公开(公告)号：KR100305106B1

公开(公告)日：2001-11-22

申请号：KR1019980038228

申请日：1998-09-16

Applicant: 배성호 ,  윤호성 ,  안성준 ,  박남규

Inventor： 윤호성 ,  배성호 ,  안성준 ,  박남규

IPC: G02B6/00

Abstract: 이득 평탄도 모니터링 장치를 구비하여 다채널 이득 평탄화 EDFA의 제어를 행하는 기술을 개시하고 있다. 본 발명에 의하면, 이득 평탄화된 대역폭의 양단으로부터 탐사광을 추출하여 이득 평탄도 모니터링, 이득 등화, 이득 과도현상의 억제를 EDFA의 동작조건에 무관하게 수행할 수 있기 때문에, 종래기술과는 달리 제어 파라미터의 측정 및 결정에 많은 노력이 소모되지 않는다.

公开(公告)号：KR100341932B1

公开(公告)日：2002-06-24

申请号：KR1019990049975

申请日：1999-11-11

Applicant: 박남규

Inventor： 박남규 ,  배성호 ,  이덕기 ,  한권훈 ,  이병철

IPC: G02B6/02

Abstract: 본발명은 OTDR(optical time domain reflectometry)를이용하여증폭 WDM 시스템(amplified wavelength division multiplexed system)을모니터링하는방법에관한것이다. 본발명의방법은, 전송신호의발신단과수신단을가지며, 상기전송신호를증폭하기위한복수의어븀도핑된광섬유증폭기들을포함하는증폭파장분할다중시스템을모니터링하는방법에있어서, 상기시스템의수신단에서 OTDR 펄스들을상기전송신호의역방향으로넣어주는단계와; 상기시스템에서반사또는산란되는펄스만을상기전송신호와구분하여받아들이는단계와; 상기반사또는산란되는펄스를시간에대해분석하는단계를구비함으로써장애의유형과위치를파악하는것을특징으로한다. 본발명에따르면, 광신호의전송과동시에시스템모니터링이가능하며, OTDR 펄스를증폭하기위한추가의 EDFA가필요없다는점이기존에제안된방법들과차별성을가진다. 또한, EDFA의교차이득변조로인한전송광신호의파워감소량이인라인 EDFA의개수에거의무관하게되어, 전송신호의왜곡으로인한수신에러율(bit error rate)이커지는것을막을수 있다.

公开(公告)号：KR1020010046269A

公开(公告)日：2001-06-15

申请号：KR1019990049975

申请日：1999-11-11

Applicant: 박남규

Inventor： 박남규 ,  배성호 ,  이덕기 ,  한권훈 ,  이병철

IPC: G02B6/02

Abstract: PURPOSE: A method of monitoring an amplified WDM(Wavelength Division Multiplexed) system using OTDR(Optical Time Domain Reflectometry) proceeding against transmission data is provided to reduce the impact of data losses and to amplify OTDR pulses without EDFA(In-line erbium Doped Fiber Amplifier). CONSTITUTION: In the method of monitoring an amplified WDM system, optical signals from optical transceivers(Tx1-TxN) go through a multiplexer(100) and an optical amplifier(110). And the signals are combined at a WDM coupler(120) and given as an incidence to a first-level optic-fiber span(130). The incidence optic signals go through, in turn, a first-level EDFA(140), a second-level optic-fiber span(132), a second-level EDFA(142), a third-level optic-fiber span(134) and a WDM isolator(122) and arrive at a receiver(RX). Meanwhile, an OTDR monitor(150) locates at the same level with the receiver(RX) sends OTDR pulses in the opposite direction of transmitted optic signals. Here, the first-level and second-level EDFAs(140,142) enables duplex transmission only for signals having the wavelength of through a change of the EDFA structure.

Abstract translation: 目的：提供一种使用OTDR（光时域反射测量）对发射数据进行监测的放大WDM（波分复用）​​系统的方法，以减少数据丢失的影响并放大没有EDFA的OTDR脉冲（在线铒掺杂光纤 放大器）。 构成：在监测放大的WDM系统的方法中，来自光收发器（Tx1-TxN）的光信号经过多路复用器（100）和光放大器（110）。 并且信号在WDM耦合器（120）处被组合，并且作为入射到第一级光纤跨度（130）。 入射光信号依次通过第一级EDFA（140），二级光纤跨段（132），二级EDFA（142），第三级光纤跨距（134 ）和WDM隔离器（122）并到达接收器（RX）。 同时，OTDR监视器（150）位于与接收器相同的电平（RX），在与传输的光信号相反的方向上发送OTDR脉冲。 这里，第一级和第二级EDFA（140,142）仅对具有通过EDFA结构的变化的波长的信号实现双工传输。

公开(公告)号：KR1020000019895A

公开(公告)日：2000-04-15

申请号：KR1019980038228

申请日：1998-09-16

Applicant: 배성호 ,  윤호성 ,  안성준 ,  박남규

Inventor： 윤호성 ,  배성호 ,  안성준 ,  박남규

IPC: G02B6/00

Abstract: PURPOSE: An optical fiber amplifier equipped with a gain flatness monitoring and controller is provided to easily measure and determine a pa RAMeter by monitoring and controlling an Erbium-Doped Fiber Amplifier(EDFA). CONSTITUTION: An optical fiber amplifier equipped with a gain flatness monitoring and controller comprises an optical fiber, a pumping device, an input device, an output device, a device for obtaining an exploring beam having various wave length, a device for amplifying the exploring beam, a difference device, and a controller. The optical fiber transmits an amplified optical signal. The pumping device is connected to the optical fiber. The input device receives a multiple wave length signal. The output device receives the amplified optical signal. The device for obtaining the exploring beam obtains the exploring beam having various wave length. The amplifier amplifies the exploring beam. The difference device differentiates the exploring beam. The controller provides the differentiated amount as a pa RAMeter of the pumping device.

Abstract translation: 目的：提供一种配备增益平坦度监测和控制器的光纤放大器，通过监控和控制掺铒光纤放大器（EDFA）来轻松测量和确定一个pa RAMeter。 构成：配备有增益平坦度监视和控制器的光纤放大器包括光纤，泵送装置，输入装置，输出装置，用于获得具有各种波长的探测光束的装置，用于放大探测光束的装置 ，差分装置和控制器。 光纤传输放大的光信号。 泵送装置连接到光纤。 输入装置接收多波长信号。 输出装置接收放大的光信号。 用于获得探索光束的装置获得具有各种波长的探测光束。 放大器放大探测光束。 差异装置区分探索光束。 控制器提供不同的量作为泵送装置的缓冲器。