公开(公告)号：US20140292413A1

公开(公告)日：2014-10-02

申请号：US14218234

申请日：2014-03-18

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Young-Ho KIM ,  Sang-Soo LEE

IPC分类号： H03F1/48 ,  H03F1/34

CPC分类号： H03F1/483 ,  H03F1/342 ,  H03F3/08 ,  H03F3/082 ,  H03F2200/36

摘要： A transimpedance pre-amplifier (TIA) with an improved bandwidth. In the TIA, a feedback circuit is added to a regulated cascode structure to be connected in parallel, so that an input resistance value is reduced and a bandwidth is easily broadened. Alternatively, an inductor is added to the regulated cascode structure, so that an input capacitance is reduced and bandwidth is easily broadened.

摘要翻译： 具有改进带宽的跨阻前置放大器（TIA）。 在TIA中，将反馈电路加到并联的调节共源共栅结构中，从而减小输入电阻值并容易地扩大带宽。 或者，将电感器添加到调节共源共栅结构中，使得输入电容减小并且带宽容易地变宽。

公开(公告)号：US20140233954A1

公开(公告)日：2014-08-21

申请号：US14186755

申请日：2014-02-21

申请人： Electronics and Telecommunications Research Institute

发明人： Han-Hyub LEE ,  Eun-Gu LEE ,  Sang-Soo LEE

IPC分类号： H04J14/02 ,  H04B10/272

CPC分类号： H04J14/025 ,  H04J14/0246 ,  H04J14/0273

摘要： Provided is a method of establishing a link between service provider equipment and subscriber equipment in a multi-wavelength passive optical network system. The method of establishing a link includes acquiring information about a wavelength plan of allocated wavelengths in the MW PON system; transmitting a first signal wavelength initialization request signal on a first upstream wavelength from physical layer to the service provider equipment; waiting for a response from the service provider equipment for a predetermined time interval after transmitting the first signal wavelength initialization request signal; and in response to failing to receive a response to the first signal-wavelength initialization request signal within the predetermined time interval, transmitting a second signal wavelength initialization request signal on a second upstream wavelength to the service provider equipment after the waiting.

摘要翻译： 提供了一种在多波长无源光网络系统中建立服务提供商设备和用户设备之间的链路的方法。 建立链路的方法包括获取关于MW PON系统中分配的波长的波长计划的信息; 将第一上行波长的第一信号波长初始化请求信号从物理层传送到服务提供商设备; 在发送第一信号波长初始化请求信号之后，等待来自服务提供商设备的预定时间间隔的响应; 并且响应于在所述预定时间间隔内未能接收到对所述第一信号波长初始化请求信号的响应，在所述等待之后向所述服务提供商设备发送第二上行波长的第二信号波长初始化请求信号。

公开(公告)号：US20140199074A1

公开(公告)日：2014-07-17

申请号：US14050465

申请日：2013-10-10

申请人： Electronics and Telecommunications Research Institute

发明人： Seung-Hyun CHO ,  Seung-Il MYONG ,  Kyeong-Hwan DOO ,  Jie-Hyun LEE ,  Sang-Soo LEE ,  Jong-Hyun Lee

IPC分类号： H04B10/27 ,  H04L27/26

CPC分类号： H04B10/27 ,  H04B10/548 ,  H04L27/2649 ,  H04L27/2697

摘要： An orthogonal frequency division multiple access-passive optical network including a plurality of optical network units each configured to generate orthogonal frequency division multiplexed signals, which are allocated thereto, based on a central frequency for frequency division multiplexing that is allocated in advance, and to use the generated signals in upstream transmission.

摘要翻译： 一种正交频分多址无源光网络，包括多个光网络单元，每个光网络单元被配置为基于预先分配的用于频分复用的中心频率而分配给它们的正交频分复用信号，并且使用 在上行传输中产生的信号。

公开(公告)号：US20140161461A1

公开(公告)日：2014-06-12

申请号：US14092260

申请日：2013-11-27

申请人： Electronics and Telecommunications Research Institute

发明人： Han-Hyub LEE ,  Sang-Soo LEE

IPC分类号： H04J14/02

CPC分类号： H04J3/0682 ,  H04J14/0226 ,  H04J14/0238 ,  H04J14/0282

摘要： A Time Wavelength Division Multiplexing-Passive Optical Network (TWDM-PON) system and a communication link method thereof are provided. The communication link method is a method whereby an Optical Network Unit (ONU) which has established communication link to one Optical Line Terminal (OLT) establishes communication link to a different OLT. The ONU receives a wavelength change instruction to change a wavelength thereof to an operating wavelength assigned to the different OLT, and change the wavelength in response to the wavelength change instruction to synchronize to a downstream signal of the operating signal. In addition, the ONU receives an upstream discovery grant signal from the different OLT, and transmits an acknowledgement message to notify the receipt of the upstream discovery grant signal, so that the ONU establishes communication link to the different OLT.

摘要翻译： 提供了时间波分复用无源光网络（TWDM-PON）系统及其通信链路方法。 通信链路方法是建立与一个光线路终端（OLT）的通信链路的光网络单元（ONU）建立到不同OLT的通信链路的方法。 ONU接收波长改变指令，将其波长改变为分配给不同OLT的工作波长，并且响应于波长改变指令改变波长以与操作信号的下行信号同步。 此外，ONU从不同的OLT接收到上游发现许可信号，并且发送确认消息以通知上游发现许可信号的接收，使得ONU建立到不同OLT的通信链路。

公开(公告)号：US20140153933A1

公开(公告)日：2014-06-05

申请号：US14094113

申请日：2013-12-02

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Eun-Gu LEE ,  Eui-Suk JUNG ,  Sil-Gu MUN ,  Han-Hyub LEE ,  Jyung-Chan LEE ,  Sang-Soo LEE ,  Jong-Hyun LEE

IPC分类号： H04B10/50

CPC分类号： H01S5/02272 ,  H01S5/0212 ,  H01S5/02212 ,  H01S5/02276 ,  H01S5/02415 ,  H01S5/0261 ,  H01S5/0425 ,  H01S5/06804 ,  H01S5/4025

摘要： A multi-channel transmitter optical sub-assembly (TOSA) is provided. The multi-channel TOSA includes a stem including a sub-mount, a plurality of light sources mounted on the sub-mount, a common ground pad disposed at the sub-mount and connected to ground electrodes of the light sources in common, a common lead pin installed at the stem, and connected to the common ground pad, and a thermistor mounted on the sub-mount along with the light sources.

摘要翻译： 提供多通道发射机光学子组件（TOSA）。 多通道TOSA包括一个杆，它包括一个副安装座，多个安装在子座上的光源，一个共同的接地焊盘，设置在子座上并共同连接到光源的接地电极，一个共同的 引脚安装在杆上，并连接到公共接地垫，以及与光源一起安装在子安装座上的热敏电阻。

公开(公告)号：US20140147118A1

公开(公告)日：2014-05-29

申请号：US14086498

申请日：2013-11-21

申请人： Electronics and Telecommunications Research Institute

发明人： Jyung-Chan LEE ,  Eun-Gu LEE ,  Sil-Gu MUN ,  Eui-Suk JUNG ,  Sang-Soo LEE

IPC分类号： H04J14/02 ,  H04B10/40

CPC分类号： H04J14/025 ,  H04B10/40 ,  H04J14/0282

摘要： There is provided an optical transceiver apparatus including an optical transmitter configured to transmit light of variable wavelength, an optical receiver configured to receive light generated from an opposite light source, and a controller configured to perform initialization to a wavelength corresponding to when an intensity of light received by the optical receiver is greater than or equal to a reference power, while varying the wavelength of light output by the optical transmitter.

摘要翻译： 提供了一种光收发器装置，包括：配置成透射可变波长的光的光发送器;被配置为接收从相对光源产生的光的光接收器;以及控制器，被配置为执行初始化到与光强度相对应的波长 由光接收器接收的光束大于或等于参考光功率，同时改变由光发射器输出的光的波长。

公开(公告)号：US20140294026A1

公开(公告)日：2014-10-02

申请号：US14080297

申请日：2013-11-14

申请人： Electronics and Telecommunications Research Institute

发明人： Choong-Reol YANG ,  Sang-Soo LEE

IPC分类号： H01S5/06

CPC分类号： H01S5/0427 ,  H01S5/06226 ,  H04B10/504

摘要： A laser diode driving apparatus for optical communication is provided so as to prepare a low-price and low-power optical transmission and reception apparatus by realizing the high performance laser diode driving apparatus for optical communication with a structure appropriate for a multichannel array that can easily and effectively provide stable bandwidths and high gains of the optical communication laser diode at a transmission end of the optical transmission and reception apparatus.

摘要翻译： 提供了一种用于光通信的激光二极管驱动装置，以便通过实现具有适于多通道阵列的结构的用于光通信的高性能激光二极管驱动装置来制备低价格和低功率的光发送和接收装置，其可以容易地 并且在光发送和接收装置的发送端有效地提供光通信激光二极管的稳定带宽和高增益。

公开(公告)号：US20140186042A1

公开(公告)日：2014-07-03

申请号：US13964569

申请日：2013-08-12

申请人： Electronics and Telecommunications Research Institute

发明人： Sil-Gu MUN ,  Eun-Gu LEE ,  Eui-Suk JUNG ,  Sang-Soo LEE

IPC分类号： H04B10/60

CPC分类号： H04B10/60 ,  H04B10/07957

摘要： Provided are an optical receiver having a wavelength recognition function, and a device and method for recognizing wavelengths using the same. The optical receiver according to an embodiment of the invention includes a splitter configured to split light intensity of input optical signals, a first receiver configured to photoelectrically convert the optical signals split using the splitter, a filter having different pass band characteristics based on wavelengths of the optical signals split using the splitter, a second receiver configured to photoelectrically convert the optical signals passing through the filter, and a comparator configured to compare the optical signals respectively, photoelectrically converted by the first and second receivers and recognize wavelengths of the input optical signals.

摘要翻译： 提供具有波长识别功能的光接收机，以及用于识别使用其的波长的设备和方法。 根据本发明的实施例的光接收机包括分配器，其被配置为分离输入光信号的光强度;第一接收器，被配置为对使用分离器分割的光信号进行光电转换，具有不同通带特性的滤波器基于 使用分离器分割的光信号，被配置为对通过滤光器的光信号进行光电转换的第二接收器和配置成比较由第一和第二接收器进行光电转换并识别输入光信号的波长的光信号的比较器。

公开(公告)号：US20140153873A1

公开(公告)日：2014-06-05

申请号：US14081197

申请日：2013-11-15

申请人： Electronics and Telecommunications Research Institute

发明人： Sae-Kyoung KANG ,  Sang-Soo LEE

IPC分类号： G02B6/34

CPC分类号： G02B6/34 ,  G02B6/1228 ,  G02B6/29334 ,  G02B6/30 ,  G02B2006/12107

摘要： An optical coupling module for a silicon photonics chip in which a grating is formed on an optical waveguide, and a material having an intermediate refractive index between refractive indexes of a core and a cladding for side surface optical coupling of the silicon photonics chip is provided. The optical coupling module which is optically coupled with an internal/external optical fiber comprises a core transmitting light, and a cladding covering the core and holding the light in the core through total internal reflection, wherein a grating is formed at one end of the core, and a refractive element is formed between the one end of the core and the cladding, has an intermediate refractive index between the refractive indexes of the core and the cladding, and is optically coupled with the internal/external optical fiber.

摘要翻译： 提供了一种用于硅光子芯片的光耦合模块，其中在光波导上形成光栅，并且提供了具有用于硅光子芯片的侧表面光耦合的芯和包层的折射率之间的中间折射率的材料。 与内部/外部光纤光学耦合的光耦合模块包括一个透射光的芯和一个覆盖芯的包层，并通过全内反射将光保持在芯中，其中光栅形成在芯的一端 并且在芯的一端和包层之间形成折射元件，在芯和包层的折射率之间具有中间折射率，并且与内部/外部光纤光学耦合。

公开(公告)号：US20150214387A1

公开(公告)日：2015-07-30

申请号：US14592316

申请日：2015-01-08

申请人： Electronics and Telecommunications Research Institute

发明人： Sae-Kyoung KANG ,  Sang-Soo LEE

IPC分类号： H01L31/028 ,  H01L31/0232 ,  H01L31/02 ,  H01L31/103

CPC分类号： H01L31/028 ,  G02B6/12004 ,  G02B2006/12061 ,  G02B2006/12123 ,  H01L31/02005 ,  H01L31/022408 ,  H01L31/02327 ,  H01L31/103 ,  H01L31/109 ,  Y02E10/547

摘要： A photodetector is provided. The photodetector includes first metal layers in which optical signals are converted into electric signals; first vias formed between the first metal layers and doped areas which include doped areas on both ends of an optical waveguide and a doped area on a growing portion, which absorbs a light signal transmitted through the optical waveguide; second metal layer in which optical signals are converted into electric signals; and second vias formed between the first metal layers and the second metal layers.

摘要翻译： 提供光电检测器。 光电检测器包括第一金属层，其中光信号被转换成电信号; 形成在第一金属层和掺杂区域之间的第一通孔，所述掺杂区域包括光波导两端的掺杂区域和吸收透过光波导的光信号的生长部分上的掺杂区域; 第二金属层，其中光信号被转换成电信号; 以及形成在第一金属层和第二金属层之间的第二通孔。