公开(公告)号：US20070160374A1

公开(公告)日：2007-07-12

申请号：US11403610

申请日：2006-04-13

Applicant: Kensuke Matsui ,  Tetsuya Kiyonaga ,  Takahiro Fujimoto ,  Hiroshi Yamada

Inventor： Kensuke Matsui ,  Tetsuya Kiyonaga ,  Takahiro Fujimoto ,  Hiroshi Yamada

IPC: H04B10/04

CPC classification number: H04B10/504

Abstract: An optical transmitter includes a laser diode drive circuit for driving a laser diode in accordance with a laser diode current that superimposes a pilot signal on a “0” logic level and a “1” logic level of a transmission signal, the pilot signal having a low-frequency compared with the transmission signal, so as to become an opposite phase each other, a monitor circuit for monitoring an optical output of the laser diode, a filter circuit for extracting a low-frequency component of the pilot signal from an output of the monitor circuit, a phase compare circuit for comparing a phase of the low-frequency component of the pilot signal extracted by the filter circuit with a phase of the pilot signal, and a deterioration judgment circuit for judging whether or not the laser diode deteriorates in accordance with a comparison result of the phase compare circuit.

Abstract translation: 光发射机包括：激光二极管驱动电路，用于根据激光二极管电流驱动激光二极管，激光二极管电流将导频信号叠加在“0”逻辑电平和“1”逻辑电平的传输信号上，该导频信号具有 低频与传输信号相比，以便成为相反的相位，用于监视激光二极管的光输出的监视电路，用于从导频信号的输出中提取导频信号的低频分量的滤波电路 监视电路，用于将由滤波电路提取的导频信号的低频分量的相位与导频信号的相位进行比较的相位比较电路，以及用于判断激光二极管是否劣化的劣化判断电路 根据相位比较电路的比较结果。

公开(公告)号：US20070076771A1

公开(公告)日：2007-04-05

申请号：US11356225

申请日：2006-02-17

Applicant: Takahiro Fujimoto ,  Kensuke Matsui ,  Tetsuya Kiyonaga ,  Hiroshi Yamada

Inventor： Takahiro Fujimoto ,  Kensuke Matsui ,  Tetsuya Kiyonaga ,  Hiroshi Yamada

IPC: H01S3/00

CPC classification number: H01S5/06804 ,  H01S5/0617 ,  H01S5/06812 ,  H01S5/06832

Abstract: An apparatus for controlling an extinction ratio of a light-emitting device, includes: a temperature detecting unit that detects a temperature of the device; a power detecting unit that detects an optical output power of the device; a modulation-current detecting unit that detects a modulation current input into the device; a POW computing unit that computes a power control value for the device based on the temperature; and an ER computing unit that computes an extinction ratio control value for the device based on the power control value, the optical output power, and the modulation current.

Abstract translation: 一种用于控制发光装置的消光比的装置，包括：温度检测单元，其检测装置的温度; 功率检测单元，其检测所述装置的光输出功率; 调制电流检测单元，其检测输入到所述装置的调制电流; POW计算单元，其基于温度计算设备的功率控制值; 以及基于功率控制值，光输出功率和调制电流来计算器件的消光比控制值的ER计算单元。

公开(公告)号：US08045860B2

公开(公告)日：2011-10-25

申请号：US12318526

申请日：2008-12-30

Applicant: Kensuke Matsui ,  Takahiro Fujimoto

Inventor： Kensuke Matsui ,  Takahiro Fujimoto

IPC: H04B10/00

CPC classification number: H04B10/40

Abstract: An optical transceiver stores an output A/D value which is A/D-converted from reference voltage in an EEPROM as correction data in preparing the optical transceiver. The optical transceiver, receiving a request for outputting a monitored value from an external device connected therewith, calculates a variation based on difference between the output A/D value which is A/D-converted from the reference voltage at the timing when the request for outputting the monitored value is received and the correction data stored in the EEPROM. Then, the optical transceiver uses the calculated variation to convert current of light-input power which is input thereinto into voltage, amplify the voltage, and A/D-convert the voltage to thereby correct the output A/D value. The optical transceiver outputs the corrected A/D value to the connected external device as the monitored value.

Abstract translation: 光收发器将在EEPROM中的参考电压进行A / D转换的输出A / D值存储在准备光收发器中作为校正数据。 从收发与外部连接的外部装置输出监视值的请求的光收发信机，根据在请求的时刻的基准电压的A / D转换后的输出A / D值之差， 输出监视值并将修正数据存储在EEPROM中。 然后，光收发器使用计算的变化将输入的光输入功率的电流转换为电压，放大电压，并对电压进行A / D转换，从而校正输出A / D值。 光收发器将校正的A / D值作为监视值输出到连接的外部设备。

公开(公告)号：US07474818B2

公开(公告)日：2009-01-06

申请号：US11355016

申请日：2006-02-16

Applicant: Hideto Momose ,  Yuichi Sawai ,  Takashi Naito ,  Kensuke Matsui

Inventor： Hideto Momose ,  Yuichi Sawai ,  Takashi Naito ,  Kensuke Matsui

IPC: G02B6/26

CPC classification number: G02F1/3515 ,  B82Y20/00 ,  G02F1/0126 ,  G02F1/0147 ,  G02F2202/36 ,  Y10T428/24942

Abstract: An optical switch for switching signal light by allowing the signal light to obliquely enter a non-linear optical thin film 1 containing nano-crystal of metal oxide from a light path disposed in an optical material, and irradiating visible excitation light to the non-linear optical thin film to induce a total reflection phenomenon, thereby controlling the reflection and transmission behavior of the signal light, wherein a difference between a temperature coefficient factor of an optical index of the non-linear optical thin film and that of an optical index of the optical material which is in contact with the non-linear optical thin film is determined to be 15×10−6/° C. or below. Preferably, it is determined to be zero or substantially zero. Thus, an influence due to the temperature increase is cancelled, and a malfunction of switching can be avoided.

Abstract translation: 一种光开关，用于通过使信号光从设置在光学材料中的光路倾斜地进入含有金属氧化物的纳米晶体的非线性光学薄膜1来切换信号光，并将可见激发光照射到非线性 导致全反射现象，从而控制信号光的反射和透射行为，其中非线性光学薄膜的光学折射率的温度系数因子与光学折射率的差异 与非线性光学薄膜接触的光学材料被确定为15×10 -6 /℃或更低。 优选地，确定为零或基本为零。 因此，由于温度升高引起的影响被消除，并且可以避免切换故障。

公开(公告)号：US20100226658A1

公开(公告)日：2010-09-09

申请号：US12704566

申请日：2010-02-12

Applicant: Takahiro Fujimoto ,  Kensuke Matsui

Inventor： Takahiro Fujimoto ,  Kensuke Matsui

IPC: H04B10/12 ,  H04B10/06

CPC classification number: H04B10/677

Abstract: An optical receiving apparatus, including an optical interferometer including first and second optical waveguides having light paths different in length and converting a phase modulated signal received by the optical receiving apparatus into an intensity modulated signal, monitors the results of the detecting by the temperature detector and the measuring by the electric current measure while sweeping the temperature of the first optical waveguide in a predetermined range; selects the temperature of the first optical waveguide at which temperature the average photocurrent has an extreme value based on the result of the monitoring; and varies the temperature of the first optical waveguide to the selected temperature.

Abstract translation: 一种光接收装置，包括光干涉仪，其包括具有长度不同的光路的第一和第二光波导，并将由光接收装置接收的相位调制信号转换为强度调制信号，监视由温度检测器检测的结果， 在将第一光波导的温度扫描到预定范围内时通过电流测量进行测量; 基于监视结果，选择平均光电流具有极值的温度的第一光波导的温度; 并且将第一光波导的温度改变到所选择的温度。

公开(公告)号：US20090297160A1

公开(公告)日：2009-12-03

申请号：US12318526

申请日：2008-12-30

Applicant: Kensuke Matsui ,  Takahiro Fujimoto

Inventor： Kensuke Matsui ,  Takahiro Fujimoto

IPC: H04B10/00

CPC classification number: H04B10/40

Abstract: An optical transceiver stores an output A/D value which is A/D-converted from reference voltage in an EEPROM as correction data in preparing the optical transceiver. The optical transceiver, receiving a request for outputting a monitored value from an external device connected therewith, calculates a variation based on difference between the output A/D value which is A/D-converted from the reference voltage at the timing when the request for outputting the monitored value is received and the correction data stored in the EEPROM. Then, the optical transceiver uses the calculated variation to convert current of light-input power which is input thereinto into voltage, amplify the voltage, and A/D-convert the voltage to thereby correct the output A/D value. The optical transceiver outputs the corrected A/D value to the connected external device as the monitored value.

Abstract translation: 光收发器将在EEPROM中的参考电压进行A / D转换的输出A / D值存储在准备光收发器中作为校正数据。 从收发与外部连接的外部装置输出监视值的请求的光收发信机，根据在请求的时刻的基准电压的A / D转换后的输出A / D值之差， 输出监视值并将修正数据存储在EEPROM中。 然后，光收发器使用计算的变化将输入的光输入功率的电流转换为电压，放大电压，并对电压进行A / D转换，从而校正输出A / D值。 光收发器将校正的A / D值作为监视值输出到连接的外部设备。

公开(公告)号：US20050201443A1

公开(公告)日：2005-09-15

申请号：US11054554

申请日：2005-02-10

Applicant: Akihiko Hayashi ,  Kensuke Matsui ,  Hirokazu Osada

Inventor： Akihiko Hayashi ,  Kensuke Matsui ,  Hirokazu Osada

IPC: G02F1/035 ,  H01S3/00 ,  H04B10/50 ,  H04B10/564

CPC classification number: G02F1/0356 ,  H04B10/503 ,  H04B10/564

Abstract: A light source device has a CW light source for emitting first DC light, a level converter for converting optical electric power of the first DC light into second DC light and outputting the second DC light, and a mixer for mixing an optical main signal having a constant extinction ratio with the second DC light.

Abstract translation: 光源装置具有用于发射第一DC光的CW光源，用于将第一DC光的光功率转换为第二DC光并输出第二DC光的电平转换器，以及混合器，用于混合具有 恒定消光比与第二个直流光。

公开(公告)号：US07421211B2

公开(公告)日：2008-09-02

申请号：US11054554

申请日：2005-02-10

Applicant: Akihiko Hayashi ,  Kensuke Matsui ,  Hirokazu Osada

Inventor： Akihiko Hayashi ,  Kensuke Matsui ,  Hirokazu Osada

IPC: H04B10/02

CPC classification number: G02F1/0356 ,  H04B10/503 ,  H04B10/564

Abstract: A light source device has a continous wave (CW) light source for emitting first direct current (DC) light, a level converter for converting optical electric power of the first DC light into second DC light and outputting the second DC light, and a mixer for mixing an optical main signal having a constant extinction ratio with the second DC light.

Abstract translation: 光源装置具有用于发射第一直流（DC）光的连续波（CW）光源，用于将第一DC光的光功率转换为第二DC光并输出第二DC光的电平转换器，以及混频器 用于将具有恒定消光比的光学主信号与第二DC光混合。

公开(公告)号：US20060222834A1

公开(公告)日：2006-10-05

申请号：US11355016

申请日：2006-02-16

Applicant: Hideto Momose ,  Yuichi Sawai ,  Takashi Naito ,  Kensuke Matsui

Inventor： Hideto Momose ,  Yuichi Sawai ,  Takashi Naito ,  Kensuke Matsui

IPC: B32B7/02

CPC classification number: G02F1/3515 ,  B82Y20/00 ,  G02F1/0126 ,  G02F1/0147 ,  G02F2202/36 ,  Y10T428/24942

Abstract: An optical switch for switching signal light by allowing the signal light to obliquely enter a non-linear optical thin film 1 containing nano-crystal of metal oxide from a light path disposed in an optical material, and irradiating visible excitation light to the non-linear optical thin film to induce a total reflection phenomenon, thereby controlling the reflection and transmission behavior of the signal light, wherein a difference between a temperature coefficient factor of an optical index of the non-linear optical thin film and that of an optical index of the optical material which is in contact with the non-linear optical thin film is determined to be 15×10−6/° C. or below. Preferably, it is determined to be zero or substantially zero. Thus, an influence due to the temperature increase is cancelled, and a malfunction of switching can be avoided.

Abstract translation: 一种光开关，用于通过使信号光从设置在光学材料中的光路倾斜地进入含有金属氧化物的纳米晶体的非线性光学薄膜1来切换信号光，并将可见激发光照射到非线性 导致全反射现象，从而控制信号光的反射和透射行为，其中非线性光学薄膜的光学折射率的温度系数因子与光学折射率的差异 与非线性光学薄膜接触的光学材料被确定为15×10 -6 /℃或更低。 优选地，确定为零或基本为零。 因此，由于温度升高引起的影响被消除，并且可以避免切换故障。