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公开(公告)号：KR100811884B1
公开(公告)日：2008-03-10
申请号：KR1020060084841
申请日：2006-09-04
Applicant: 한국전자통신연구원
CPC classification number: H04L7/027 , H01L23/66 , H01L2924/0002 , H04L7/0087 , H01L2924/00
Abstract: 본 발명은 광 전송 시스템의 개방형 클럭 추출 장치에 관한 것으로서, 입력된 데이터 신호를 두 개의 신호로 분기하여 출력하는 전력 분배기 블록; 상기 전력 분배기 블록으로부터 출력된 데이터 신호에 포함된 제1 클럭 주파수 성분을 추출하는 제1 대역 통과 필터 블록; 상기 전력 분배기 블록으로부터 출력된 데이터 신호에 포함된 제2 클럭 주파수 성분을 추출하는 제2 대역 통과 필터 블록; 상기 제1 대역 통과 필터 블록에서 추출된 제1 클럭 주파수 성분을 증폭하는 제1 클럭 증폭 블록; 및 상기 제2 대역 통과 필터 블록에서 추출된 제2 클럭 주파수 성분을 증폭하는 제2 클럭 증폭 블록을 포함하여, 서로 다른 전송 속도의 데이터로부터 각각의 전송 속도에 해당하는 클럭 신호를 추출할 수 있는 것이다.
광 전송 시스템, 개방형 클럭 추출 장치, 클럭 복원 회로, 수동형 필터-
公开(公告)号：KR1020070113073A
公开(公告)日：2007-11-28
申请号：KR1020060084841
申请日：2006-09-04
Applicant: 한국전자통신연구원
CPC classification number: H04L7/027 , H01L23/66 , H01L2924/0002 , H04L7/0087 , H01L2924/00
Abstract: A multi-mode open type clock extracting device is provided to restore clock signals suitable for each transmission speed from data signals having different transmission speeds, therefore unnecessary to exchange a band pass filter block. A power divider block(420) branches an inputted data signal into two signals to output the branched signals. The first band pass filter block(430) extracts the first clock frequency component included in the outputted data signals. The second band pass filter block(450) extracts the second clock frequency component included in the outputted data signal. The first clock amplification block(440) amplifies the extracted first clock frequency component. The second clock amplification block(460) amplifies the extracted second clock frequency component.
Abstract translation: 提供了一种多模式开放式时钟提取装置，用于从具有不同传输速度的数据信号恢复适合于每个传输速度的时钟信号，因此不需要更换带通滤波器模块。 功率分配器块（420）将输入的数据信号分支为两个信号以输出分支信号。 第一带通滤波器块（430）提取包括在输出的数据信号中的第一时钟频率分量。 第二带通滤波器块（450）提取包括在输出的数据信号中的第二时钟频率分量。 第一时钟放大块（440）放大所提取的第一时钟频率分量。 第二时钟放大块（460）放大所提取的第二时钟频率分量。
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公开(公告)号：KR100714102B1
公开(公告)日：2007-05-02
申请号：KR1020050085196
申请日：2005-09-13
Applicant: 한국전자통신연구원
CPC classification number: H01S3/06754 , H01S3/06766 , H01S3/094011 , H01S3/10015 , H01S3/1301 , H01S3/1608 , H01S2301/04 , H04B10/296 , H04J14/0221
Abstract: 본 발명은 채널 출력 평탄화 기능을 가지는 광증폭 장치에 관한 것으로, 광신호를 증폭하는 광증폭기; 상기 광증폭기의 전방향과 후방향에서 상기 광신호를 펌핑하는 펌프부; 상기 광증폭기의 입력단으로 입력될 입력 광신호 중 일부에서 복수개의 특정 채널들을 선택하고, 상기 선택된 특정 채널들 각각에 대한 입력 광신호를 전기신호로 검출하는 제 1 검출부; 상기 광증폭기의 출력단에서 출력되는 출력 광신호 중 일부에서 상기 제 1 검출부에서 선택되는 채널들과 같은 복수개의 특정 채널들을 선택하고, 상기 선택된 특정 채널들 각각에 대한 출력 광신호를 전기신호로 검출하는 제 2 검출부; 및 상기 제 1 검출부 및 제 2 검출부에서 검출된 각각의 특정 채널들에 대한 전기신호를 입력받아 상기 각각의 특정 채널들에 대한 광신호 이득의 변화를 판단하고, 상기 광신호 이득 변화에 따라 이를 없애도록 상기 펌프부로 입력되는 인가 전류를 제어하는 제어부;로 구성되어, 자동 이득 제어, 자동 출력 광파워 레벨 제어 및 WDM 출력 평탄도를 유지할 수 있는 광증폭 장치를 제공할 수 있다.
Abstract translation: 本发明涉及一种具有信道输出平坦化功能的光放大装置，包括：用于放大光信号的光放大器; 泵浦单元，用于在光学放大器的前向和后向泵浦光信号; 第一检测器，用于从输入光信号的一部分中选择多个特定信道输入到光放大器的输入端，并检测每个选择的特定信道的输入光信号作为电信号; 从光放大器的输出端输出的一部分输出光信号中选择多个特定信道，例如从第一检测单元选择的信道，并且检测每个选择的特定信道的输出光信号作为电信号 第二个检测器; 并且接收由第一检测器和第二检测器检测的每个特定通道的电信号以确定每个特定通道的光信号增益的变化， 以及控制单元，用于控制输入到泵单元的施加电流以维持自动增益控制，自动输出光功率电平控制和WDM输出平坦度。
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公开(公告)号：KR100701147B1
公开(公告)日：2007-03-28
申请号：KR1020050102483
申请日：2005-10-28
Applicant: 한국전자통신연구원
IPC: G02B6/00 , H04B10/2507 , H04B10/25
CPC classification number: G02B6/12007 , G02B6/266 , G02B2006/12164 , H04B10/2507
Abstract: A dispersion compensation device and method for an optical communication system are provided to compensate dispersion by receiving a differential signal of a differential amplification unit or producing double output by using input and output terminals of a non-adaptive linear equalizer. A device for compensating dispersion of an optical signal by an electrical signal equalization method is composed of: a first transmission line(430) of the first length; a second transmission line(440) of the second length; a third transmission line(450) of the third length; a first branch unit(460) positioned at one end of the first and second transmission lines to branch off a signal; a first joining unit positioned on the other end of the first and second transmission lines to join the branched signals; a fourth transmission line(475) connected with the first joining unit; and a second joining unit disposed between one end of the third transmission line and the fourth transmission line to join the joined signal and the signal input to the third transmission line.
Abstract translation: 提供了一种用于光通信系统的色散补偿装置和方法，用于通过接收差分放大单元的差分信号或通过使用非自适应线性均衡器的输入和输出端产生双倍输出来补偿色散。 用于通过电信号均衡方法补偿光信号的色散的装置包括：第一长度的第一传输线（430） 第二长度的第二传输线（440）; 第三长度的第三传输线（450）; 位于所述第一和第二传输线的一端以分支信号的第一分支单元（460）; 位于所述第一和第二传输线的另一端上以连接所述分支信号的第一接合单元; 与第一接合单元连接的第四传输线（475）; 以及第二接合单元，设置在第三传输线的一端和第四传输线之间，以连接接合信号和输入到第三传输线的信号。
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公开(公告)号：KR100687753B1
公开(公告)日：2007-02-27
申请号：KR1020050098692
申请日：2005-10-19
Applicant: 한국전자통신연구원
IPC: H04B10/00 , H04B10/508
Abstract: An apparatus and a method for generating CS-RZ optical signals are provided to enable a dual electrode optical modulator to generate the CS-RZ signal by optically converting the first RZ signal and the second RZ signal to which a bias voltage is applied, thereby reducing latent costs by using a single optical modulator, and having a strong property against dispersion. An apparatus for generating CS-RZ(Carrier Suppressed-Returned to Zero) optical signals comprises the followings: a classifying unit(600) which classifies input signals into two NRZ(Non-Return-Zero) input signals having the same transmission speed; the first signal converting unit(610) which performs operation for one of the classified NRZ input signals and a clock having the transmission speed to convert the input signal into the first RZ(Return-to-Zero) signal; the second signal converting unit(611); a phase control unit(640); a bias unit(650); and a dual electrode optical modulator(660) which optically converts the first RZ signal and the second RZ signal to which a bias voltage is applied into the CS-RZ signal.
Abstract translation: 提供用于生成CS-RZ光信号的设备和方法，以使得双电极光调制器能够通过对施加偏压的第一RZ信号和第二RZ信号进行光学转换来生成CS-RZ信号，由此减少 通过使用单个光调制器的潜在成本，并具有强大的分散性能。 一种生成CS-RZ（载波抑制 - 归零）光信号的装置，包括：分类单元（600），将输入信号分类为具有相同传输速度的两个NRZ（非归零）输入信号; 对分类的NRZ输入信号中的一个执行操作的第一信号转换单元（610）和具有将输入信号转换为第一RZ（归零）信号的传输速度的时钟; 第二信号转换单元（611）; 相位控制单元（640）; 偏置单元（650）; 和双电极光调制器（660），其将施加了偏置电压的第一RZ信号和第二RZ信号光转换为CS-RZ信号。
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Patent Agency Ranking
公开(公告)号：KR100687752B1
公开(公告)日：2007-02-27
申请号：KR1020050096948
申请日：2005-10-14
Applicant: 한국전자통신연구원
Abstract: A method and an apparatus for optical clock signal extraction are provided to enable a bi-directional amplifier to amplify selected frequency components and repeatedly amplify frequency components reflected from the reflector and enable an FPF to obtain the frequency components, of which noise components are removed, and extract a clock signal on the basis of the obtained frequency components. An apparatus for optical clock signal extraction(200) comprises the followings: a reflector(260); a bi-directional amplifier(250) which amplifies the frequency components of inputted optical signals and inputs the amplified input optical signals to the reflector(260), and repeatedly amplifies frequency components reflected from the reflector(260); a PBS(Polarization Beam Splitter)(230); an FPF(Fabry-Perot Filter)(240) which receives predetermined polarization components split by the PBS(230) and selects frequency components for clock signal extraction, and inputs the selected frequency components to the bi-directional amplifier(250), and receives the frequency components repeatedly amplified by the bi-directional amplifier(250), and removes noise components; and a PD(Photo Detector)(270).
Abstract translation: 提供了一种用于光学时钟信号提取的方法和设备，以使得双向放大器能够放大选择的频率分量并且重复放大从反射器反射的频率分量并且使得FPF能够获得噪声分量被去除的频率分量， 并基于所获得的频率分量提取时钟信号。 一种光时钟信号提取装置（200），包括：反射器（260）; 双向放大器（250），其放大输入的光信号的频率分量，并将放大的输入光信号输入到反射器（260），并且重复放大从反射器（260）反射的频率分量; PBS（偏振分束器）（230）; 接收由PBS（230）分离的预定偏振分量并且选择用于时钟信号提取的频率分量的FPF（法布里 - 珀罗滤波器）（240），并且将选择的频率分量输入到双向放大器（250），并且接收 由双向放大器（250）重复放大的频率分量，并去除噪声分量; 和PD（光电检测器）（270）。
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公开(公告)号：KR1020060127660A
公开(公告)日：2006-12-13
申请号：KR1020050048904
申请日：2005-06-08
Applicant: 한국전자통신연구원
CPC classification number: H04L7/0075
Abstract: A clock extracting apparatus is provided to increase a tolerance range of a difference between sizes of two frequency components by changing maximum and minimum values of a spectrum by controlling temperature or an amount of current applied to an FP(Fabry-Perot) LD(Laser Diode). A circulator(31) changes the direction of an input optical signal. A current and temperature controller(32) controls an amount of applied current. An FP LD(33) selects two frequency components, having a different size within a spectrum of the input optical signal, respectively, applies appropriate current in consideration of a size difference between the two frequency components to make the two frequency components have the same size, and extracts a clock signal by beating the two frequency components.
Abstract translation: 提供时钟提取装置，通过控制施加到FP（法布里 - 珀罗）的LD（激光二极管）的温度或电流量来改变频谱的最大和最小值来增加两个频率分量的大小之间的差异的公差范围 ）。 循环器（31）改变输入光信号的方向。 电流和温度控制器（32）控制施加的电流量。 FP LD（33）分别选择在输入光信号的频谱内具有不同尺寸的两个频率分量，考虑到两个频率分量之间的尺寸差来应用适当的电流，以使两个频率分量具有相同的尺寸 ，并通过拍摄两个频率分量来提取时钟信号。
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公开(公告)号：KR100656377B1
公开(公告)日：2006-12-11
申请号：KR1020050124051
申请日：2005-12-15
Applicant: 한국전자통신연구원
Abstract: An apparatus and a method for verifying multiple-channel data are provided to verify each data channel and skew compensating channels, thereby previously predicting problems which may occur in a process of transceiving the multi-channel data. An apparatus(300) for verifying multiple-channel data comprises the followings: a receiver(310) which receives N channels generated on the basis of an inputted signal and a skew compensating channel generated by respectively extracting predetermined data bits in order from the N channels; and a skew detector(320) for detecting whether the skew compensating channel received by the receiver(310) is consistent with a skew compensating channel which is previously generated on the basis of a test signal and then stored or predicted on the basis of the received skew compensating channel.
Abstract translation: 提供了用于验证多信道数据的装置和方法，以验证每个数据信道和时滞补偿信道，从而预先预测在收发多信道数据的过程中可能发生的问题。 一种用于验证多信道数据的设备（300），包括：接收器（310），其接收基于输入信号生成的N个信道和通过从N个信道按顺序分别提取预定数据比特而生成的时滞补偿信道 ; 和偏斜检测器（320），用于检测接收机（310）接收到的偏斜补偿信道是否与先前基于测试信号生成的偏斜补偿信道一致，然后基于接收到的偏差补偿信道进行存储或预测 偏移补偿信道。
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公开(公告)号：KR100655663B1
公开(公告)日：2006-12-11
申请号：KR1020050075232
申请日：2005-08-17
Applicant: 한국전자통신연구원
Abstract: A frequency extraction apparatus and a signal extraction system using the same are provided to extract a frequency component of desired band and amplitude accurately by using a FP LD(Fabry-Perot Laser Diode). In a frequency extraction apparatus, a circulator(22,26) changes an output direction of an inputted signal. A frequency selection unit(23,27) extracts a desired frequency component of an input signal transferred from the rotation unit, and then transfers the extracted frequency component to the rotation unit. A control unit(24,28) provides a control signal to change a wavelength and amplitude of the frequency of an output mode of a frequency control unit(25,29). The frequency control unit controls the frequency wavelength of the output mode according to the control signal from the control unit in order to coincide with the frequency transferred through the rotation unit, and controls the amplitude of the corresponding frequency component, and then outputs the frequency through the rotation unit.
Abstract translation: 提供了一种频率提取设备和使用该设备的信号提取系统，以通过使用FP LD（法布里 - 珀罗激光二极管）精确地提取期望频带和振幅的频率分量。 在频率提取装置中，循环器（22,26）改变输入信号的输出方向。 频率选择单元（23,27）提取从旋转单元传送的输入信号的期望频率分量，然后将提取的频率分量传送到旋转单元。 控制单元（24,28）提供控制信号以改变频率控制单元（25,29）的输出模式的频率的波长和幅度。 频率控制单元根据来自控制单元的控制信号来控制输出模式的频率波长，以便与通过旋转单元传送的频率一致，并且控制对应的频率分量的幅度，然后通过 旋转单元。
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公开(公告)号：KR100646746B1
公开(公告)日：2006-11-23
申请号：KR1020040094272
申请日：2004-11-17
Applicant: 한국전자통신연구원
CPC classification number: H04J3/1617 , H04L69/18
Abstract: Provided are a multi-protocol signal processing apparatus for a next-generation Synchronous Digital Hierarchy (NG-SDH) transponder, and a method thereof. The multi-protocol signal processing apparatus for an NG-SDH transponder, which includes: a sub-signal processing unit for classifying and processing multi-protocol sub-signals based on kinds; an interfacing unit for making interface between the sub-signal processing unit and an optical signal generating unit the same for the multi-protocol sub-signals to use the multi-protocol sub-signals in Synchronous Digital Hierarchy (SDH) flexibly with no regard to the kinds of the multi-protocol sub-signals; and the optical signal generating unit for generating SDH optical signals by aggregating the multi-protocol sub-signals having a predetermined capacity which are transmitted through the interfacing unit into SDH signals, performing framing, and performing optical/electrical (O/E) conversion on the SDH signals in an optical module.
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