专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2013231937A Optical device and manufacturing method thereof 审中-公开
标题翻译：光学装置及其制造方法
公开(公告)号：JP2013231937A
公开(公告)日：2013-11-14
申请号：JP2012224968
申请日：2012-10-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YASUI NOBUYUKI , NAKAHARA TAKEHIKO , SHIMONO MASAYA , FUKUDA KEIICHI , MOCHIZUKI KEITA , ARIGA HIROSHI , UTO KENICHI , MURAO SATOSHI , KODERA HIDEKAZU
IPC分类号： G02B7/02 , G02B6/32 , G02B7/00
CPC分类号： G02B7/003 , G02B6/3656 , G02B6/4225 , G02B6/4226 , G02B6/4237 , G02B7/023
摘要： PROBLEM TO BE SOLVED: To provide an optical device capable of accurately and quickly achieving optical alignment with respect to two directions vertical to an optical axis direction, and a manufacturing method thereof.SOLUTION: The manufacturing method of the optical device including a lens 3 having an optical axis in a Z direction, a lens holder 5 holding the lens 3, and a holder carrier 6 having the lens holder 5 fixed thereto includes the steps of preparing the lens holder 5 which has a horizontal member 51 extending in an X direction and two vertical members 52a and 52b extending in a Y direction, fixing the lens 3 to the horizontal member 51, fixing the vertical members 52a and 52b to the holder carrier 6, plastically deforming the horizontal member 51 by irradiation with laser light to adjust the position of the lens 3 in the X direction, and plastically deforming the vertical members 52a and 52b by irradiation with laser light to adjust the position of the lens 3 in the Y direction.
摘要翻译：要解决的问题：提供一种能够准确且快速地实现与光轴方向垂直的两个方向的光学对准的光学装置及其制造方法。光学装置的制造方法包括具有在Z方向的光轴，保持透镜3的透镜保持件5和固定有透镜保持器5的保持架6包括准备透镜保持件5的步骤，该透镜保持器5具有在X方向上延伸的水平构件51，两个垂直构件52a和52b沿Y方向延伸，将透镜3固定在水平构件51上，将垂直构件52a和52b固定到保持器支架6上，通过用激光照射来使水平构件51发生塑性变形，在透镜3的X方向上，通过用激光照射使垂直构件52a，52b发生塑性变形，从而将透镜3的位置调整为Y直线离子。

2. 发明专利

JP2011232553A Optical transmitter, optical communication system and modulation method 审中-公开
标题翻译：光学发射机，光通信系统和调制方法
公开(公告)号：JP2011232553A
公开(公告)日：2011-11-17
申请号：JP2010102967
申请日：2010-04-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： UTO KENICHI , YOSHIDA TAKESHI , SUGIHARA TAKASHI
IPC分类号： G02F1/03 , H04B10/07 , H04B10/516 , H04B10/524 , H04B10/556 , H04B10/588 , H04B10/61 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To attain an optical transmitter capable of realizing a linear electro-optical conversion and of reducing a difference between an Ich signal level and a Qch signal level.SOLUTION: The optical transmitter comprises a light source 1, an I/Q modulator 2 for generating a light signal for an I channel and a light signal for a Q channel by converting a light output from the light source 1, a driver 3 for the Ich for providing an I channel driving signal to the I/Q modulator 2, a driver 4 for the Qch for providing a Q channel driving signal to the I/Q modulator 2, a monitor PD6 for detecting a light intensity of the light signal output from the I/Q modulator 2, and a control circuit 5 for adjusting an amplitude of the I channel driving signal and an amplitude of the Q channel driving signal respectively, on the basis of the light intensity.
摘要翻译：解决的问题：为了实现能够实现线性电光转换和减小Ich信号电平和Qch信号电平之间的差异的光发射机。解决方案：光发射机包括光源1，I / Q调制器2，用于通过转换来自光源1的光输出，产生用于I通道的光信号和用于Q通道的光信号，驱动器 3，用于向I / Q调制器2提供I通道驱动信号的Ich，用于向I / Q调制器2提供Q通道驱动信号的用于Qch的驱动器4，用于检测I / Q调制器2的光强度的监视器PD6 根据光强度，分别从I / Q调制器2输出的光信号和用于分别调整I通道驱动信号的幅度和Q通道驱动信号的振幅的控制电路5。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2005085815A Wavelength stabilizing unit 审中-公开
标题翻译：波长稳定单元
公开(公告)号：JP2005085815A
公开(公告)日：2005-03-31
申请号：JP2003312997
申请日：2003-09-04
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KANETANI MASAO , KITAGAWA FUSAYASU , UTO KENICHI
IPC分类号： H01S5/0687
摘要： PROBLEM TO BE SOLVED: To obtain a wavelength stabilizing unit for performing the wavelength control of a laser beam stably at high speed.
SOLUTION: A wavelength stabilizing unit is equipped with an LD 101 which is capable of changing a laser beam in wavelength with a temperature change; a Peltier element 102 and a Peltier drive circuit 110 which control the temperature of the LD 101; a thermistor 109 which detects the temperature of the LD 101; a PD1 (104) which detects the volume of light emitted from the LD 101 as a first PD current; a PD2 (105) which detects light penetrating through an etalon filter 103 as a second PD current so as to detect a wavelength; and a memory in which a table is previously stored wherein the temperature of the LD 101, the wavelength of a laser beam emitted from the LD 101, the first PD current, and the second PD current are measured while the LD 101 is changed in temperature, and are tabled with the measurement data as a target value. A CPU 107 computes a present wavelength from outputs of the PD2 and the PD1, and the present wavelength is compared with the data stored in the memory to detect a present position for control.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：获得用于稳定地高速执行激光束的波长控制的波长稳定单元。解决方案：波长稳定单元配备有能够随温度变化改变波长的激光束的LD 101; 控制LD 101的温度的珀耳帖元件102和珀尔帖驱动电路110; 检测LD 101的温度的热敏电阻109; PD1（104），其检测从LD 101发射的光的体积作为第一PD电流; PD2（105），其检测穿过标准具滤光器103的光作为第二PD电流，以便检测波长; 以及存储器，其中预先存储表格，其中LD 101的温度，从LD 101发射的激光束的波长，第一PD电流和第二PD电流被测量，同时LD 101的温度变化，并将测量数据作为目标值。 CPU 107从PD2和PD1的输出计算当前波长，并将本波长与存储在存储器中的数据进行比较，以检测当前位置进行控制。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2014022871A Optical transmitter 有权
标题翻译：光学发射器
公开(公告)号：JP2014022871A
公开(公告)日：2014-02-03
申请号：JP2012158551
申请日：2012-07-17
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ITO AKITOSHI , UTO KENICHI , HOSHINA TOMOKI
IPC分类号： H04B10/50 , G02F1/01
摘要： PROBLEM TO BE SOLVED: To obtain an optical transmitter which converges extinction curves of a bias control voltage during optimization of modulation signal gain control into a peak point in a short time with high accuracy.SOLUTION: In a control unit 16, a bias control voltage to be applied to a DQPSK modulator 14 is roughly adjusted so that the optical intensity of a DQPSK optical signal monitored by an optical detection unit 15 becomes maximum, and further the bias control voltage to be applied to the DQPSK modulator 14 is fine-adjusted by keeping only modulation signal output from an Ich driver 12 or a Qch driver 13 whichever is to be adjusted alive, so that the peak value of a high frequency signal superposed on the DQPSK optical signal monitored by the optical detection unit 15 becomes minimum, while a gain control signal for the driver to be adjusted is adjusted. Thus, by making adjustment separately for rough adjustment and fine adjustment, the extinction curves of the bias control voltage during the optimization of modulation signal gain control can be converged into a peak point in a short time with high accuracy.
摘要翻译：要解决的问题：获得一种光发射机，其将调制信号增益控制优化期间的偏置控制电压的消光曲线在高精度的短时间内收敛成峰值点。解决方案：在控制单元16中，偏置控制电压被粗略地调整为DQPSK调制器14的光强度使得由光学检测单元15监视的DQPSK光信号的光强度变得最大，并且进一步将施加到DQPSK调制器14的偏置控制电压通过只保留从Ich驱动器12或Qch驱动器13输出的调制信号，取决于要调整的调制信号，使得叠加在由光学检测单元15监视的DQPSK光信号上的高频信号的峰值变为最小，而调整驱动器的增益控制信号。因此，通过对粗调和微调进行单独调整，调制信号增益控制优化期间偏置控制电压的消光曲线可以在短时间内以高精度收敛到峰值点。

5. 发明专利

JP2013167703A Optical modulator, optical transmission device, and correcting method of optical modulator 审中-公开
标题翻译：光学调制器，光传输设备和光学调制器的校正方法
公开(公告)号：JP2013167703A
公开(公告)日：2013-08-29
申请号：JP2012029922
申请日：2012-02-14
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： BESSHO HIROSHI , SUGIHARA TAKASHI , UTO KENICHI , YOSHIDA TAKESHI , SAITO TAKESHI
IPC分类号： G02F1/025
摘要： PROBLEM TO BE SOLVED: To provide an optical modulator capable of improving the quality of an optical signal.SOLUTION: An optical modulator 102 converts an electric signal to an optical signal. A main Mach-Zehnder interferometer 112 includes a first arm 143 and a second arm 144, which branch off from a main input optical path 141 at one end and unit at the other end to be connected to a main output optical path 146. A first electrode 121 and a second electrode 122 respectively change the phases of light transmitted through the corresponding first arm 143 or the second arm 144, according to voltages applied thereto, thereby attenuating the power of the light. A control portion 115 controls the voltage applied to one of the first electrode 121 and the second electrode 122 on the basis of the power of the light measured by a measuring portion 114, so as to make the power of the light transmitted through each of the first arm 143 and the second arm 144 equal to each other. The control portion 115 controls the voltage applied to the other of the first electrode 121 and the second electrode 122 according to the electric signal.
摘要翻译：要解决的问题：提供能够提高光信号质量的光调制器。解决方案：光调制器102将电信号转换为光信号。主马赫 - 策德尔干涉仪112包括第一臂143和第二臂144，其从一端的主输入光路141和另一端的单元分支以连接到主输出光路146.第一电极121和第二电极122根据施加到其上的电压分别改变透过相应的第一臂143或第二臂144的光的相位，从而衰减光的功率。控制部分115基于由测量部分114测量的光的功率来控制施加到第一电极121和第二电极122中的一个的电压，以便透过每个第一臂143和第二臂144彼此相等。控制部分115根据电信号控制施加到第一电极121和第二电极122中的另一个的电压。

6. 发明专利

JP2004297592A Optical receiver 审中-公开
标题翻译：光接收机
公开(公告)号：JP2004297592A
公开(公告)日：2004-10-21
申请号：JP2003088927
申请日：2003-03-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： UTO KENICHI
IPC分类号： H01L31/10 , H04B10/07 , H04B10/079 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/67 , H04B10/69 , H04J14/00 , H04J14/02 , H04B10/08 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/26 , H04B10/28
摘要： PROBLEM TO BE SOLVED: To monitor an optical signal wavelength without depending on the power of a light receiving signal in a WDM optical communication system.
SOLUTION: An optical receiver 17 to be applied to the WDM optical communication system performs multiplex communication by using the optical wavelength multiplex signal constituted by multiplexing optical signals having a plurality of different wavelength. The receiver 17 is provided with: a first light receiving part 21 which receives the optical wavelength multiplex signal and generates a photocurrent depending on each wavelength of the optical wavelength multiplex signal; and a wavelength monitoring circuit 22 which monitors each wavelength of the optical wavelength multiplex signal. The wavelength monitoring circuit 22 calculates the wavelength of the optical wavelength multiplex signal on the basis of the variation of photosensitivity obtained by monitoring of the photocurrent.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：在WDM光通信系统中，不依赖于光接收信号的功率来监视光信号波长。解决方案：应用于WDM光通信系统的光接收机17通过使用复用具有多个不同波长的光信号构成的光波长多路复用信号进行多路复用通信。接收器17设置有：第一光接收部21，其接收光波长复用信号，并根据光波长复用信号的每个波长产生光电流; 以及监视光波长复用信号的各波长的波长监视电路22。波长监视电路22基于通过监视光电流获得的光敏度的变化来计算光波长多路复用信号的波长。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2014228616A 光送信機、光通信システムおよび光送信機の起動方法审中-公开
标题翻译：光学发射器，光通信系统和光传输器启动方法
公开(公告)号：JP2014228616A
公开(公告)日：2014-12-08
申请号：JP2013106915
申请日：2013-05-21
申请人：三菱電機株式会社 , Mitsubishi Electric Corp
发明人： UTO KENICHI
IPC分类号： G02F1/015
摘要：【課題】電界吸収型光変調器を用いる光送信機において、安定した起動動作を実現することを目的としている。【解決手段】光送信機において、駆動電流に応じて発光した光を出力する光源と、駆動電圧に応じて前記光源からの光を吸収し、吸収した光に対応したフォトカレントを出力する一方で、吸収しなかった光を光変調信号として送信する電界吸収型光変調器と、前記電界吸収型光変調器に前記駆動電圧を印加する駆動電圧印加回路と、前記光源の温度および前記電界吸収型光変調器の温度を制御する温度制御回路と、前記フォトカレントのモニタ結果に基づいて前記駆動電流を制御する駆動電流制御回路と、前記駆動電圧印加回路、前記温度制御回路および前記駆動電流制御回路の起動動作の順序を制御する起動シーケンス制御回路と、を備えたものである。【選択図】図1
摘要翻译：要解决的问题：在使用电吸收光调制器的光发射机中实现稳定的启动操作。解决方案：一种光发射机，包括：输出根据驱动电流发射的光的光源; 电吸收光调制器，其根据驱动电压吸收来自光源的光，输出与吸收的光对应的光电流，并透射未被吸收的光作为光调制信号; 将驱动电压施加到电吸收光调制器的驱动电压施加电路; 温度控制电路，其控制光源的温度和电吸收光调制器的温度; 驱动电流控制电路，其基于所述光电流的监视结果来控制所述驱动电流; 以及开始顺序控制电路，其控制驱动电压施加电路，温度控制电路和驱动电流控制电路的启动操作的顺序。

8. 发明专利

JP2012217127A Optical transmitter, optical communication system and optical communication method 有权
标题翻译：光学发射机，光通信系统和光通信方法
公开(公告)号：JP2012217127A
公开(公告)日：2012-11-08
申请号：JP2011212403
申请日：2011-09-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： UTO KENICHI , SAWADA KAZUSHIGE , SUGIHARA TAKASHI , YOSHIDA TAKESHI
IPC分类号： H04B10/152 , G02F1/01 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/142 , H04B10/26 , H04B10/28
摘要： PROBLEM TO BE SOLVED: To accelerate the time of pulling to an optimum conversion point of bias voltage, in bias control of an optical modulator.SOLUTION: The optical transmitter comprises: a modulation signal drive unit which outputs a modulation signal that is driven based on a data series signal input; an optical modulation unit which modulates the light based on a bias voltage applied and the modulation signal input from the modulation signal drive unit, and outputs a modulated optical signal; and a control unit which controls the bias voltage in an initial state where the modulation signal is not input from the modulation signal drive unit to the optical modulation unit, and then controls the bias voltage in normal state where the modulation signal is input from the modulation signal drive unit to the optical modulation unit.
摘要翻译：要解决的问题：在光调制器的偏置控制中，加速拉入偏置电压的最佳转换点的时间。解决方案：光发射机包括：调制信号驱动单元，其输出基于数据串信号输入驱动的调制信号; 光调制单元，其基于施加的偏置电压和从调制信号驱动单元输入的调制信号来调制光，并输出调制的光信号; 以及控制单元，其在调制信号未从调制信号驱动单元输入到光调制单元的初始状态下控制偏置电压，然后在从调制信号输入调制信号的正常状态下控制偏置电压信号驱动单元连接到光调制单元。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2008160734A Optical receiver 有权
标题翻译：光接收机
公开(公告)号：JP2008160734A
公开(公告)日：2008-07-10
申请号：JP2006350129
申请日：2006-12-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： UTO KENICHI
IPC分类号： H04B10/07 , H04B10/079 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/69
CPC分类号： H04B10/695
摘要： PROBLEM TO BE SOLVED: To obtain an optical receiver capable of detecting the signal interruption of an optical signal while following receiving sensitivity.
SOLUTION: This optical receiver includes: a photoelectric conversion circuit for converting an inputted optical signal into an electric signal; an electric amplifier for amplifying the electric signal outputted from the photoelectric converting circuit; a threshold regulation circuit for outputting a threshold corresponding to the signal information of the optical signal; and an optical signal interruption detection circuit for outputting a result obtained by comparing an electric amplitude of the electric signal outputted from the electric amplifier with the threshold outputted from the threshold regulation circuit.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：获得能够在接收灵敏度的同时检测光信号的信号中断的光接收机。解决方案：该光接收器包括：光电转换电路，用于将输入的光信号转换成电信号; 用于放大从光电转换电路输出的电信号的电放大器; 阈值调节电路，用于输出与光信号的信号信息相对应的阈值; 以及光信号中断检测电路，用于输出通过将从电放大器输出的电信号的电幅值与从阈值调节电路输出的阈值进行比较而获得的结果。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2013174761A Optical transmitter, optical communication system and optical transmission method 审中-公开
标题翻译：光学发射器，光通信系统和光传输方法
公开(公告)号：JP2013174761A
公开(公告)日：2013-09-05
申请号：JP2012039724
申请日：2012-02-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SHINTAKU HIROAKI , UTO KENICHI , SUGIHARA TAKASHI
IPC分类号： G02F1/035
摘要： PROBLEM TO BE SOLVED: To achieve a highly accurate bias control of an optical modulator by correcting a deviation from an optimum bias in optical transmitters using optical modulators, and thereby suppress degradation of an optical signal quality even when treating a modulation optical signal required for the highly accurate bias control such as, for example, a pre-equalized optical signal, a multi-value modulation optical signal or the like.SOLUTION: The optical transmitter comprises: an optical modulation part that modulates light based on an applied bias voltage and input modulation signal and outputs the modulated optical signal; a bias control circuit that controls the bias voltage to be applied to the optical modulation part; and an operation point off-set addition part that adds an off-set to an operation point of the bias voltage by the bias control circuit.
摘要翻译：要解决的问题：为了通过使用光调制器校正光发射机中的最佳偏差的偏差来实现光调制器的高精度偏置控制，从而即使在处理光信号质量所需的调制光信号时也抑制光信号质量的劣化高精度偏置控制，例如预均衡光信号，多值调制光信号等。解决方案：光发射机包括：光调制部分，其基于施加的偏置电压和输入来调制光调制信号并输出调制光信号; 偏置控制电路，其控制施加到所述光调制部分的偏置电压; 以及通过偏置控制电路将偏置电压的操作点加上偏移的操作点偏移加法部。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式