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公开(公告)号：KR1020010062965A
公开(公告)日：2001-07-09
申请号：KR1019990059750
申请日：1999-12-21
IPC: H04B10/2507 , H04B10/2537
CPC classification number: H04B10/2537
Abstract: PURPOSE: An SBS(Stimulated Brillouin Scattering) suppressing apparatus is provided to increase a threshold strength causing the SBS by stimulating a phase modulation effect of a signal channel using a cross phase modulation effect. CONSTITUTION: A plurality of first transmitters(1) have an appropriate wavelength interval used as a signal channel for information transfer. A plurality of second transmitters(2) are used as a monitor control channel of a WDM link system and have a frequency strength and a modulation frequency generating phase modulation. A multiplexer(3) multiplexes output signals of the first and second transmitters(1,2). The first optical amplifier(4) amplifies a signal multiplexed by the multiplexer(3). The second optical amplifier(6) amplifies a signal transferred through an optical fiber(5). A demultiplexer(7) demultiplexes the amplified signal to separate a signal for the signal channel and a signal for the monitor control channel. A plurality of first receivers(8) detect the signal for the signal channel, and a plurality of second receivers(9) detect the signal for the monitor control channel.
Abstract translation: 目的：提供SBS（受激布里渊散射）抑制装置，以通过使用交叉相位调制效应来刺激信号通道的相位调制效应来增加引起SBS的阈值强度。 构成：多个第一发射机（1）具有用作信息传送的信号信道的适当的波长间隔。 多个第二发射机（2）被用作WDM链路系统的监视控制信道，并且具有频率强度和调制频率产生相位调制。 复用器（3）复用第一和第二发射机（1,2）的输出信号。 第一光放大器（4）放大由多路复用器（3）复用的信号。 第二光放大器（6）放大通过光纤（5）传送的信号。 解复用器（7）对放大的信号进行解复用以分离用于信号信道的信号和用于监视器控制信道的信号。 多个第一接收器（8）检测信号信号的信号，并且多个第二接收器（9）检测用于监视控制信道的信号。
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公开(公告)号：KR100407825B1
公开(公告)日：2003-12-01
申请号：KR1020020009739
申请日：2002-02-23
Applicant: 한국전자통신연구원
IPC: G02B6/00
CPC classification number: H01S3/302 , H01S3/06725 , H01S3/06758 , H01S3/094011 , H01S3/094096 , H01S3/1608 , H01S3/2375 , H01S2301/04
Abstract: A low-noise optical fiber amplifier for performing a long-distance optical transmission in a wavelength division multiplexing optical transmission apparatus is provided. This amplifier includes a first optical fiber amplifier having a pre-stage optical fiber, and a first coupler for supplying pump light to the pre-stage optical fiber; a dispersion compensating Raman amplifier (DCRA) connected to the first optical fiber amplifier and having a dispersion compensating optical fiber (DCF) that compensates for the dispersion accumulated in an optical line and generates a Raman gain, and a second coupler for supplying Raman pump light onto the DCF; and a second optical fiber amplifier connected to the DCRA, and including a post-stage optical fiber and a third coupler for supplying pump light onto the post-stage optical fiber. Accordingly, this optical fiber amplifier is used for terrestrial WDM optical transmission, and thus has remarkably low noise figure compared to the existing optical amplifiers. For this reason, the optical fiber amplifier is available in long-distance transmission, and can be used in optical networks.
Abstract translation: 提供一种用于在波分复用光传输设备中执行长距离光传输的低噪声光纤放大器。 该放大器包括具有前级光纤的第一光纤放大器和用于将泵浦光提供给前级光纤的第一耦合器; 色散补偿拉曼放大器（DCRA），连接到第一光纤放大器并且具有色散补偿光纤（DCF），该色散补偿光纤补偿光线中累积的色散并产生拉曼增益;以及第二耦合器，用于提供拉曼泵浦光 到DCF上; 以及连接到DCRA的第二光纤放大器，并且包括后级光纤和用于将泵浦光提供到后级光纤上的第三耦合器。 因此，该光纤放大器用于地面WDM光传输，因此与现有的光放大器相比具有显着低的噪声系数。 为此，光纤放大器可用于长距离传输，并可用于光网络。
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Patent Agency Ranking
公开(公告)号：KR1020030070272A
公开(公告)日：2003-08-30
申请号：KR1020020009739
申请日：2002-02-23
Applicant: 한국전자통신연구원
IPC: G02B6/00
CPC classification number: H01S3/302 , H01S3/06725 , H01S3/06758 , H01S3/094011 , H01S3/094096 , H01S3/1608 , H01S3/2375 , H01S2301/04
Abstract: PURPOSE: A low noise dispersion compensating hybrid type optical fiber amplifier is provided to reduce largely the noise by coupling a DCRA(Dispersion Compensating Raman Amplifier) to an EDFA(Erbium Doped Fiber Amplifier) and installing an EDFA of short length at a front end thereof. CONSTITUTION: A low noise dispersion compensating hybrid type optical fiber amplifier includes the first optical fiber amplifier, a DCRA(12), and the second optical fiber amplifier. The first optical fiber amplifier includes a front end fiber(11) and the first coupler(114) for supplying the pumping light to the front end fiber. The DCRA is connected to the first optical fiber amplifier. The DCRA includes a DCF(Dispersion Compensating Fiber)(122) for generating a Raman gain and the second coupler(128) for supplying the Raman pumping light to the DCF. The second optical fiber amplifier is connected to the DCRA. The second optical fiber amplifier includes the third coupler for supplying the pumping light to a rear end fiber.
Abstract translation: 目的：提供一种低噪声色散补偿混合型光纤放大器，通过将DCRA（色散补偿拉曼放大器）耦合到EDFA（掺铒光纤放大器）并在其前端安装短长度的EDFA来大大减少噪声 。 构成：低噪声色散补偿混合型光纤放大器包括第一光纤放大器，DCRA（12）和第二光纤放大器。 第一光纤放大器包括用于向前端光纤提供泵浦光的前端光纤（11）和第一耦合器（114）。 DCRA连接到第一个光纤放大器。 DCRA包括用于产生拉曼增益的DCF（色散补偿光纤）（122）和用于向DCF提供拉曼泵浦光的第二耦合器（128）。 第二个光纤放大器连接到DCRA。 第二光纤放大器包括用于向后端光纤提供泵浦光的第三耦合器。
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公开(公告)号：KR100381007B1
公开(公告)日：2003-04-26
申请号：KR1020000082202
申请日：2000-12-26
IPC: G01J3/28
Abstract: PURPOSE: An optical spectrometer and optical detection method is provided to reduce cost and simplify the configuration of optical spectrometer by reducing the number of optical elements. CONSTITUTION: An optical spectrometer comprises an acoustic wave generating unit for generating wavelength of a specific frequency; an acoustic transducer unit(21) for applying the acoustic wave generated from the acoustic wave generating unit to an optical fiber; and an optical detection unit(23) for detecting the light emitted through the optical fiber by the acoustic wave applied to the optical fiber by the acoustic transducer unit. An optical detection method comprises a first step of generating wavelength of a specific frequency; a second step of applying the acoustic wave generated in the first step to an optical fiber; and a third step of detecting the light emitted through the optical fiber by the acoustic wave applied in the second step.
Abstract translation: 目的：提供光谱仪和光学检测方法，通过减少光学元件的数量来降低成本并简化光谱仪的配置。 构成：一种光谱仪包括：用于产生特定频率的波长的声波发生单元; 声波换能器单元（21），用于将从声波发生单元产生的声波施加到光纤; 以及光学检测单元（23），用于检测通过由声学换能器单元施加到光纤的声波通过光纤发射的光。 一种光学检测方法包括：产生特定频率的波长的第一步骤; 第二步骤，将在第一步骤中产生的声波施加到光纤; 以及第三步骤，检测通过在第二步骤中施加的声波而通过光纤发射的光。
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公开(公告)号：KR1020020039447A
公开(公告)日：2002-05-27
申请号：KR1020000069263
申请日：2000-11-21
IPC: G02B6/38
CPC classification number: H04B10/2916 , H01S3/06754 , H01S3/302 , H04B10/2525
Abstract: PURPOSE: A dispersion compensating Raman amplifier(DCRA) using a depolarizer is provided, which obtains a stable amplification signal by using the depolarizer to remove a polarization of a pump light, and a hybrid fiber amplifier using the same is provided, which increases an efficiency by combining the dispersion compensating Raman amplifier with an EDFA(Erbium Doped Fiber Amplifier). CONSTITUTION: According to the hybrid fiber amplifier using a dispersion compensating Raman amplifier(DCRA)(110), a dispersion compensating Raman amplification unit performs a dispersion compensating amplification of an incident light signal by making a Raman pump light, whose polarization is removed using a depolarizer, be incident in a reverse direction. And a fiber amplifier unit(120) receives the light signal amplified through the above dispersion compensating Raman amplification unit and then amplifies it again. The hybrid fiber amplifier further includes a density inversion improving unit to increase a front density inversion of the dispersion compensating Raman amplification unit.
Abstract translation: 目的：提供使用消偏器的色散补偿拉曼放大器（DCRA），通过使用去偏振器去除泵浦光的偏振，获得稳定的放大信号，并提供使用其的混合光纤放大器，从而提高效率 通过组合色散补偿拉曼放大器与EDFA（掺铒光纤放大器）。 构成：根据使用色散补偿拉曼放大器（DCRA）（110）的混合光纤放大器，色散补偿拉曼放大单元通过制作拉曼泵浦光进行入射光信号的色散补偿放大，其偏振使用 去极化反应方向相反。 并且光纤放大器单元（120）接收通过上述色散补偿拉曼放大单元放大的光信号，然后再次放大。 混合光纤放大器还包括密度反演改善单元，用于增加色散补偿拉曼放大单元的正面密度反转。
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公开(公告)号：KR100319781B1
公开(公告)日：2002-01-09
申请号：KR1019990055888
申请日：1999-12-08
IPC: H01S3/067
Abstract: 본발명은하나의브릴루앙어븀광섬유레이저시스템에서 10 ㎓및 20 ㎓의이중간격다파장광을출력하는브릴루앙어븀광섬유레이저에관한것으로, 광섬유사냑거울을내장한광섬유레이저에단일파장의유도브릴루앙산란펌프광을입사하여 10 ㎓간격및 20 ㎓간격의다파장광원을발생시킬수 있는다파장브릴루앙어븀광섬유레이저를구성하는데특징이있다. 본발명에따른다파장브릴루앙어븀광섬유레이저는, 유도브릴루앙산란매질역할의분산천이광섬유와 50/50 광섬유방향성결합기로구성된사냑거울에, 이와함께레이저공진기를구성하는제1 거울과제2 거울을연결하여, 사냑거울과제1 거울로이루어지는제1 레이저공진기및 사냑거울과제2 거울로이루어지는제2 레이저공진기가구성된다.
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公开(公告)号：KR100160582B1
公开(公告)日：1999-02-01
申请号：KR1019950047434
申请日：1995-12-07
Applicant: 한국전자통신연구원
IPC: H01S3/00
CPC classification number: H01S3/067 , G02F1/3519
Abstract: 본 발명은 광섬유 레이저에 관한 것으로 특히, 사냑(Sagnac) 루프 거울과 패러데이 회전 거울을 이용하여 편광에 매우 안정하고, 큰 에너지를 갖는 초단 펄스를 생성할 수 있는 광섬유 레이저에 관한 것이다.
본 발명은 광펌핑 레이저 다이오드; 이득매질 첨가 광섬유; 파장분할 광섬유 결합기; 위한 분산 천이 광섬유; 및 제1편광조절기가 루프 형으로 결합된 비선형 증폭 루프 거울: 제2편광조절기; 및 진행되는 광파의 편광면을 회전시키는 패러데이 회전 거울로 구성되는 선형 거울: 및 상기 비선형 증폭 루프 거울과 상기 선형 거울 사이에 연결되는 광섬유 방향성 결합기로 구성되는 것을 특징으로 한다.
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