公开(公告)号：KR1020100092853A

公开(公告)日：2010-08-23

申请号：KR1020090055072

申请日：2009-06-19

Applicant: 한국과학기술원

Inventor： 이창희 ,  김준영 ,  이종훈 ,  문실구 ,  문정형 ,  이훈근 ,  오상민 ,  문상록

IPC: H04B10/2581 ,  H04B10/00 ,  H04B10/50

CPC classification number: H04B10/506

Abstract: PURPOSE: A device for transmitting low noise light signals with a low noise multi wavelength light source, a device for transmitting a broadcasting signal using a low noise multi-wavelength light source, and an optical subscriber network with the same are provided to generate a plurality of light oscillated at different wavelengths by one light source when an optical subscriber network uses a low noise multi wavelength light source. CONSTITUTION: One wavelength division multiplexer/inverse multiplexer(412) is connected to each of a plurality of LMLS(Low-noise Multi-wavelength Light Source)s(422,423,424). The wavelength division multiplexer/inverse multiplexer is made of one input terminal and N output terminals. Output lights of the LMLSs are incident on the output terminal of the multiplexer/inverse multiplexer. Spectrum division of the output light is performed. The divided optical signals are multiplexed in each of the multiplexer/inverse multiplexer. The multiplexed optical signals are outputted to an input terminal.

Abstract translation: 目的：提供一种利用低噪声多波长光源发送低噪声光信号的装置，用于使用低噪声多波长光源发送广播信号的装置以及具有该装置的光用户网络，以产生多个 当光用户网络使用低噪声多波长光源时，由一个光源在不同波长下振荡的光。 构成：一个波分复用器/反相多路复用器（412）连接到多个LMLS（低噪声多波长光源）（422,423,424）中的每一个。 波分复用器/反相多路复用器由一个输入端子和N个输出端子组成。 LMLS的输出光入射到多路复用器/反相多路复用器的输出端。 执行输出光的光谱分割。 分割的光信号被复用在多路复用器/反相多路复用器中的每一个中。 复用的光信号被输出到输入端。

公开(公告)号：KR100934467B1

公开(公告)日：2010-01-06

申请号：KR1020080014202

申请日：2008-02-15

Applicant: 한국과학기술원

Inventor： 이창희 ,  김준영 ,  문실구 ,  이훈근

IPC: H04B10/03 ,  H04B10/25

Abstract: 본 발명은 분배망에서 발생하는 광선로 장애의 자기 복구가 가능한 광 가입자망을 개시한다.
본 발명에 따른 분배망에서 발생하는 광선로 장애의 자기 복구가 가능한 광 가입자망에서는 각각의 광종단장치(OLT) 및 가입자장치(ONT)의 광송수신기 조합의 앞단에 1x2 광 스위치, 또는 가입자장치(ONT)의 광송수신기 조합의 뒷단에 복수개의 1x2 전기 스위치 또는 이너넷 스위치가 제공된다. 이들 스위치는 분배 광케이블에 장애가 발생하면 스위치의 상태를 바꾸어 장애가 발생하지 않은 분배 광케이블을 통해 신호가 전송되도록 한다. 그 결과, 분배 광케이블 상에서 장애가 발생하더라도 각 가입자에게 상하향신호가 제공될 수 있다.
광 가입자망, 분배망, 광선로, 자기 복구

公开(公告)号：KR100876087B1

公开(公告)日：2008-12-26

申请号：KR1020070042231

申请日：2007-04-30

Applicant: 한국과학기술원

Inventor： 이창희 ,  최기만 ,  문실구 ,  문정형 ,  이훈근

IPC: H04B10/27 ,  H04B10/25

Abstract: A method of assigning wavelength bands for broadband transmission is provided to increase the number of subscribers and enable the broadband transmission by using a WDM-filter as maintaining the infrastructure of an existing subscriber loop network as it is. An existing SMF and the cyclic property of AWG within a WDM-PON are used. One or more third wavelength division multiplexer filter(WDM3) and one or more fifth WDM filter(WDM5), for combining or separates the A-band and or from B-band, are respectively added to the rear ends of the cyclic first AWG and the cyclic second AWG which are positioned at an OLT and RN. Therefore, the B-band can be used as the new transmission band.

Abstract translation: 提供了一种为宽带传输分配波长带的方法，以增加用户数量并通过使用WDM滤波器实现宽带传输，从而保持现有用户环路网络的基础设施原样。 使用现有的SMF和WDM-PON内的AWG的循环特性。 将一个或多个第三波分多路复用器滤波器（WDM3）和一个或多个第五WDM滤波器（WDM5）分别添加到循环第一AWG的后端，用于组合或分离A波段和/或B波段 位于OLT和RN处的循环第二AWG。 因此，B频带可以用作新的传输频带。

公开(公告)号：KR1020080109377A

公开(公告)日：2008-12-17

申请号：KR1020070057594

申请日：2007-06-13

Applicant: 한국과학기술원

Inventor： 이창희 ,  이혁재 ,  이훈근

IPC: H04B10/2581 ,  H04B10/25

CPC classification number: H04B10/2525 ,  H04B10/40 ,  H04J14/02

Abstract: A WDM-PON(Wavelength Division Multiplexing-Passive Optical Network) is provided to use F-P LD used as a light source and to use periodic AWG having periodic penetration characteristic performing a wavelength multiplexing and demultiplexing function. A WDM-PON(Wavelength Division Multiplexing-Passive Optical Network) multiplexes and demultiplexes transmitted light signal. A first optical transmitter-receiver of n receives and transmits optical signal. A second periodic AWG multiplexes and demultiplexes the transmitted optical signal and includes output ports of n. A second optical transmitter-receiver of n receives and transmits optical signal.

Abstract translation: 提供WDM-PON（波分多路复用无源光网络）以使用用作光源的F-P LD，并且使用具有执行波分复用和解复用功能的周期性穿透特性的周期性AWG。 WDM-PON（波分复用无源光网络）复用和解复用传输的光信号。 n的第一个光收发器接收并发送光信号。 第二个周期性AWG复用和解复用传输的光信号，并包括n的输出端口。 n的第二个光收发器接收并发送光信号。

公开(公告)号：KR100801329B1

公开(公告)日：2008-02-11

申请号：KR1020060130914

申请日：2006-12-20

Applicant: 한국과학기술원

Inventor： 이창희 ,  최기만 ,  문실구 ,  문정형 ,  이훈근

IPC: H04B10/00 ,  H04B10/25

CPC classification number: H04J14/0202 ,  H04J14/0216

Abstract: A wavelength band combining and separating device having three input/output ports is provided to add a wavelength band for new bidirectional transmission as receiving an existing wavelength band transmitted in both ways through an optical transmission path of one line, therefore high application can be accomplished. Two random input/output ports of three ports consist of the first edge filter for separating an X-band less than the first wavelength and an Y-band more than the second wavelength among wavelength bands of transmitted light, and the second edge filter for separating an X-band less than the first wavelength and an Y-band more than the second wavelength among the wavelength bands of the transmitted light. The remaining one port of the three ports consists of a CWDM(Coarse Wavelength-Division Multiplexing) filter for separating more than one Z-band of the third wavelength range within the Y-band more than the second wavelength.

Abstract translation: 提供具有三个输入/输出端口的波段组合和分离装置，用于将新的双向传输的波长带添加为通过一行的光传输路径以两路传输的现有波长带，因此可以实现高应用。 三个端口的两个随机输入/输出端口由用于分离小于第一波长的X波段的第一边缘滤波器和透射光的波长带中的第二波长之间的Y波段组成，并且用于分离的第二边缘滤波器 在透射光的波长带中小于第一波长的X波段和大于第二波长的Y波段。 三个端口的剩余一个端口由用于分离多于第二波长的Y波段内的第三波长范围的多于一个Z波段的CWDM（粗波分复用）​​滤波器组成。