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1. 发明授权

US06614511B1 Light wavelength dispersion measuring apparatus and light wavelength dispersion measuring method 失效
标题翻译：光波长色散测量装置和光波长色散测量方法
公开(公告)号：US06614511B1
公开(公告)日：2003-09-02
申请号：US09697903
申请日：2000-10-27
申请人： Yoshiyuki Sakairi , Takao Minami
发明人： Yoshiyuki Sakairi , Takao Minami
IPC分类号： G01N2100
CPC分类号： G01M11/332 , G01J9/00 , G01M11/335 , G01M11/338
摘要： In a light wavelength dispersion measuring apparatus 1, three band-pass filters BPa1 to BPa3 are connected in parallel, three band-pass filters BPb1 to BPb3 are connected in parallel, and three phase comparators PCa to PCc are connected in parallel for making it possible to conduct phase difference measurement of the nth-order harmonics (n=1, 4, 8) at the same time, so that a wavelength dispersion calculator 10 can calculate the wavelength dispersion values of the nth-order harmonics (n=1, 4, 8) at the same time. As a result, measurement time of measuring the wavelength dispersion characteristic in the light wavelength dispersion measuring apparatus 1 can be shortened.
摘要翻译：在光波长色散测量装置1中，并联连接三个带通滤波器BPa1至BPa3，并联连接三个带通滤波器BPb1至BPb3，并联连接三个相位比较器PCa至PCc，以使其成为可能同时进行n次谐波（n = 1,4,8）的相位差测量，使得波长色散计算器10可以计算n次谐波的波长色散值（n = 1,4 ，8）同时。结果，可以缩短测量光波长色散测量装置1中的波长色散特性的测量时间。

2. 发明授权

US06570649B2 Optical fiber characteristics measuring device and optical fiber characteristics measuring method 失效
标题翻译：光纤特性测量装置和光纤特性测量方法
公开(公告)号：US06570649B2
公开(公告)日：2003-05-27
申请号：US09820725
申请日：2001-03-30
申请人： Yoshiyuki Sakairi
发明人： Yoshiyuki Sakairi
IPC分类号： G01N2100
CPC分类号： G01M11/3145
摘要： An optical fiber characteristics measuring device includes a pulse driving circuit, a first optical directional coupler, a second optical directional coupler, a third optical directional coupler, a photoelectric transducer, and a bias circuit. The frequency of the backward scattered light is detected based on the electric signal in the device.
摘要翻译：光纤特性测量装置包括脉冲驱动电路，第一光学定向耦合器，第二光学定向耦合器，第三光学定向耦合器，光电传感器和偏置电路。基于设备中的电信号来检测反向散射光的频率。

3. 发明授权

US06215569B1 E/O switch controlling apparatus and method for controlling E/O switch 失效
标题翻译： E / O开关控制装置及控制E / O开关的方法
公开(公告)号：US06215569B1
公开(公告)日：2001-04-10
申请号：US09580719
申请日：2000-05-30
申请人： Yoshiyuki Sakairi
发明人： Yoshiyuki Sakairi
IPC分类号： H04J1402
CPC分类号： G02F1/0327
摘要： A switch controlling device supplies, to an E/O switch 2 incorporating LiNbO3, an applied voltage having a prescribed voltage value, a light transmission/interruption control signal 32 of controlling the transmission/interruption of an optical input 2a in the E/O switch 2 and a charging/discharging control signal 33 of controlling exchange between the charging operation and discharging operation for the LiNbO3 crystal in the E/O switch 2. The charging/discharging control signal 33 has a signal having a period of 1 to 20 (inclusive) sec. While the optical output 2a is controlled to be transmitted by the light transmission/interruption control signal 32, the charging/discharging control signal 33 does not instruct exchange between the charging operation and the discharging operation.
摘要翻译：开关控制装置向装有LiNbO 3的E / O开关2提供具有规定电压值的施加电压，控制E / O开关中的光输入2a的发送/中断的光传输/中断控制信号32 2和充电/放电控制信号33，用于控制E / O开关2中的LiNbO 3晶体的充电操作和放电操作之间的交换。充电/放电控制信号33具有周期为1至20（包括）秒当光输出2a被光传输/中断控制信号32控制为传输时，充电/放电控制信号33不指示充电操作和放电操作之间的交换。

4. 发明授权

US06700655B2 Optical fiber characteristic measuring device 失效
标题翻译：光纤特性测量装置
公开(公告)号：US06700655B2
公开(公告)日：2004-03-02
申请号：US10132653
申请日：2002-04-24
申请人： Haruyoshi Uchiyama , Yoshiyuki Sakairi
发明人： Haruyoshi Uchiyama , Yoshiyuki Sakairi
IPC分类号： G01N2100
CPC分类号： G01M11/319
摘要： Optical fiber characteristic measuring device comprising a coherent light supply device, a light pulse generating device, a wave mixing device, a opto-electrical converting device, and a processing device, is provided such that parts have the frequency characteristic for corresponding to low frequency component for an opto-electrical converting device and a processing section so as to reduce the cost of the circuits.
摘要翻译：提供包括相干光供给装置，光脉冲发生装置，波混合装置，光电转换装置和处理装置的光纤特性测量装置，使得部件具有对应于低频分量的频率特性用于光电转换装置和处理部分，以便降低电路的成本。

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