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31.发明公开
公开(公告)号：KR1020150024279A
公开(公告)日：2015-03-06
申请号：KR1020140110654
申请日：2014-08-25
Applicant: 한국전자통신연구원
Abstract: 시간 및 주파수 분할 다중 - 수동형 광 네트워크(TWDM-PON)에서 파장가변 광망 유닛의 물리계층 파장 결정 방법이 개시된다. 먼저, TWDM-PON 시스템에서 사용될 수 있는 채널들 중에서 임의의 채널의 하향 파장에 파장가변 수신기의 수신 파장을 맞춘다. 그리고 소정의 시간 동안 파장가변 수신기가 신호 손실(LOS) 상태를 유지하는지 또는 LOS 상태가 해제되는지를 확인한다. 확인 결과 파장가변 수신기의 LOS 상태가 해제되면, 해당 채널에서 후속되는 링크 설정 절차를 수행하지만, LOS 상태가 유지되는 것으로 확인되면 다른 채널의 하향 파장으로 파장가변 수신기의 수신 파장을 변경한다.
Abstract translation: 本发明的目的是提供一种用于确定物理层波长的方法，由此具有可调谐接收机的光网络单元（ONU）能够有效地选择可用信道，即系统中的下行波长，例如 一种TWDM-PON系统，其中可以操作多个信道。 提供了一种用于确定时间波分复用无源光网络（TWDM-PON）中的可调谐ONU的物理层波长的方法。 首先，可调谐接收机的接收波长被调谐到在TWDM-PON系统中可操作的多个信道中的一个的下行波长。 然后，检查可调谐接收机是否保持信号丢失的状态（LOS）或者LOS的状态被清除了预定的时间段。 响应于确定LOS的状态被清除，ONU在该信道中执行后续链路建立过程，并且响应于确定LOS的状态的确定，可调谐接收机的接收波长被改变到下游 另一个通道的波长。
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公开(公告)号：KR1020140100163A
公开(公告)日：2014-08-14
申请号：KR1020130013087
申请日：2013-02-05
Applicant: 한국전자통신연구원
IPC: H04J14/02
CPC classification number: H04J14/0227 , H04J3/1694 , H04J14/0246 , H04J14/025
Abstract: The present invention relates to a method for selecting a wavelength of an optical network terminal in a passive optical network, comprising: a usage wavelength candidate selecting step where a prestored basic wavelength is selected as a usage wavelength candidate or a wavelength is changed and the changed wavelength is selected as a usage wavelength candidate in a case that a predetermined wavelength changing condition is satisfied; a downward synchronizing step where frame synchronization is obtained for a downward signal having the same wavelength as the selected usage wavelength candidate; and a terminal registering step where a registration request message is transmitted to an optical line terminal (OLT) which has transmitted the downward signal in the case that the frame synchronization is obtained, and allocating the usage wavelength candidate as a usage wavelength used in communications with the optical line terminal and registering the usage wavelength in the optical line terminal in a case that a registration admission message is received from the optical line terminal.
Abstract translation: 本发明涉及一种用于选择无源光网络中的光网络终端的波长的方法，包括：使用波长候选选择步骤，其中预先存储的基本波长被选择为使用波长候选或波长改变并且改变 在满足预定波长变化条件的情况下，选择波长作为使用波长候选; 向下同步步骤，对于与所选择的使用波长候选具有相同波长的向下信号获得帧同步; 以及终端登记步骤，其中在获得帧同步的情况下向已经发送了向下信号的光线路终端（OLT）发送注册请求消息，并且将使用波长候选分配为与通信中使用的使用波长 在从光线路终端接收到登记许可消息的情况下，将光线路终端注册到光线路终端中的使用波长。
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公开(公告)号：KR1020140088436A
公开(公告)日：2014-07-10
申请号：KR1020130000304
申请日：2013-01-02
Applicant: 한국전자통신연구원
CPC classification number: H04J14/0221 , H04B10/272
Abstract: Disclosed are an optical network terminating device with a power saving function and a power saving method thereof. According to an embodiment of the present invention, the optical network terminating device includes a first signal transceiving part transceiving a signal with an optical line terminal, a second signal transceiving part transceiving a signal with a subscriber terminal through multiple communication terminals, a signal processing part controlling the signals transceived through the first and second signal transceiving parts, and a processor controlling power of the signal processing part and the first transceiving part according to the reception of data traffic through the communication terminals.
Abstract translation: 公开了具有省电功能的光网络终端装置及其省电方法。 根据本发明的实施例，光网络终端装置包括：利用光线路终端收发信号的第一信号收发部分，通过多个通信终端与用户终端收发信号的第二信号收发部分;信号处理部分 控制通过第一和第二信号收发部分收发的信号，以及根据通过通信终端的数据业务的接收来控制信号处理部分和第一收发部分的功率的处理器。
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34.发明公开
公开(公告)号：KR1020140068779A
公开(公告)日：2014-06-09
申请号：KR1020130145630
申请日：2013-11-27
Applicant: 한국전자통신연구원
Abstract: Disclosed is a time and wavelength division multiplexed passive optical network (TWDM-PON) system and a communication connection method thereof. According to an embodiment of the present invention, the communication connection method is a method of communicating with other optical line devices and an optical network unit which is communicatively connected to any one of the optical line devices. The optical network unit receives a wavelength change command on the operating wavelengths which are assigned to an optical line device to be connected and synchronizes to a downlink signal on the operating wavelengths by changing the wavelength in response to a wavelength change order. Furthermore, the optical network unit communicates with the optical line device by receiving an upstream discovery grant signal transmitted from the optical line device to be connected and by transmitting a reception confirmation signal therefor.
Abstract translation: 公开了一种时分波分复用无源光网络（TWDM-PON）系统及其通信连接方法。 根据本发明的一个实施例，通信连接方法是与其他光线路设备通信的方法，以及通信地连接到任何一个光线路设备的光网络单元。 光网络单元接收对要连接的光线路装置的工作波长的波长变化指令，并根据波长变化顺序改变波长，同步于工作波长的下行链路信号。 此外，光网络单元通过接收从要连接的光线路装置发送的上游发现许可信号并通过发送接收确认信号与光线路装置进行通信。
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公开(公告)号：KR101310455B1
公开(公告)日：2013-09-24
申请号：KR1020090120900
申请日：2009-12-08
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/43
CPC classification number: H04J14/0282 , H04B10/2587 , H04B10/506
Abstract: 본 발명은 씨앗 광원으로부터 수신한 씨앗광을 파장 역다중화 하는 제1 파장 다중화 장치, 및 적어도 하나의 가입자측 단말 장치로부터 상기 파장 역다중화된 씨앗광을 이용하여 생성된 상향 광신호를 수신하여 파장 역다중화 하는 제2 파장 다중화 장치를 포함하는 국사용 광장치(OLT)를 제안한다.
파장분할 다중화, 수동형 광가입자망, 씨앗 광원-
Patent Agency Ranking36.发明公开
公开(公告)号：KR1020130033398A
公开(公告)日：2013-04-03
申请号：KR1020130017215
申请日：2013-02-18
Applicant: 한국전자통신연구원
IPC: H04B10/50 , H04B10/2581
Abstract: PURPOSE: An optical transmission device in a WDM-PON(Wavelength Division Multiplexing-Passive Optical Network) and an optical transmission method thereof are provided to reduce the reflection sensitivity in an optical link by extending the line width of an output spectrum in a laser diode. CONSTITUTION: A laser diode(10) generates an optical signal. The laser diode uses the generated optical signal as a seed light. A control unit(20) controls to output the optical signal by applying direct bias and an RF(Radio Frequency) signal to the laser diode in the threshold current of the laser diode. The control unit extends the line width of an output spectrum in the laser diode. [Reference numerals] (10) Laser diode; (200) Input control unit; (210) Output control unit;
Abstract translation: 目的：提供WDM-PON（波分复用无源光网络）及其光传输方法中的光传输装置，通过扩展激光二极管中的输出光谱的线宽来减小光链路中的反射灵敏度 。 构成：激光二极管（10）产生光信号。 激光二极管使用所产生的光信号作为种子光。 控制单元（20）通过在激光二极管的阈值电流中向激光二极管施加直接偏压和RF（射频）信号来控制输出光信号。 控制单元延长激光二极管中输出光谱的线宽。 （附图标记）（10）激光二极管; （200）输入控制单元; （210）输出控制单元;
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公开(公告)号：KR1020120133159A
公开(公告)日：2012-12-10
申请号：KR1020110051688
申请日：2011-05-30
Applicant: 한국전자통신연구원
CPC classification number: H01S5/0683 , G05F1/463 , G05F1/567
Abstract: PURPOSE: A current control device and method of an optical transmitter are provided to maximize energy efficiency by assuring uncooled operation of a light source. CONSTITUTION: A temperature reference control signal generator(330) generates a current control signal according to temperature variation in a light source. A current controller generates a variable current according to the current control signal. The current control signal includes a bias current control signal and a modulation current control signal. The current controller includes a bias current controller(310) and a modulation current controller(320). [Reference numerals] (310) Bias current controller; (311) Variable bias current generator; (312) Bias current corrector; (320) Modulation current controller; (321) Variable modulation current generator; (322) Modulation current corrector; (330) Temperature reference control signal generator; (331) Temperature change detector; (332) Bias current control signal generator; (333) Modulation current control signal generator
Abstract translation: 目的：提供光发射机的电流控制装置和方法，以通过确保光源的非冷却操作来最大限度地提高能量效率。 构成：温度基准控制信号发生器（330）根据光源的温度变化产生电流控制信号。 电流控制器根据电流控制信号产生可变电流。 电流控制信号包括偏置电流控制信号和调制电流控制信号。 电流控制器包括偏置电流控制器（310）和调制电流控制器（320）。 （参考号）（310）偏置电流控制器; （311）可变偏置电流发生器; （312）偏置电流校正器; （320）调制电流控制器; （321）可变调制电流发生器; （322）调制电流校正器; （330）温度参考控制信号发生器; （331）温度变化检测器; （332）偏置电流控制信号发生器; （333）调制电流控制信号发生器
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公开(公告)号：KR1020120132430A
公开(公告)日：2012-12-05
申请号：KR1020120056264
申请日：2012-05-25
Applicant: 한국전자통신연구원
IPC: H04J14/02 , H04B10/2581
CPC classification number: H04J14/0242 , H04B10/0795 , H04B10/2587 , H04J14/02 , H04J2014/0253
Abstract: PURPOSE: A wavelength division multiplexing optical communication system and a method for measuring optical output signal performance therefor are provided to improve transmission and reception performance of an optical signal by providing a determination threshold adjusting device. CONSTITUTION: A service provider apparatus comprises a plurality of first light transmitting and receiving devices, a first light multiplexer and demultiplexer for multiplexing and demultiplexing light which is transmitted and received in the plurality of first light transmitting and receiving device, and a seed light source which provides seed light. A plurality of subscriber devices comprise a second light transmitting and receiving device, respectively. A local node connects a service provider device with the plurality of subscriber devices through a DWDM(dense wavelength division multiplexing) link including a second light multiplexer and demultiplexer and a single mode optical fiber for transmission. Light intensity of an output signal from the second light transmitting and receiving device is determined by compensating a loss value. [Reference numerals] (AA) Spectrum before locking; (BB) Spectrum after locking
Abstract translation: 目的：提供一种波分复用光通信系统和用于测量其光输出信号性能的方法，以通过提供确定阈值调整装置来提高光信号的发射和接收性能。 构成：服务提供者装置包括多个第一光发送和接收装置，用于在多个第一光发射和接收装置中发送和接收的光的多路复用和解复用的第一光复用器和解复用器，以及种子光源， 提供种子光。 多个用户设备分别包括第二光发射和接收设备。 本地节点通过包括第二光复用器和解复用器的DWDM（密集波分复用）链路和用于传输的单模光纤连接服务提供商设备与多个订户设备。 通过补偿损耗值来确定来自第二光发射和接收装置的输出信号的光强度。 （附图标记）（AA）锁定前的频谱; （BB）锁定后的频谱
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公开(公告)号：KR1020120072029A
公开(公告)日：2012-07-03
申请号：KR1020100133792
申请日：2010-12-23
Applicant: 한국전자통신연구원
IPC: H01S5/026
CPC classification number: H04J14/0279 , H04B10/506 , H04J14/0258 , H04J14/0272
Abstract: PURPOSE: A wavelength non-dependence optical source operating apparatus is provided to optimally operate wavelength non-dependence optical sources based on the identified wavelength values by using a wavelength identification signal. CONSTITUTION: A seed optical signal generation unit(130) creates one or more seed optical signals based on wavelength identification signals(121~123). A wavelength optical detecting unit(170) detects the wavelength identification signals from the created seed optical signals. An extraction unit(180) extracts wavelength values matched with the detected wavelength identification signal. The extraction unit extracts the operation condition of a wavelength-independent optical source matched with the extracted wavelength values. An operating unit(190) operates the wavelength non-dependence optical sources.
Abstract translation: 目的：提供一种波长非依赖光源操作装置，通过使用波长识别信号，基于所识别的波长值来优化波长非依赖光源的操作。 构成：种子光信号生成单元（130）基于波长识别信号（121〜123）创建一个或多个种子光信号。 波长光学检测单元（170）从产生的种子光信号中检测波长识别信号。 提取单元（180）提取与检测到的波长识别信号匹配的波长值。 提取单元提取与提取的波长值相匹配的与波长无关的光源的操作条件。 操作单元（190）操作波长非依赖光源。
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公开(公告)号：KR1020110071786A
公开(公告)日：2011-06-29
申请号：KR1020090128435
申请日：2009-12-21
Applicant: 한국전자통신연구원
IPC: G02B6/42
Abstract: PURPOSE: A plug type optical transmitting and receiving module is provided to improve the spatial utility of the module by changing the structure of small form-factor pluggable main body and the structure of a printed circuit board. CONSTITUTION: A main body(10) is composed of an upper body(12) and a lower body(14). A light transmitting element(20) and a light receiving element are installed in the main body. A printed circuit board controls each element by being in connection with the light transmitting element and the light receiving element. The printed circuit board is composed of a first printed circuit board(32), a second printed circuit board(34), and a third printed circuit board(36). A standard light connector(24) is combined with the front side of the main body.
Abstract translation: 目的：通过改变小尺寸可插拔主体的结构和印刷电路板的结构，提供一种插头式光学发射和接收模块，以改善模块的空间效用。 构成：主体（10）由上体（12）和下体（14）构成。 光传输元件（20）和光接收元件安装在主体中。 印刷电路板通过与透光元件和光接收元件连接来控制每个元件。 印刷电路板由第一印刷电路板（32），第二印刷电路板（34）和第三印刷电路板（36）组成。 标准的光连接器（24）与主体的前侧相结合。
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