rare earth metal ions, and part of the fluorine in the glass may be substituted by at least one halogen Pr.sup.3+, Pr.sup.3+ --Yb.sup.3+, Pr.sup.3+ --Nd.sup.3+, or Pr.sup.3+ --Er.sup.3+ can be doped as the rare earth metal ions. Chlorine, bromine or iodine may be used as the halogen.
摘要翻译：用于在芯玻璃中含有稀土金属离子的光放大器的氟化物玻璃基光纤，芯和包层之间的相对折射率差ΔTATAn为1.4％以上。芯玻璃含有基于芯玻璃的总组成为25摩尔％以下的PbF 2。氟化物玻璃掺杂有稀土金属离子，玻璃中的氟的一部分可以被至少一个卤素代替Pr3 +，Pr3 + -Yb3 +，Pr3 + -Nd3 +或Pr3 + -Er3 +作为稀土金属离子掺杂。可以使用氯，溴或碘作为卤素。

3. 发明授权

US5774620A Fluoride glass fiber 失效
标题翻译：氟化物玻璃纤维
公开(公告)号：US5774620A
公开(公告)日：1998-06-30
申请号：US788385
申请日：1997-01-24
申请人： Yoshiki Nishida , Terutoshi Kanamori , Tadashi Sakamoto , Yasutake Ohishi , Shoichi Sudo
发明人： Yoshiki Nishida , Terutoshi Kanamori , Tadashi Sakamoto , Yasutake Ohishi , Shoichi Sudo
IPC分类号： G02B6/00 , C03C3/32 , C03C13/04
CPC分类号： C03C3/325 , C03C13/042
摘要： This invention relates to fluoride glass with a specific composition having wide infrared transmission. A fluoride optical fiber using this fluoride glass can give high efficiency with a low loss. The fluoride optical fiber having a second cladding on the outer periphery of a first cladding can adjust the refractive index of the first cladding suitably.
摘要翻译：本发明涉及具有较宽的红外线透射率的具体组成的氟化物玻璃。使用这种氟化物玻璃的氟化物光纤可以以低损耗提供高效率。在第一包层的外周具有第二包层的氟化物光纤可以适当地调节第一包层的折射率。

4. 发明申请

US20100039699A1 Wavelength Converter and Wavelength Conversion Apparatus 有权
标题翻译：波长转换器和波长转换装置
公开(公告)号：US20100039699A1
公开(公告)日：2010-02-18
申请号：US12440006
申请日：2007-09-28
申请人： Masaki Asobe , Takeshi Umeki , Osamu Tadanaga , Yoshiki Nishida , Tsutomu Yanagawa , Katsuaki Magari , Hiroyuki Suzuki
发明人： Masaki Asobe , Takeshi Umeki , Osamu Tadanaga , Yoshiki Nishida , Tsutomu Yanagawa , Katsuaki Magari , Hiroyuki Suzuki
IPC分类号： G02F1/39 , G02F1/37
CPC分类号： G02F1/3534 , G02F1/3544 , G02F1/395 , G02F2001/3548 , G02F2201/128
摘要： A wavelength converter which performs simultaneously wavelength conversion for a plurality of input light wavelengths that are unequally intervals, is provided. The nonlinear material of the wavelength converter has a modulation structure which has modulation of a nonlinear optical constant at a period Λ0 in a propagating direction of light, a phase being continuously changed each period Λ0 and a continuous phase modulation for a different period Λph being added to the modulation structure. The nonlinear material has a modulation structure obtained by changing a modulation curve for the phase modulation, wherein a phase mismatch Δβ is represented by Δβ=2π(n3/λ3−n2/λ2−n1/λ1), and at least three peaks at unequally intervals within a plurality of peaks for conversion efficiency represented by 2π/Λ0+2πi/Λf (i=m, m+1, . . . , n: where m and n are positive or negative integers) have highest conversion efficiency.
摘要翻译：提供了对于不等间隔的多个输入光波长同时进行波长转换的波长转换器。波长转换器的非线性材料具有调制结构，该调制结构在光的传播方向上具有在周期Λ0处的非线性光学常数的调制，每个周期Λ0连续地改变相位，并且对不同周期的连续相位调制Λph被添加到调制结构。非线性材料具有通过改变相位调制的调制曲线而获得的调制结构，其中相位失配＆Dgr; 由＆Dgr;＆bgr; = 2＆pgr;（n3 /λ3-n2 /λ2-n1 /λ1）表示，并且在由2＆pgr; /Λ0+ 2＆pgr i表示的转换效率的多个峰内以不等间隔的至少三个峰 /Λf（i = m，m + 1，...，n：其中m和n是正整数或负整数）具有最高的转换效率。

5. 发明申请

US20060108206A1 Belt conveyor and associated equipment 有权
标题翻译：皮带输送机及相关设备
公开(公告)号：US20060108206A1
公开(公告)日：2006-05-25
申请号：US11264723
申请日：2005-11-01
申请人： Takashi Kotaki , Tsunetoshi Goto , Yoshiki Nishida
发明人： Takashi Kotaki , Tsunetoshi Goto , Yoshiki Nishida
IPC分类号： B65G15/60
CPC分类号： B65G15/62 , B65G15/08 , B65G39/125 , B65G39/16 , B65G2201/02 , B65G2201/04
摘要： Disclosed is a belt conveyor capable of greatly reducing friction resistance between side portions of a belt and troughs, comprising troughs (5), a belt moving above the troughs (5) along a longitudinal direction thereof, belt bending members (12) provided outside on both sides of the belt in the width direction so as to be located upstream of an entrance (5a) of the troughs, for abutting with both side portions of the belt to be bent upwardly, load cells (14) for detecting a reactive force exerted by the belt with which the belt bending members (12) make contact, guide rails (16) engaged to cause the belt bending members (12) to be displaced to be fixed at a desired position so as to bend the side portions of the belt or restore the bent belt, and rails (20) for moving the guide rails (16) along the longitudinal direction of the belt.
摘要翻译：公开了一种带式输送机，其能够大大降低带和槽的侧部之间的摩擦阻力，包括槽（5），沿着其纵向方向在槽（5）上移动的带，带外弯曲构件（12）沿宽度方向的两侧，以便位于槽的入口（5a）的上游，用于与带的两侧部分邻接以向上弯曲，用于检测反作用力的称重传感器（14）由带弯曲构件（12）与其接触的带施加，导轨（16）接合以使带弯曲构件（12）移位以固定在期望位置，以便弯曲带或恢复弯曲的带，以及用于沿着带的纵向方向移动导轨（16）的轨道（20）。

6. 发明授权

US07940451B2 Wavelength converter and wavelength conversion apparatus 有权
标题翻译：波长转换器和波长转换装置
公开(公告)号：US07940451B2
公开(公告)日：2011-05-10
申请号：US12440006
申请日：2007-09-28
申请人： Masaki Asobe , Takeshi Umeki , Osamu Tadanaga , Yoshiki Nishida , Tsutomu Yanagawa , Katsuaki Magari , Hiroyuki Suzuki
发明人： Masaki Asobe , Takeshi Umeki , Osamu Tadanaga , Yoshiki Nishida , Tsutomu Yanagawa , Katsuaki Magari , Hiroyuki Suzuki
IPC分类号： G02F1/37
CPC分类号： G02F1/3534 , G02F1/3544 , G02F1/395 , G02F2001/3548 , G02F2201/128
摘要： A wavelength converter which performs simultaneously wavelength conversion for a plurality of input light wavelengths that are unequally intervals, is provided. The nonlinear material of the wavelength converter has a modulation structure which has modulation of a nonlinear optical constant at a period Λ0 in a propagating direction of light, a phase being continuously changed each period Λ0 and a continuous phase modulation for a different period Λph being added to the modulation structure. The nonlinear material has a modulation structure obtained by changing a modulation curve for the phase modulation, wherein a phase mismatch Δβ is represented by Δβ=2π(n3/λ3−n2/λ2−n1/λ1), and at least three peaks at unequally intervals within a plurality of peaks for conversion efficiency represented by 2π/Λ0+2πi/Λf (i=m, m+1, . . . , n: where m and n are positive or negative integers) have highest conversion efficiency.
摘要翻译：提供了对于不等间隔的多个输入光波长同时进行波长转换的波长转换器。波长转换器的非线性材料具有调制结构，该调制结构在光的传播方向上具有在周期Λ0处的非线性光学常数的调制，每个周期Λ0连续地改变相位，并且对不同周期的连续相位调制Λph被添加到调制结构。非线性材料具有通过改变相位调制的调制曲线而获得的调制结构，其中相位失配＆Dgr; 由＆Dgr;＆bgr; = 2＆pgr（n3 /λ3-n2 /λ2-n1 /λ1）表示，并且在由2＆pgr; /Λ0+ 2＆pgr i表示的转换效率的多个峰内的不等间隔处的至少三个峰 /Λf（i = m，m + 1，...，n：其中m和n是正整数或负整数）具有最高的转换效率。

7. 发明授权

US07391795B2 Laser light source 有权
标题翻译：激光光源
公开(公告)号：US07391795B2
公开(公告)日：2008-06-24
申请号：US10531485
申请日：2004-07-30
申请人： Junji Yumoto , Osamu Tadanaga , Masaki Asobe , Hiroyuki Suzuki , Kaoru Yoshino , Hiroshi Miyazawa , Yoshiki Nishida , Hirohisa Kanbara , Tsutomu Yanagawa , Eishi Kubota , Hiroyasu Mawatari
发明人： Junji Yumoto , Osamu Tadanaga , Masaki Asobe , Hiroyuki Suzuki , Kaoru Yoshino , Hiroshi Miyazawa , Yoshiki Nishida , Hirohisa Kanbara , Tsutomu Yanagawa , Eishi Kubota , Hiroyasu Mawatari
IPC分类号： H01S3/10
CPC分类号： G02F1/3775 , G01N21/3504 , G01N21/39 , G02F1/3534 , H01S5/4087
摘要： The invention provides a compact laser light source whose wavelength can be designed freely in a wavelength band in which the semiconductor laser has not been put to practical use by combining an efficient nonlinear optical crystal and high-power semiconductor lasers for optical communication. In one embodiment, the laser light source includes: a first laser for generating a laser beam of a wavelength λ1; a second laser for generating a laser beam of a wavelength λ2; and a nonlinear optical crystal that allows the laser beam of wavelength λ1 and the laser beam of wavelength λ2 as inputs and outputs a coherent beam having a wavelength λ3 of a sum frequency that satisfies a relationship of 1/λ1+1/λ2=1/λ3. The wavelength λ3 of the sum frequency is 589.3±2 nm that is equivalent to the sodium D line.
摘要翻译：本发明提供一种紧凑的激光光源，其波长可以通过组合有效的非线性光学晶体和用于光通信的大功率半导体激光器而在半导体激光器尚未投入实际使用的波长带中自由设计。在一个实施例中，激光光源包括：用于产生波长λ1的激光束的第一激光器; 用于产生波长λ2的激光束的第二激光器; 以及允许波长λ1的激光束和波长λ2的激光束作为输入的非线性光学晶体，并输出具有波长λ< 3和满足1 /λ1 + 1 /λ2/1 /λ3 3的关系的和频。和频率的波长λ3 <3 SUB是相当于钠D线的589.3±2nm。

8. 发明授权

US07299917B2 Belt conveyor and associated equipment 有权
标题翻译：皮带输送机及相关设备
公开(公告)号：US07299917B2
公开(公告)日：2007-11-27
申请号：US11264723
申请日：2005-11-01
申请人： Takashi Kotaki , Tsunetoshi Goto , Yoshiki Nishida
发明人： Takashi Kotaki , Tsunetoshi Goto , Yoshiki Nishida
IPC分类号： B65G15/60
CPC分类号： B65G15/62 , B65G15/08 , B65G39/125 , B65G39/16 , B65G2201/02 , B65G2201/04
摘要： Disclosed is a belt conveyor capable of greatly reducing friction resistance between side portions of a belt and troughs, comprising troughs (5), a belt moving above the troughs (5) along a longitudinal direction thereof, belt bending members (12) provided outside on both sides of the belt in the width direction so as to be located upstream of an entrance (5a) of the troughs, for abutting with both side portions of the belt to be bent upwardly, load cells (14) for detecting a reactive force exerted by the belt with which the belt bending members (12) make contact, guide rails (16) engaged to cause the belt bending members (12) to be displaced to be fixed at a desired position so as to bend the side portions of the belt or restore the bent belt, and rails (20) for moving the guide rails (16) along the longitudinal direction of the belt.
摘要翻译：公开了一种带式输送机，其能够大大降低带和槽的侧部之间的摩擦阻力，包括槽（5），沿着其纵向方向在槽（5）上移动的带，带外弯曲构件（12）沿宽度方向的两侧，以便位于槽的入口（5a）的上游，用于与带的两侧部分邻接以向上弯曲，用于检测反作用力的称重传感器（14）由带弯曲构件（12）与其接触的带施加，导轨（16）接合以使带弯曲构件（12）移位以固定在期望位置，以便弯曲带或恢复弯曲的带，以及用于沿着带的纵向方向移动导轨（16）的轨道（20）。

9. 发明授权

US06806986B2 Wavelength converter and wavelength converting apparatus 失效
标题翻译：波长转换器和波长转换装置
公开(公告)号：US06806986B2
公开(公告)日：2004-10-19
申请号：US10456073
申请日：2003-06-06
申请人： Masaki Asobe , Osamu Tadanaga , Hiroshi Miyazawa , Yoshiki Nishida , Hiroyuki Suzuki
发明人： Masaki Asobe , Osamu Tadanaga , Hiroshi Miyazawa , Yoshiki Nishida , Hiroyuki Suzuki
IPC分类号： G02F101
CPC分类号： G02F1/3775 , G02F1/3534 , G02F2001/3548
摘要： A wavelength converter has a phase modulated periodically modulated structure, where a nonlinear optical coefficient is periodically modulated at a fundamental period &Lgr;0 and the phase of the modulation varies nearly continuously, and the phase variation of the modulation unit structure is repeated at a period &Lgr;ph (>&Lgr;0). A conversion efficiency is made maximum when a phase mismatch amount &Dgr;&bgr; equals 2&pgr;/&Lgr;0±2&pgr;i/&Lgr;ph (i=0, 1, . . . , n, where n is a positive integer), 2&pgr;/&Lgr;0±2&pgr;(2i+1)/&Lgr;ph (i=0, 1, . . . , n), or 2&pgr;/&Lgr;0+2&pgr;i/&Lgr;f (i=m, m+1, . . . . n, where m and n are positive or negative integers satisfying |m|≠|n|), thereby providing a wavelength converter and wavelength converting apparatus that can be designed to be able to cope with a desired number of pump wavelengths, prevent the reduction in the conversion efficiency, and be configured easily using a practical size of a nonlinear optical material.
摘要翻译：波长转换器具有相位调制的周期性调制结构，其中非线性光学系数在基本周期λλ周期性地调制，并且调制相位几乎连续变化，并且调制单元结构的相位变化在时间段Lambdaph（ > Lambda0）。当相位不匹配量Deltabeta等于2pi / Lambda0±2pii / Lambdaph（i = 0,1，...，n，其中n为正整数），2pi / Lambda0±2pi（2i + 1）时，转换效率最大）/ Lambdaph（i = 0,1，...，n）或2pi / Lambda0 + 2pii / Lambdaf（i = m，m + 1，...，n，其中m和n是满足 | m | <> | n |），从而提供可被设计为能够处理期望数量的泵浦波长的波长转换器和波长转换装置，防止转换效率的降低，并且可以容易地使用非线性光学材料的实际尺寸。

10. 发明授权

US06721092B2 Thulium-doped fiber amplifier using pump light for improving conversion efficiency in a S-band 有权
标题翻译：掺镱光纤放大器，采用泵浦光，提高S波段的转换效率
公开(公告)号：US06721092B2
公开(公告)日：2004-04-13
申请号：US10079209
申请日：2002-02-20
申请人： Shinichi Aozasa , Hiroji Masuda , Tadashi Sakamoto , Makoto Shimizu , Yoshiki Nishida
发明人： Shinichi Aozasa , Hiroji Masuda , Tadashi Sakamoto , Makoto Shimizu , Yoshiki Nishida
IPC分类号： H01S300
CPC分类号： H01S3/06754 , H01S3/06708 , H01S3/06758 , H01S3/094003 , H01S3/094011 , H01S3/0941 , H01S3/1616 , H01S3/2333 , H01S2303/00
摘要： An optical fiber amplifier with a high conversion efficiency, which is capable of using the pump light in the wavelength band that can be emitted by the laser diode, is formed by an amplification optical fiber containing thulium at least in a core, to which a signal light is to be entered, and a pump light input unit configured to enter at least one pump light with a wavelength in a range of 1320-1520 nm, or more preferably 1320-1480 nm, into the amplification optical amplifier.
摘要翻译：能够使用能够由激光二极管发射的波长带中的泵浦光的具有高转换效率的光纤放大器由至少在芯中包含th an的放大光纤形成，信号进入光，泵浦光输入部被配置为将至少一个波长在1320-1520nm，更优选1320-1480nm的泵浦光输入到放大光放大器中。

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