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1. 发明申请

US20050163421A1 WAVEGUIDE TYPE OPTICAL DEVICE AND POSITION DETECTING METHOD,,. 失效
标题翻译：波导型光学器件和位置检测方法。
公开(公告)号：US20050163421A1
公开(公告)日：2005-07-28
申请号：US10509012
申请日：2003-03-28
申请人： Katsuhiko Kurumada , Toshiaki Tamamura , Masatoshi Kanaya , Shigendo Nishi , Keiichi Akagawa
发明人： Katsuhiko Kurumada , Toshiaki Tamamura , Masatoshi Kanaya , Shigendo Nishi , Keiichi Akagawa
IPC分类号： G01D5/353 , G02B6/26
CPC分类号： G01D5/35345 , G01D5/342
摘要： A waveguide type optical device performs such monitoring as detection of a relative position of an insert plate to a groove. The waveguide type optical device comprises a groove disposed at an intersection position of a first optical waveguide and a second optical waveguide; an insert plate disposed to be insertable into the groove; means for applying a static magnetic field such that a vector product of a velocity vector (A) of the insert plate and its magnetic field vector (B) is nonzero; a cantilever that has electrical wiring including therein a wiring part lying in a direction perpendicular to both the velocity vector and the magnetic field vector and that supports the insert plate; and means for detecting a relative position of the insert plate to the groove by detecting a current induced in the electrical wiring.
摘要翻译：波导型光学器件执行诸如检测插入板相对于凹槽的相对位置的监视。波导型光学器件包括设置在第一光波导和第二光波导的交叉位置处的槽; 插入板，其设置成可插入到所述凹槽中; 用于施加静态磁场的装置，使得插入板的速度矢量（A）和其磁场矢量（B）的矢量积不为零; 具有电线的悬臂，其中包括布置部分，所述布线部分位于垂直于所述速度矢量和所述磁场矢量的方向上并且支撑所述插入板; 以及用于通过检测在所述电线中感应出的电流来检测所述插入板到所述凹槽的相对位置的装置。

2. 发明授权

US5724126A Method for measuring distribution of zero dispersion wavelengths in an optical fiber and apparatus therefor 失效
标题翻译：用于测量光纤中零色散波长分布的方法及其装置
公开(公告)号：US5724126A
公开(公告)日：1998-03-03
申请号：US435640
申请日：1995-05-05
申请人： Shigendo Nishi , Katsumi Iwatsuki , Ken-ichi Suzuki , Masatoshi Saruwatari
发明人： Shigendo Nishi , Katsumi Iwatsuki , Ken-ichi Suzuki , Masatoshi Saruwatari
IPC分类号： G01M11/00 , G01N21/41 , G01N21/84
CPC分类号： G01M11/3181 , G01M11/319
摘要： In the method of measuring a distribution of zero dispersion wavelengths in an optical fiber in a longitudinal direction, an optical pulse and a pump light are launched into the optical fiber. A gain generation portion of the optical fiber which indicates that the optical pulse power is amplified based on modulation instability induced by the pump light is detected from a back-scattered light waveform of the optical pulse indicative of an optical pulse power distribution in the longitudinal direction of the optical fiber. A zero dispersion wavelength of the gain generation portion of the optical fiber is determined from the pump light wavelength.
摘要翻译：在测量光纤中长度方向的零色散波长分布的方法中，光脉冲和泵浦光被发射到光纤中。根据表示在纵向的光脉冲功率分布的光脉冲的反向散射光波形来检测表示基于由泵浦光引起的调制不稳定性的光脉冲功率被放大的光纤的增益产生部分的光纤。根据泵浦光波长确定光纤的增益产生部分的零色散波长。

3. 发明授权

US5083874A Optical repeater and optical network using the same 失效
标题翻译：使用光学重复器和光网络
公开(公告)号：US5083874A
公开(公告)日：1992-01-28
申请号：US506906
申请日：1990-04-10
申请人： Kazuo Aida , Shigendo Nishi , Masatoshi Saruwatari , Kiyoshi Nakagawa
发明人： Kazuo Aida , Shigendo Nishi , Masatoshi Saruwatari , Kiyoshi Nakagawa
IPC分类号： H04B10/291 , H04B10/293 , H04B10/294
CPC分类号： H04B10/2912 , H04B10/291 , H04B10/2935 , H04B10/2941 , H04B2210/258
摘要： At least one optical repeater is connected in series to an optical signal transmission fiber of an optical fiber cable interconnecting transmitting and receiving terminals, and the optical repeater has an optical amplifier which is excited by pump light to amplify signal light. The pump light is supplied from the outside of the optical repeater, and the pump light supplied is input into the optical amplifier via at least one of its input end and output end. The optical repeater may include an optical divider for dividing the pump light supplied thereto into two, which are input into the optical amplifier via its input end and output end, respectively.

4. 发明授权

US5005937A Optical branching equipment and optical network using the same 失效
标题翻译：光分支设备和光网络使用相同
公开(公告)号：US5005937A
公开(公告)日：1991-04-09
申请号：US506832
申请日：1990-04-10
申请人： Kazuo Aida , Shigendo Nishi , Kiyoshi Nakagawa
发明人： Kazuo Aida , Shigendo Nishi , Kiyoshi Nakagawa
IPC分类号： H04B10/27 , H04B10/272 , H04B10/278 , H04B10/291 , H04B10/293
CPC分类号： H04B10/278 , H04B10/27 , H04B10/2725 , H04B10/291 , H04B10/2912 , H04B10/2931 , H04B10/2939
摘要： In optical branching equipment which is supplied with an optical signal of a first wavelength band from a trunk line terminal equipment via a trunk line cable and is inserted in the trunk line, the optical signal is normally provided to the trunk line cable after being bypassed from a branching circuit to branch line terminal equipment connected to a branch line cable, and when trouble develops in the branch line, the optical signal is delivered to the trunk line cable via a short circuit. In the short circuit there is inserted an optical limiter amplifier which is capable of amplifying light of the first and second wavelength bands. Normally the optical limiter amplifier is saturated by control light of the second wavelength supplied from the branch line terminal equipment via the branch line cable, and consequently, the optical signal of the first wavelength band is suppressed. When the supply of the control light is stopped by some cause, the optical limiter amplifier amplifies the optical signal of the wavelength band provided to the short circuit and provides the amplified optical signal to the trunk line cable.

5. 发明授权

US07006722B2 Waveguide type optical device and position detecting method 失效
标题翻译：波导型光学装置及位置检测方法
公开(公告)号：US07006722B2
公开(公告)日：2006-02-28
申请号：US10509012
申请日：2003-03-28
申请人： Katsuhiko Kurumada , Toshiaki Tamamura , Masatoshi Kanaya , Shigendo Nishi , Keiichi Akagawa
发明人： Katsuhiko Kurumada , Toshiaki Tamamura , Masatoshi Kanaya , Shigendo Nishi , Keiichi Akagawa
IPC分类号： G02B6/26
CPC分类号： G01D5/35345 , G01D5/342
摘要： A waveguide type optical device performs such monitoring as detection of a relative position of an insert plate to a groove. The waveguide type optical device comprises a groove disposed at an intersection position of a first optical waveguide and a second optical waveguide; an insert plate disposed to be insertable into the groove; means for applying a static magnetic field such that a vector product of a velocity vector (A) of the insert plate and its magnetic field vector (B) is nonzero; a cantilever that has electrical wiring including therein a wiring part lying in a direction perpendicular to both the velocity vector and the magnetic field vector and that supports the insert plate; and means for detecting a relative position of the insert plate to the groove by detecting a current induced in the electrical wiring.
摘要翻译：波导型光学器件执行诸如检测插入板相对于凹槽的相对位置的监视。波导型光学器件包括设置在第一光波导和第二光波导的交叉位置处的槽; 插入板，其设置成可插入到所述凹槽中; 用于施加静态磁场的装置，使得插入板的速度矢量（A）和其磁场矢量（B）的矢量积不为零; 具有电线的悬臂，其中包括布置部分，所述布线部分位于垂直于所述速度矢量和所述磁场矢量的方向上并且支撑所述插入板; 以及用于通过检测在所述电线中感应出的电流来检测所述插入板到所述凹槽的相对位置的装置。

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