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公开(公告)号：KR1020040106904A
公开(公告)日：2004-12-18
申请号：KR1020030079906
申请日：2003-11-12
Applicant: 한국전자통신연구원
IPC: H04B10/291
CPC classification number: H01S5/50 , H01S5/005 , H01S5/0064 , H01S5/0078 , H01S5/5045 , H01S5/5072
Abstract: PURPOSE: A gain-clamped optical amplifier is provided to realize a regular gain character without regard to a change in strength of input signal light. CONSTITUTION: An optical fiber bragg grating(12) is installed at an input optical fiber(11). An isolator(14) is installed at an output optical fiber(13). An optical amplifier(15) is placed between the optical fiber bragg grating(12) and the isolator(14) for amplifying an input optical signal or output optical signal. A spontaneously emitted light of the optical amplifier(15) emitted to the input optical fiber(11) and the output optical fiber(13) is reflected to the optical amplifier(15) for amplifying the reflected light.
Abstract translation: 目的：提供增益钳位光放大器以实现常规增益字符，而不考虑输入信号光强度的变化。 构成：光纤布拉格光栅（12）安装在输入光纤（11）处。 隔离器（14）安装在输出光纤（13）处。 光放大器（15）放置在光纤布拉格光栅（12）和隔离器（14）之间，用于放大输入光信号或输出光信号。 发射到输入光纤（11）和输出光纤（13）的光放大器（15）的自发发射的光被反射到用于放大反射光的光放大器（15）。
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公开(公告)号：KR100462470B1
公开(公告)日：2004-12-17
申请号：KR1020020031591
申请日：2002-06-05
Applicant: 한국전자통신연구원
IPC: G02B6/293
CPC classification number: G02B6/12019 , G02B2006/121 , G02F1/065 , G02F2001/212 , G02F2203/055 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0032 , H04Q2011/0035
Abstract: A wavelength selector to be used in WDM networks is provided. The wavelength selector is composed of a circulator, an arrayed waveguide grating (AWG), which is used for wavelength demultiplexing and multiplexing part, and an electro-optical (EO) switching part. The input light after the circulator is demultiplexed through the AWG part and each channel of the demultiplexed lights is modulated and reflected through the EO switching part which is formed as Michelson type interferometer with mirror parts returning the light to the AWG. The modulated and reflected light is multiplexed through the AWG and the direction is changed to the output through the circulator.
Abstract translation: 提供了用于WDM网络的波长选择器。 波长选择器由循环器，用于波长解复用部分的阵列波导光栅（AWG）和电光（EO）切换部分组成。 循环器之后的输入光通过AWG部分被解复用，并且解复用光的每个通道被调制并且通过EO开关部件反射，EO开关部件被形成为迈克尔逊型干涉仪，其中镜子部件将光返回到AWG。 调制后的和反射的光通过AWG进行复用，方向通过循环器转换为输出。
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公开(公告)号：KR100422372B1
公开(公告)日：2004-03-10
申请号：KR1020010017918
申请日：2001-04-04
Applicant: 한국전자통신연구원
IPC: H04B10/2581
CPC classification number: G02B6/305 , G02B2006/12173 , G02B2006/12176 , G02B2006/12195
Abstract: The present invention relates to a multi-channel wavelength division multiplexer/demultiplexer capable of efficiently coupling or separating wavelength multiplexed optical signals. The multi-channel wavelength division multiplexer/demultiplexer according to the present invention comprises a band splitting means for splitting the band of wavelength multiplexed optical signals (lambd1~lambdn) into M bands, a demultiplexing means for separating each band split by the band splitting means into a plurality of single wavelength channels, and a multiplexing means for coupling the single wavelength channels separated by the demultiplexing means. Therefore, the present invention can significantly increase the number of available wavelength channels while minimizing optical loss of wavelength channels.
Abstract translation: 本发明涉及能够高效地耦合或分离波长复用光信号的多信道波分复用器/解复用器。 根据本发明的多信道波分复用器/信号分离器包括一个频带分割装置，用于将波长复用光信号（λdd1〜λdn）的频带分成M个频带;一个解复用装置，用于分离由频带分割装置分割的每个频带 分成多个单波长信道，以及多路复用装置，用于耦合由多路分解装置分离的单个波长信道。 因此，本发明可以显着增加可用波长信道的数量，同时最小化波长信道的光损耗。
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公开(公告)号：KR1020030015571A
公开(公告)日：2003-02-25
申请号：KR1020010049358
申请日：2001-08-16
Applicant: 한국전자통신연구원
IPC: G02B6/00
CPC classification number: H01S3/06758 , H01S3/0677 , H01S3/094015 , H01S3/094023
Abstract: PURPOSE: A two-stage long wavelength band erbium-doped fiber amplifier device is provided, which improves amplification performance by obtaining strong amplified spontaneous emission(ASE) using a reflective optical fiber amplifier as one-step amplifier. CONSTITUTION: According to the two-stage long wavelength band erbium-doped fiber amplifier device, the first amplification unit amplifies forward amplified spontaneous emission(ASE) again by a gain medium by reflecting the forward amplified spontaneous emission as to the forward amplified spontaneous emission and backward amplified spontaneous emission generated by a pump light source projected through a wavelength division multiplexing(WDM). And the second amplification unit receives the forward amplified spontaneous emission and the backward amplified spontaneous emission amplified in the first amplification unit through an optical circulator(100) and then amplifies a long wavelength band signal light using them as a pumping light source.
Abstract translation: 目的：提供两级长波长带掺铒光纤放大器，通过使用反射光纤放大器作为一步放大器获得强放大自发辐射（ASE）来提高放大性能。 构成：根据两级长波长带掺铒光纤放大器装置，第一放大单元通过增益介质再次放大正向放大自发辐射（ASE），反映正向放大自发发射与正向放大自发发射， 由通过波分复用（WDM）投影的泵浦光源产生的向后放大的自发辐射。 并且第二放大单元通过光环行器（100）接收在第一放大单元中放大的正向放大自发发射和反向放大自发辐射，然后使用它们作为泵浦光源放大长波长带信号光。
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公开(公告)号：KR100363849B1
公开(公告)日：2002-12-06
申请号：KR1019990030313
申请日：1999-07-26
Applicant: 한국전자통신연구원
IPC: G02B6/42
Abstract: 본발명은광통신시스템에서핵심적인기능을수행하는색분산보상기에관한것으로, 특히열-전기적으로폴링된광섬유나실리카도파로를사용하여위상공액파를발생시키고이것을다시전송하는중간파장반전법을사용하는폴드광섬유를이용한색분산보상기에관한것이다. 본발명은광신호를전송하기위한단일모드광섬유; 펌프광을출력하기위한펌프광원; 상기단일모드광섬유를통해전송된광신호와펌프광원으로부터공급되는광을결합하기위한광섬유결합기; 상기광섬유결합기를통해공급되는광을입력으로하여비선형상호작용을거쳐위상공액파를발생시키는폴드광섬유; 상기폴드광섬유에서발생된위상공액파에대한다른광을차단하는필터; 및상기필터를통해전송되는광을전송하기위한단일모드광섬유를포함하여구성된폴드광섬유를이용한색분산보상기를제공한다.
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Patent Agency Ranking
公开(公告)号：KR100353844B1
公开(公告)日：2002-09-28
申请号：KR1020000084565
申请日：2000-12-28
Applicant: 한국전자통신연구원
IPC: H04B10/07
Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야
본 발명은 시간-파장 변환에 의한 초고속 광신호의 아이 패턴(eye pattern) 측정 장치에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은, 선형 처핑(chirping)된 초연속 광원과 비선형 간섭계를 이용하여 입력 광펄스의 시간 파형을 파장 영역으로 변환하여 아이 패턴을 측정하는 아이 패턴 측정 장치를 제공하고자 함.
3. 발명의 해결방법의 요지
본 발명은, 시간-파장 변환에 의한 광신호의 아이 패턴 측정 장치에 있어서, 선형 처핑된 초연속 광원을 생성하기 위한 초연속 광원 생성 수단; 상기 초연속 광원 생성 수단에 의해 생성된 초연속 광원을, 입력받은 광펄스에 의해 비선형 간섭을 발생시키기 위한 비선형 간섭 수단; 및 상기 비선형 간섭 수단에 의해 발생한 초연속 광원에 대한 비선형 간섭의 결과를 이용해 광파장을 분석하여 아이 패턴을 측정하기 위한 광파장 분석 수단을 포함함.
4. 발명의 중요한 용도
본 발명은 광신호의 아이 패턴 측정 등에 이용됨.-
公开(公告)号：KR1020020055533A
公开(公告)日：2002-07-09
申请号：KR1020000084565
申请日：2000-12-28
Applicant: 한국전자통신연구원
IPC: H04B10/07
CPC classification number: H04B10/07957 , G01J3/45
Abstract: PURPOSE: An apparatus for measuring an eye pattern of a very high speed optical signal by a time-wavelength conversion is provided to convert a time waveform with an input optical pulse into a wavelength domain using a linear chirping super-succession optical source and a non-linear interferometer and measure the eye pattern. CONSTITUTION: A super-succession optical source unit(310) generates a linear chirping super-succession optical source. A non-linear interference unit(320) generates a non-linear interference about the super-succession optical source generated by the super-succession optical source unit(310) according to an inputted optical pulse(340). An optical wavelength analyzing unit(330) analyzes an optical wavelength using the result of the non-linear interference about the super-succession optical source and measures an eye pattern.
Abstract translation: 目的：提供一种用于通过时间波长转换来测量非常高速光信号的眼图的装置，用于使用线性啁啾超连续光源将非输入光脉冲的时间波形转换成波长域， 线性干涉仪并测量眼图。 构成：超连续光源单元（310）产生线性啁啾超连续光源。 非线性干扰单元（320）根据输入的光脉冲（340）产生由超连续光源单元（310）生成的超连续光源的非线性干扰。 光波长分析单元（330）使用关于超连续光源的非线性干扰的结果分析光波长并测量眼图。
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公开(公告)号：KR1020000037800A
公开(公告)日：2000-07-05
申请号：KR1019980052564
申请日：1998-12-02
Applicant: 한국전자통신연구원
IPC: H04J14/00
CPC classification number: H04B10/299 , H01S5/0657
Abstract: PURPOSE: An optical demultiplexer is provided to achieve the superior quality of the optical demultiplexer regardless the polarization by using an optic fiber having a high polarization mode distribution rate. CONSTITUTION: An optical demultiplexer has an input beam source consisting of a pump beam source(41a) and a signal beam source(41b). The input beam source is amplified by first and second beam amplifiers(51a,51b). First and second band pass filters(52a,52b) are provided to remove noise of the optical signal amplified by the first and second beam amplifiers(51a,51b). A 3dB optical fiber coupler(31) for outputting two optical signals are provided. The 3dB optical fiber coupler(31) combines output signals of the first and second band pass filters(52a,52b). An optical fiber(12) is provided to generate 4-optical wave signal. The 4-optical wave signal is demultiplexed by a band pass filter.
Abstract translation: 目的：提供光解复用器，通过使用具有高偏振模式分布速率的光纤，无论偏振如何，都能实现光解复用器的卓越品质。 构成：光解复用器具有由泵浦光源（41a）和信号光束源（41b）组成的输入光束源。 输入光束源由第一和第二光束放大器（51a，51b）放大。 提供第一和第二带通滤波器（52a，52b）以去除由第一和第二波束放大器（51a，51b）放大的光信号的噪声。 提供了用于输出两个光信号的3dB光纤耦合器（31）。 3dB光纤耦合器（31）组合第一和第二带通滤波器（52a，52b）的输出信号。 提供光纤（12）以产生4-光波信号。 4-光波信号被带通滤波器解复用。
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公开(公告)号：KR100258183B1
公开(公告)日：2000-06-01
申请号：KR1019970046101
申请日：1997-09-08
Applicant: 한국전자통신연구원
IPC: G02B5/20
CPC classification number: G02B6/2932 , G02B6/29322 , G02B6/29389
Abstract: PURPOSE: An optical filter is provided to compensate time delay among different channel signals with different wavelengths by connecting an optical fiber or optical waveguide from a half-wavelength plate to an optical circulator. CONSTITUTION: An optical circulator(21) has an input end and an output end connected through an optical fiber or optical waveguide. A number of Bragg lattices(22) are connected to the optical circulator through the optical fiber or optical waveguide. Each of the Bragg lattices(22) has a different wavelength selectivity from one another. An inter-signal delay compensation circuit has a polarized beam splitter(25) and a half-wavelength plate(26) connected at the opposite of the optical circulator(21). The optical fiber or optical waveguide from the half-wavelength plate(26) is connected to the optical circulator(21) again. Arbitrary wavelength distribution and independent wavelength adjustment are enabled.
Abstract translation: 目的：提供一种滤光器，通过将光纤或光波导从半波长板连接到光循环器来补偿具有不同波长的不同通道信号之间的时间延迟。 构成：光环行器（21）具有通过光纤或光波导连接的输入端和输出端。 多个布拉格晶格（22）通过光纤或光波导连接到光环行器。 每个布拉格晶格（22）彼此具有不同的波长选择性。 信号间延迟补偿电路具有连接在光循环器（21）的相反侧的偏振分束器（25）和半波长板（26）。 来自半波长板（26）的光纤或光波导再次连接到光循环器（21）。 允许任意波长分布和独立波长调整。
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公开(公告)号：KR100223033B1
公开(公告)日：1999-10-01
申请号：KR1019970009085
申请日：1997-03-18
Applicant: 한국전자통신연구원
IPC: H04B10/00 , H04B10/2581
Abstract: 본 발명은 파장 분할 다중 대용량 광통신에 있어서 여러 파장의 신호를 동시에 분리하는데 응용이 가능하고, 또한 집적화 할 수 있는 다파장 투과형 광 필터에 관한 것이다. 제안된 필터의 구조는 한 개의 사냑 루프(Sagnac loop)와 루프 안의 대칭적인 위치에 반사 파장이 서로 다른 여러 쌍의 브레그(Bragg) 격자들이 자리하고 있으며, 루프의 정 중앙에 위치한 격자는 한 개의 격자로 되어 있다. 이 구조는 여러 파장 채널을 동시에 투과시키면서도 선택하고자 하는 파장 채널의 증가에 따른 신호 광의 강도 감소가 없는 특징을 갖는다. 사냑 루프(Sagnac loop)에서 서로 반대로 진행한 광 신호의 위상을 조절하기 위해 루프 안에 열팽창 또는 인장 및 수축 기능이 추가되었다. 본 발명은 여러 파장을 사용하는 파장 분할 다중 광통신에 있어서 광원의 주파수 안정화(frequency stabilization)와 광 네트워크에서 다파장 채널 분리 소자 등으로 응용될 수 있다.
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