公开(公告)号：US20070264022A1

公开(公告)日：2007-11-15

申请号：US11826975

申请日：2007-07-19

Applicant: Katsuhiko Hakomori ,  Masakazu Horishita

Inventor： Katsuhiko Hakomori ,  Masakazu Horishita

IPC: H04B10/00

CPC classification number: H01L27/144 ,  H01L31/02002 ,  H04B10/40

Abstract: In an optical module in which a transmitter and a receiver that respectively outputs and receives optical signals are stored in a casing, the transmitter and the receiver are connected to a common power line and to a common ground line, and a ferrite bead is arranged on the ground line in the receiver. The ferrite bead absorbs a high-frequency current component out of components in an electric signal passing through the ground line on which the ferrite bead is arranged. An inductance component that evolves on a ground line and a power line of a light receiving element and oscillation of a series resonance circuit that is formed of a capacitance component of the light receiving element are suppressed to reduce crosstalk.

Abstract translation: 在分别输出和接收光信号的发射器和接收器存储在壳体中的光学模块中，发射器和接收器连接到公共电源线和公共接地线，铁氧体磁珠布置在 接收器中的接地线。 铁氧体磁珠通过穿过铁氧体磁珠的接地线的电信号中的部件中的高频电流分量吸收。 抑制在接地线和光接收元件的电力线上演化的电感分量和由光接收元件的电容分量形成的串联谐振电路的振荡，以减少串扰。

公开(公告)号：US07903984B2

公开(公告)日：2011-03-08

申请号：US12031841

申请日：2008-02-15

Applicant: Katsuhiko Hakomori ,  Masakazu Horishita

Inventor： Katsuhiko Hakomori ,  Masakazu Horishita

IPC: H04B10/00

CPC classification number: H04B10/69 ,  H01L31/08

Abstract: An optical receiver comprising: a photoelectric converting unit converting an input optical signal into an converted electrical signal; a splitting unit splitting the converted electrical signal into a plurality of split electrical signals; an amplifier amplifying one of the plurality of the split electrical signals with a first input time constant and thereby outputting an output signal; a detection circuit detecting an interruption of the input optical signal with a second input time constant on the basis of one of the plurality of the split electrical signals other than the one of the plurality of the split electrical signals input to the amplifier and thereby outputting a detection signal; and a delay circuit configured to delay the detection signal; wherein, the second input time constant of the detection circuit is smaller than the first input time constant of the amplifier.

Abstract translation: 一种光接收机，包括：光电转换单元，将输入光信号转换成转换的电信号; 分离单元，将转换的电信号分解为多个分离的电信号; 放大器，以第一输入时间常数放大多个分割电信号中的一个，从而输出输出信号; 基于除了输入到放大器的多个分割电信号中的一个以外的多个分离电信号中的一个分离电信号中的第二输入时间常数来检测输入光信号的中断的检测电路，从而输出 检测信号; 以及延迟电路，被配置为延迟所述检测信号; 其中，检测电路的第二输入时间常数小于放大器的第一输入时间常数。

公开(公告)号：US07720393B2

公开(公告)日：2010-05-18

申请号：US11826975

申请日：2007-07-19

Applicant: Katsuhiko Hakomori ,  Masakazu Horishita

Inventor： Katsuhiko Hakomori ,  Masakazu Horishita

IPC: H04B10/06

CPC classification number: H01L27/144 ,  H01L31/02002 ,  H04B10/40

Abstract: In an optical module in which a transmitter and a receiver that respectively outputs and receives optical signals are stored in a casing, the transmitter and the receiver are connected to a common power line and to a common ground line, and a ferrite bead is arranged on the ground line in the receiver. The ferrite bead absorbs a high-frequency current component out of components in an electric signal passing through the ground line on which the ferrite bead is arranged. An inductance component that evolves on a ground line and a power line of a light receiving element and oscillation of a series resonance circuit that is formed of a capacitance component of the light receiving element are suppressed to reduce crosstalk.

Abstract translation: 在分别输出和接收光信号的发射器和接收器存储在壳体中的光学模块中，发射器和接收器连接到公共电源线和公共接地线，铁氧体磁珠布置在 接收器中的接地线。 铁氧体磁珠通过穿过铁氧体磁珠的接地线的电信号中的部件中的高频电流分量吸收。 抑制在接地线和光接收元件的电力线上演化的电感分量和由光接收元件的电容分量形成的串联谐振电路的振荡，以减少串扰。

公开(公告)号：US20090296761A1

公开(公告)日：2009-12-03

申请号：US12320524

申请日：2009-01-28

Applicant: Katsuhiko Hakomori

Inventor： Katsuhiko Hakomori

IPC: H01S3/04

CPC classification number: G02B6/4246 ,  H01S5/02469 ,  H01S5/042

Abstract: An optical device includes optical parts including a laser diode element accommodated in a housing. A bimorph-type piezoelectric element is arranged in a vicinity of the laser diode element and has a free end contacting one of the laser diode element, a support member supporting the laser diode element, and the housing. A control circuit controls an operation of the bimorph-type piezoelectric element.

Abstract translation: 光学装置包括光学部件，其包括容纳在壳体中的激光二极管元件。 双压电晶片型压电元件布置在激光二极管元件附近，并且具有接触激光二极管元件，支撑激光二极管元件的支撑构件和壳体之一的自由端。 控制电路控制双压电晶片型压电元件的工作。

公开(公告)号：US20060285563A1

公开(公告)日：2006-12-21

申请号：US11280341

申请日：2005-11-17

Applicant: Katsuhiko Hakomori

Inventor： Katsuhiko Hakomori

IPC: H01S3/04 ,  H01S3/00

CPC classification number: H01S5/0683 ,  H01S5/06804

Abstract: The present invention is an optical apparatus which enables highly accurate detection of the LD ambient temperature by means of a simple constitution. The apparatus of the present invention therefore comprises a laser diode for emitting output light; a photodiode disposed in proximity to the laser diode; a forward bias supplier for supplying forward bias voltage to the photodiode when the laser diode is not emitting the output signal light; and an ambient temperature detection unit for detecting ambient temperature of the laser diode based on a terminal voltage of the photodiode to which the forward bias voltage is supplied by the forward bias supplier.

Abstract translation: 本发明是能够通过简单的结构高精度地检测LD环境温度的光学装置。 因此，本发明的装置包括用于发射输出光的激光二极管; 设置在激光二极管附近的光电二极管; 当激光二极管不发射输出信号光时，正向偏压供应器向光电二极管提供正向偏置电压; 以及环境温度检测单元，用于基于正向偏压供应器提供正向偏置电压的光电二极管的端子电压来检测激光二极管的环境温度。

公开(公告)号：US20050213969A1

公开(公告)日：2005-09-29

申请号：US10965767

申请日：2004-10-18

Applicant: Katsuhiko Hakomori

Inventor： Katsuhiko Hakomori

IPC: H04B17/00 ,  H04B10/07 ,  H04B10/29 ,  H04B10/293 ,  H04B10/524 ,  H04B10/564 ,  H04B10/572 ,  H04B10/08

CPC classification number: H04B10/07953 ,  H04B10/07955 ,  H04B10/0799

Abstract: In a light transmission apparatus which controls an optical excitation intensity of an amplifying optical fiber or an attenuation of an optical variable attenuator based on an output light intensity, the output light intensity is sampled. When a change rate of an input light intensity exceeds a threshold value, the optical excitation intensity or the attenuation is controlled based on the output light intensity immediately before the change rate exceeds the threshold value. Accordingly, an occurrence of an optical surge is prevented and it is made possible to output an optical signal free from a signal error or a signal disconnected state.

Abstract translation: 在根据输出光强度控制放大光纤的光激发强度或光可变衰减器的衰减的光传输装置中，对输出光强度进行采样。 当输入光强度的变化率超过阈值时，基于在变化率超过阈值之前的输出光强度来控制光学激发强度或衰减。 因此，防止了光学浪涌的发生，并且可以输出没有信号错误或信号断开状态的光信号。

公开(公告)号：US20080159755A1

公开(公告)日：2008-07-03

申请号：US11984810

申请日：2007-11-21

Applicant: Katsuhiko Hakomori

Inventor： Katsuhiko Hakomori

IPC: H04B10/06

CPC classification number: H04B10/6911

Abstract: An optical signal receiving apparatus, able to detect a bit rate of a received signal by a low cost and able to change to a suitable reception band width corresponding to the received bit rate, provided with a bit rate detection circuit detecting a bit rate from a consumed current flowing through a CMOS inverter (CMOS-INV) connected to an output of a PIN photodiode converting an input optical signal to an electrical signal and a control circuit controlling a reverse bias voltage applied to a variable capacity diode provided at any location in the PIN photodiode or reception apparatus.

Abstract translation: 一种光信号接收装置，其能够以低成本检测接收信号的比特率并能够改变到与接收的比特率相对应的适当的接收频带宽度，该比特率检测电路检测来自 消耗的电流流过连接到PIN光电二极管的输出的CMOS反相器（CMOS-INV），其将输入光信号转换为电信号，以及控制电路，控制施加到可变电容二极管的反向偏置电压，该可变电容二极管设置在 PIN光电二极管或接收装置。

公开(公告)号：US08427842B2

公开(公告)日：2013-04-23

申请号：US13137831

申请日：2011-09-15

Applicant: Katsuhiko Hakomori

Inventor： Katsuhiko Hakomori

IPC: H05K7/14 ,  H05K9/00

CPC classification number: H05K9/0058 ,  G02B6/4246 ,  G02B6/4277

Abstract: An electromagnetic wave suppression material is fixed to a case of a communication module. The electromagnetic wave suppression material suppresses radiation of electromagnetic waves by coming into contact with a cage that is a module insertion portion of a chassis when the communication module is inserted into the cage. A piezoelectric element is provided on the case, and located between the case and the electromagnetic wave suppression material. When the communication module is inserted into the cage, the controller applies a voltage to the piezoelectric element to stretch it by the applied voltage, thereby increasing contact pressure between the cage and the electromagnetic wave suppression material.

Abstract translation: 电磁波抑制材料固定在通信模块的情况下。 电磁波抑制材料通过在将通信模块插入保持架时与作为机箱的模块插入部的保持架抵接而抑制电磁波的辐射。 在壳体上设有压电元件，位于外壳和电磁波抑制材料之间。 当通信模块插入到保持架中时，控制器向压电元件施加电压以通过施加的电压拉伸，从而增加保持架和电磁波抑制材料之间的接触压力。

公开(公告)号：US06912085B2

公开(公告)日：2005-06-28

申请号：US10325963

申请日：2002-12-23

Applicant: Katsuhiko Hakomori ,  Hiroyuki Furukawa ,  Kazuhito Ogawa

Inventor： Katsuhiko Hakomori ,  Hiroyuki Furukawa ,  Kazuhito Ogawa

IPC: H01S3/00 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/13 ,  H01S3/131

CPC classification number: H01S3/1301 ,  H01S3/06754

Abstract: An optical amplifier amplifies a light signal inputted to an optical amplifier fiber and outputs an amplified light signal, by exciting the fiber with an excitation light. The optical amplifier can keep its output light level constant and stable and reduce the excitation light when the light inputted to the fiber is cut off, just by detecting the optical output level at a post-stage of the fiber. The optical amplifier comprises a first control circuit, a second control circuit and a selector circuit. The first control circuit amplifies the difference between a first predetermined voltage and an o/e-converted voltage of the optical amplifier fiber output light to output an amplified voltage. The second control circuit amplifies the difference between the o/e-converted voltage of the excitation light and a selected one of the first control circuit output voltage and a second predetermined voltage to output an amplified voltage and controls the excitation light based on the second control circuit output voltage. The selector circuit detects a change in the first control circuit output voltage and depending on the change, selects the first control circuit output voltage or a second predetermined voltage.

Abstract translation: 光放大器放大输入到光放大器光纤的光信号，并通过用激发光激发光纤输出放大的光信号。 只要通过检测光纤后级的光输出电平，光放大器可以保持其输出光电平恒定且稳定，并减少输入光纤的光线时的激发光。 光放大器包括第一控制电路，第二控制电路和选择器电路。 第一控制电路放大第一预定电压和光放大器光纤输出光的o / e转换电压之间的差以输出放大电压。 第二控制电路放大激发光的o / e转换电压与所选择的第一控制电路输出电压和第二预定电压之间的差，以输出放大的电压，并且基于第二控制来控制激发光 电路输出电压。 选择器电路检测第一控制电路输出电压的变化，并且根据变化，选择第一控制电路输出电压或第二预定电压。

公开(公告)号：US08150258B2

公开(公告)日：2012-04-03

申请号：US12343480

申请日：2008-12-24

Applicant: Katsuhiko Hakomori

Inventor： Katsuhiko Hakomori

IPC: H04B10/08

CPC classification number: H04B10/071 ,  H04B10/0771

Abstract: An optical transmission device for controlling an optical signal output includes a return light detection section for detecting return light of the optical signal transmitted via the optical transmission line; a superimposed light transmission section for generating superimposed light having a superimposed basic low-frequency wave and transmitting the light when return light is detected by the return light detection section; a return light identification section for identifying the return light detected by the return light detection section as Fresnel light caused by a disconnection of the optical connector or Stokes light caused by stimulated Brillouin scattering based on an analysis result of the return superimposed light with respect to the superimposed light transmitted by the superimposed light transmission section.

Abstract translation: 用于控制光信号输出的光传输装置包括用于检测通过光传输线传输的光信号的返回光的返回光检测部分; 叠加光透射部分，用于产生具有叠加的基本低频波的叠加光，并且在由返回光检测部检测到返回光时透射光; 一个返回光识别部分，用于将由返回光检测部分检测的返回光识别为由受激布里渊散射引起的光连接器或斯托克斯光的断开引起的菲涅尔光，基于返回的叠加光的分析结果相对于 由叠加光透射部分透射的叠加光。