公开(公告)号：US20090116848A1

公开(公告)日：2009-05-07

申请号：US12293973

申请日：2007-02-21

申请人： Bong-Kyu Kim ,  Heuk Park ,  Kwangjoon Kim ,  Bong-Tae Kim

发明人： Bong-Kyu Kim ,  Heuk Park ,  Kwangjoon Kim ,  Bong-Tae Kim

IPC分类号： H04B10/00

CPC分类号： H04L25/4904 ,  H03M5/12 ,  H04B10/2587

摘要： An optical communication system and method using Manchester encoded signal remodulation are provided. The optical communication system includes a transmitter generating and transmitting a Manchester encoded optical signal including a first data stream, and a receiver receiving an optical signal obtained by dividing power of the Manchester encoded optical signal into two parts and modulating one of the two parts to include a second data stream, and recovering the second data stream. In two-way communication, the optical communication system and method allow one party to generate and transmit a Manchester encoded signal (i.e., a downstream signal) to the other party and allow the other party to generate an upstream signal by modulating the optical power of the downstream signal without using a light source.

摘要翻译： 提供了使用曼彻斯特编码信号再调制的光通信系统和方法。 光通信系统包括发射和发送包括第一数据流的曼彻斯特编码的光信号的发射机和接收通过将曼彻斯特编码的光信号的功率分成两部分而获得的光信号的接收机，并且调制这两部分中的一个以包括 第二数据流，并且恢复第二数据流。 在双向通信中，光通信系统和方法允许一方生成曼彻斯特编码信号（即，下行信号）并发送给另一方，并允许另一方通过调制光信号的光功率来产生上行信号 下游信号不使用光源。

公开(公告)号：US20090269051A1

公开(公告)日：2009-10-29

申请号：US12439679

申请日：2007-08-22

申请人： Bin-Yeong Yoon ,  Bong-Kyu Kim ,  Dong-Soo Lee ,  Mun-Seob Lee ,  Jong-Deog Kim ,  Bong-Tae Kim

发明人： Bin-Yeong Yoon ,  Bong-Kyu Kim ,  Dong-Soo Lee ,  Mun-Seob Lee ,  Jong-Deog Kim ,  Bong-Tae Kim

IPC分类号： H04J14/00 ,  H04B10/04 ,  H04B10/00

CPC分类号： H04B10/40

摘要： Provided are an optical output power control method that provides optical communication without harming the human body even when a transmission line is cut or no optical network unit (ONU) accesses a communication system, and a passive optical network (PON) system using the method. In the method, an optical signal having a predetermined period is transmitted when an optical communication system is in an abnormal state, wherein the predetermined period includes a laser-on time interval in which the optical signal has a normal power level and a laser-off time interval in which the optical signal is off or has a power level lower than the normal power level, so that the optical communication system performs optical communication without harming the human body even during the abnormal state.

摘要翻译： 提供一种光输出功率控制方法，即使在传输线被切断或者没有光网络单元（ONU）访问通信系统的情况下也提供光通信而不伤害人体，以及使用该方法的无源光网络（PON）系统。 在该方法中，当光通信系统处于异常状态时，发送具有预定周期的光信号，其中，预定周期包括光信号具有正常功率电平和激光关断的激光导通时间间隔 光信号关闭或功率电平低于正常功率电平的时间间隔，使得即使在异常状态下，光通信系统也不会对人体造成伤害，进行光通信。

公开(公告)号：US08103163B2

公开(公告)日：2012-01-24

申请号：US12439679

申请日：2007-08-22

申请人： Bin-Yeong Yoon ,  Bong-Kyu Kim ,  Dong-Soo Lee ,  Mun-Seob Lee ,  Jong-Deog Kim ,  Bong-Tae Kim

发明人： Bin-Yeong Yoon ,  Bong-Kyu Kim ,  Dong-Soo Lee ,  Mun-Seob Lee ,  Jong-Deog Kim ,  Bong-Tae Kim

IPC分类号： H04B10/08

CPC分类号： H04B10/40

摘要： Provided are an optical output power control method that provides optical communication without harming the human body even when a transmission line is cut or no optical network unit (ONU) accesses a communication system, and a passive optical network (PON) system using the method. In the method, an optical signal having a predetermined period is transmitted when an optical communication system is in an abnormal state, wherein the predetermined period includes a laser-on time interval in which the optical signal has a normal power level and a laser-off time interval in which the optical signal is off or has a power level lower than the normal power level, so that the optical communication system performs optical communication without harming the human body even during the abnormal state.

摘要翻译： 提供一种光输出功率控制方法，即使在传输线被切断或者没有光网络单元（ONU）访问通信系统的情况下也提供光通信而不伤害人体，以及使用该方法的无源光网络（PON）系统。 在该方法中，当光通信系统处于异常状态时，发送具有预定周期的光信号，其中，预定周期包括光信号具有正常功率电平和激光关断的激光开启时间间隔 光信号关闭或功率电平低于正常功率电平的时间间隔，使得即使在异常状态下，光通信系统也不会对人体造成伤害，进行光通信。

公开(公告)号：US20100003035A1

公开(公告)日：2010-01-07

申请号：US12375437

申请日：2007-07-23

申请人： Sung-Woong Park ,  Bong-Kyu Kim ,  Bin-Yeong Yoon

发明人： Sung-Woong Park ,  Bong-Kyu Kim ,  Bin-Yeong Yoon

IPC分类号： H04B10/04 ,  H01S5/00 ,  H01S3/0941

CPC分类号： H01S5/0601 ,  H01S5/0602

摘要： Provided are a laser diode which has low power consumption and can realize a high on/off extinction ratio by small variation of current and which can modulate optical signals at high speed, an optical transmitter, and an optical communication apparatus including the optical transmitter. The laser diode having an abrupt turn-on characteristic, comprises: an active region in which light is generated by application of current and gain is controlled; and an absorption region absorbing light generated in the laser diode at a current lower than an abrupt threshold current that is the same as or lower than an operation current, the operation current being a current level that allows the laser diode to generate a target optical power, wherein the output optical power rapidly increases at the abrupt threshold current.

摘要翻译： 提供了具有低功耗的激光二极管，并且可以通过小的电流变化实现高的开/关消光比，并且可以高速调制光信号，光发射机和包括光发射机的光通信设备。 激光二极管具有突然的导通特性，包括：通过施加电流而产生光的有源区域和增益被控制; 以及吸收区域，其以比操作电流相同或更低的突然阈值电流的电流吸收在激光二极管中产生的光，所述操作电流是允许激光二极管产生目标光功率的电流电平 其中输出光功率在突然的阈值电流下快速增加。

公开(公告)号：US06570698B2

公开(公告)日：2003-05-27

申请号：US09750072

申请日：2000-12-29

申请人： Bong-Kyu Kim ,  Kwang-Joon Kim ,  Jong-Hyun Lee ,  Seung-Il Myong

发明人： Bong-Kyu Kim ,  Kwang-Joon Kim ,  Jong-Hyun Lee ,  Seung-Il Myong

IPC分类号： G02F101

CPC分类号： G02F1/0123 ,  H04B10/5051 ,  H04B10/50575 ,  H04B10/58

摘要： An apparatus and a method for modulating the optical intensity, with the noises suppressed by using a linear optical modulator, are disclosed, so that the characteristics of signals transmitted from an optical communication system can be improved, and that the resolution of the measured physical quantities can be improved in an optical measuring instrument. The method is carried out in the following manner. That is, the magnitude of frequency is measured by utilizing pilot signals and electrical signals to transfer negatively fed-back signals to an optical intensity modulator. The phase is delayed by generating pilot signals so as to suppress an amplitude noise from the pilot signal caused by nonlinear modulation at the optical intensity modulator. A linear modulation is carried out on the phase-delayed signals and on optical signals from an external source to provide a linear component. The bias voltage is adjusted in accordance with the negatively fed-back signals, and an optical intensity modulation is carried out on the linearly modulated signals and on the added signals, the added signals having been formed by combining the data signals and the pilot signals.

公开(公告)号：US07366421B2

公开(公告)日：2008-04-29

申请号：US10940790

申请日：2004-09-13

申请人： Sung-Chan Cho ,  Bong-Kyu Kim ,  Young-Hee Yeon ,  Byoung-Whi Kim

发明人： Sung-Chan Cho ,  Bong-Kyu Kim ,  Young-Hee Yeon ,  Byoung-Whi Kim

IPC分类号： H04B10/08 ,  H04B10/12

CPC分类号： H04B10/2581 ,  G02B6/14 ,  G02B6/2932

摘要： A single-to-multi mode converter and an optical code division multiple access system using the same. The mode converter includes first, second, and third optical waveguides. The first optical waveguide is formed of a single-mode optical fiber and outputs a single-mode optical signal. The second optical waveguide converts the single-mode optical signal output from the first optical waveguide to a multi-mode optical signal and allows the optical power of the single-mode optical signal to be coupled to each mode of the multi-mode optical signal. The third optical waveguide is formed of a multi-mode optical fiber and transmits the multi-mode optical signal output from the second optical waveguide.

摘要翻译： 一对多模式转换器和使用该模式转换器的光码分多址系统。 模式转换器包括第一，第二和第三光波导。 第一光波导由单模光纤形成，并输出单模光信号。 第二光波导将从第一光波导输出的单模光信号转换为多模光信号，并且允许单模光信号的光功率耦合到多模光信号的每个模式。 第三光波导由多模光纤形成，并且传输从第二光波导输出的多模光信号。

公开(公告)号：US08150259B2

公开(公告)日：2012-04-03

申请号：US12240121

申请日：2008-09-29

申请人： Bong-Kyu Kim ,  Yool Kwon ,  Bin-Yeong Yoon

发明人： Bong-Kyu Kim ,  Yool Kwon ,  Bin-Yeong Yoon

IPC分类号： H04J14/00 ,  H04J4/00

CPC分类号： H04J14/0282

摘要： A passive optical network system includes: a plurality of optical signal splitter receiving optical signals from a plurality of optical network units (ONUs) to provide a plurality of upstream optical signals having different wavelengths; a hybrid optical filter multiplexing the plurality of upstream optical signals in a wavelength division multiplexing (WDM) scheme; and an optical line terminal (OLT) receiving the multiplexed upstream optical signals in a time division multiplexing (TDM) scheme. Therefore, the network system can be easily expanded when the number of subscribers increases, and the optical loss can be minimized.

摘要翻译： 无源光网络系统包括：多个光信号分离器，其接收来自多个光网络单元（ONU）的光信号，以提供具有不同波长的多个上游光信号; 混合光滤波器，以波分复用（WDM）方式复用多个上游光信号; 以及以时分复用（TDM）方式接收复用的上行光信号的光线路终端（OLT）。 因此，当用户数量增加时，可以容易地扩展网络系统，并且可以使光损耗最小化。

公开(公告)号：US08018595B2

公开(公告)日：2011-09-13

申请号：US12406851

申请日：2009-03-18

申请人： Chul Huh ,  Kyung Hyun Kim ,  Hyunsung Ko ,  Wanjoong Kim ,  Gun Yong Sung ,  Seon-Hee Park ,  Bong-Kyu Kim

发明人： Chul Huh ,  Kyung Hyun Kim ,  Hyunsung Ko ,  Wanjoong Kim ,  Gun Yong Sung ,  Seon-Hee Park ,  Bong-Kyu Kim

IPC分类号： G01N21/00

CPC分类号： G01N21/77 ,  G01N21/554 ,  G01N2021/7783

摘要： Provided is an apparatus for detecting bio materials and a method for detecting bio materials by using the apparatus. The apparatus includes a bio material reacting unit, an optical source unit, and a detecting unit. The bio material reacting unit includes bio sensing materials immobilized on gold nanoparticles. The optical source unit emits light toward the bio material reacting unit. The detecting unit measures variations of surface absorbance of the gold nanoparticles by detecting light transmitted through the bio material reacting unit before and after a bio material is bound to the bio sensing materials.

摘要翻译： 提供了一种用于检测生物材料的装置和通过使用该装置检测生物材料的方法。 该装置包括生物材料反应单元，光源单元和检测单元。 生物材料反应单元包括固定在金纳米颗粒上的生物传感材料。 光源单元向生物材料反应单元发射光。 检测单元通过在生物材料结合到生物传感材料之前和之后检测透过生物材料反应单元的光来测量金纳米颗粒的表面吸光度的变化。

公开(公告)号：US20050141899A1

公开(公告)日：2005-06-30

申请号：US10940790

申请日：2004-09-13

申请人： Sung-Chan Cho ,  Bong-Kyu Kim ,  Young-Hee Yeon ,  Byoung-Whi Kim

发明人： Sung-Chan Cho ,  Bong-Kyu Kim ,  Young-Hee Yeon ,  Byoung-Whi Kim

IPC分类号： H04B10/02 ,  G02B6/14 ,  G02B6/34 ,  H04B10/13 ,  H04B10/04 ,  G02B6/26

CPC分类号： H04B10/2581 ,  G02B6/14 ,  G02B6/2932

摘要： A single-to-multi mode converter and an optical code division multiple access system using the same. The mode converter includes first, second, and third optical waveguides. The first optical waveguide is formed of a single-mode optical fiber and outputs a single-mode optical signal. The second optical waveguide converts the single-mode optical signal output from the first optical waveguide to a multi-mode optical signal and allows the optical power of the single-mode optical signal to be coupled to each mode of the multi-mode optical signal. The third optical waveguide is formed of a multi-mode optical fiber and transmits the multi-mode optical signal output from the second optical waveguide.

摘要翻译： 一对多模式转换器和使用该模式转换器的光码分多址系统。 模式转换器包括第一，第二和第三光波导。 第一光波导由单模光纤形成，并输出单模光信号。 第二光波导将从第一光波导输出的单模光信号转换为多模光信号，并且允许单模光信号的光功率耦合到多模光信号的每个模式。 第三光波导由多模光纤形成，并且传输从第二光波导输出的多模光信号。