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    코드 가변 광섬유 어드레스 검출기
    61.
    发明公开
    코드 가변 광섬유 어드레스 검출기 失效
    代码可变光纤地址检测器

    公开(公告)号：KR1019960018625A

    公开(公告)日：1996-06-17

    申请号：KR1019940029927

    申请日：1994-11-15

    Applicant: 한국전자통신연구원

    Inventor： 신종덕 ,  전민용 ,  이일항 ,  박창수

    IPC: G02B6/00

    Abstract: 본 발명은 광섬유 패브리-페롯 간섭기들을 사용하여 구성되는 코드 가변 광섬유 어드레스 검출기에 관한 것이다.
    본 발명은 각 노드의 지정된 어드레스에 따라서 검출기의 구조를 달리해야 하는 종래의 투과형 광섬유 어드레스 검출기의 단점을 개선하기 위해, 광섬유 패브리-페롯 간섭기들을 사용하는 것에 의해 각 노드의 어드레스가 변화되더라고 변화원 어드레스에 따른 구조의 변환없이도 간섭기를 조정하여 코드를 선택할 수 있다.

    광섬유 레이저
    65.
    发明公开
    광섬유 레이저 失效
    光纤激光

    公开(公告)号：KR1020110066625A

    公开(公告)日：2011-06-17

    申请号：KR1020090123357

    申请日：2009-12-11

    Applicant: 한국전자통신연구원

    Inventor： 전민용 ,  박경현 ,  김남제 ,  임영안 ,  한상필 ,  백용순 ,  신재헌

    IPC: H01S3/067

    CPC classification number: H01S3/06791 ,  H01S1/02 ,  H01S3/06712 ,  H01S3/0675 ,  H01S3/1304 ,  H01S3/1608 ,  H01S3/1618 ,  H01S2302/02

    Abstract: PURPOSE: An optical fiber laser is provided to oscillate a laser beam which has two independent wavelengths using first and second resonators. CONSTITUTION: A light source(30) oscillate a laser beam. First and second resonators(10,20) resonate the laser beam with first and second wavelengths. A coupler(40) provides the laser beam oscillated from the light source to the first and second resonators. The coupler feeds the laser beams of the first and second wavelengths which are resonated in the first and second resonators respectively back to the light source.

    Abstract translation: 目的：提供光纤激光器来振荡具有使用第一和第二谐振器的两个独立波长的激光束。 构成：光源（30）振荡激光束。 第一和第二谐振器（10,20）使具有第一和第二波长的激光束共振。 耦合器（40）将从光源振荡的激光束提供给第一和第二谐振器。 耦合器将第一和第二谐振器中谐振的第一和第二波长的激光束分别馈送回光源。

    자기 발진 레이저 다이오드
    66.
    发明授权
    자기 발진 레이저 다이오드 有权
    自激激光二极管

    公开(公告)号：KR100818635B1

    公开(公告)日：2008-04-02

    申请号：KR1020070054885

    申请日：2007-06-05

    Applicant: 한국전자통신연구원

    Inventor： 박경현 ,  고현성 ,  임영안 ,  전민용 ,  심은덕 ,  김성복

    IPC: H01S3/0941

    CPC classification number: H01S3/09415 ,  H01S3/10053 ,  H01S3/1127 ,  H01S5/06258

    Abstract: A self oscillating laser diode is provided to develop a stable ultra short pulse laser by injecting an RF, and to develop an active ultra short pulse laser with a low cost by using a sub-harmonic RF locking structure. A self oscillating laser diode comprises a DFB(distributed feedback) sector(100), a gain sector(200), a phase adjusting sector(300), and an external RF inputting part(500). The DFB sector performs a role of a reflector. The gain sector is connected with the DFB sector, and an as-cleaved facet is formed in an end of the gain sector. The phase adjusting sector positioned between the DFB sector and the gain sector. The external RF inputting part injects an external RF signal to at least one sector of the DFB sector and the gain sector. The external RF inputting part is embodied by an impedance-matched module.

    Abstract translation: 提供了一种自激振荡激光二极管，通过注射RF来开发稳定的超短脉冲激光器，并通过使用次谐波RF锁定结构开发低成本的有源超短脉冲激光器。 自振荡激光二极管包括DFB（分布式反馈）扇区（100），增益扇区（200），相位调整扇区（300）和外部RF输入部分（500）。 DFB扇区执行反射器的作用。 增益扇区与DFB扇区连接，并且在增益扇区的末端形成一个切割面。 相位调整扇区位于DFB扇区和增益扇区之间。 外部RF输入部分将外部RF信号注入DFB扇区和增益扇区的至少一个扇区。 外部RF输入部分由阻抗匹配模块实现。

    반도체 광 증폭기를 이용한 파장 변환 및 클락 재생 장치및 방법
    67.
    发明公开
    반도체 광 증폭기를 이용한 파장 변환 및 클락 재생 장치및 방법 有权
    반도체광증폭기를이용한파장변환및클락재생장치및방반

    公开(公告)号：KR1020070034915A

    公开(公告)日：2007-03-29

    申请号：KR1020050119285

    申请日：2005-12-08

    Applicant: 한국전자통신연구원

    Inventor： 김동철 ,  전민용 ,  임영안 ,  심은덕 ,  박경현 ,  김성복

    IPC: G02B6/26

    CPC classification number: H04B10/299

    Abstract: Provided is an apparatus and method for simultaneous optical wavelength conversion and optical clock signal extraction using semiconductor optical amplifiers (SOAs). The apparatus includes: a wavelength converter receiving a pump beam having input information and a probe beam having a different wavelength from the pump beam, and outputting the pump beam with an overshoot shifted to a red wavelength and an undershoot shifted to a blue wavelength due to non-linear characteristics and self-phase modulation of semiconductor optical amplifiers (SOAs) and the probe beam delivered the input information from the pump beam; an optical divider dividing output paths of the probe beam to which the input information has been delivered and the pump beam having the overshoot and the undershoot; a converted-wavelength extractor filtering the probe beam received from the optical divider; and a clock data regenerator obtaining a pseudo return-to-zero (PRZ) signal from the pump beam received from the optical divider and extracting a clock signal from the PRZ signal. The apparatus and method can simultaneously perform wavelength conversion and optical clock signal extraction on an NRZ signal using an optical method, without converting the NRZ signal into an electrical signal.

    Abstract translation: 提供了一种使用半导体光放大器（SOA）同时进行光波长转换和光时钟信号提取的设备和方法。 该设备包括：波长转换器，接收具有输入信息和具有与泵浦光束不同的波长的探测光束的泵浦光束，并且输出泵浦光束，其中过冲转换为红色波长，并且下冲由于 非线性特性和半导体光放大器（SOA）的自相位调制，并且探测光束传送来自泵浦光束的输入信息; 光分配器，用于分配输入信息已被传送到的探测光束的输出路径和具有过冲和下冲的泵浦光束; 转换波长提取器，对从分光器接收的探测光束进行滤波; 以及时钟数据再生器，从来自光分配器的泵浦光束中获得伪归零（PRZ）信号，并从PRZ信号中提取时钟信号。 该设备和方法可以使用光学方法在NRZ信号上同时执行波长转换和光时钟信号提取，而无需将NRZ信号转换为电信号。

    평면 도파로형 광증폭기 스위치
    68.
    发明授权
    평면 도파로형 광증폭기 스위치 失效
    平面波导型放大器开关

    公开(公告)号：KR100363848B1

    公开(公告)日：2002-12-06

    申请号：KR1019990030308

    申请日：1999-07-26

    Applicant: 한국전자통신연구원

    Inventor： 김경헌 ,  최용규 ,  이학규 ,  전민용 ,  안준태 ,  임동성 ,  김호영 ,  장도일

    IPC: G02B26/08

    CPC classification number: G02F1/3132 ,  G02F1/225 ,  H01S5/4068 ,  H01S5/50

    Abstract: 본발명에서는광통신기술에사용되고있는기존의도파로형광 스위치가가지는광 손실과이로인한간편한구도의집적소자가곤란한부분을해결하고자, 형광발생재료를이용한광 도파로에파장분할다중광 커플러(WDM coupler)를통하여광 펌핑(optical pumping)을하여이 도파로를지나가는광신호를증폭함과동시에전기제어(electrical control) 또는광 제어(optical control)에의한광 도파로의굴절률변화(waveguide's refractive index change)를이용하여광 스위치기능을하는평면도파로형광 증폭기스위치(Planar waveguide-type optical amplifier switch)에관한것이다. 광도파로상에광 스위치및 광증폭이동시에일어나도록하는광 증폭기스위치구도는광 스위칭이되면서스위치되는광신호의광증폭이동시에일어나도록하여더욱실용적이고간편하게집적이가능한광 스위치소자를가능하게한다. 본도파로형광 증폭기스위치는기존에사용되고있는광 스위치들의대체효과가크고, 향후대용량광통신시스템의확보와더불어대용량광신호처리, 광교환, 광컴퓨터등에서의기술발전을유도하는효과가있다.

    모드 로킹 광섬유 레이저 공진 장치
    69.
    发明公开
    모드 로킹 광섬유 레이저 공진 장치 失效
    模式锁定光纤激光振荡器

    公开(公告)号：KR1020020053984A

    公开(公告)日：2002-07-06

    申请号：KR1020000082265

    申请日：2000-12-26

    Applicant: 한국전자통신연구원

    Inventor： 임동성 ,  안준태 ,  전민용 ,  최용규 ,  김경헌

    IPC: H04B10/2507 ,  H04B10/2537

    CPC classification number: H01S3/06791 ,  H01S3/08013 ,  H01S3/094003

    Abstract: PURPOSE: A mode locking optical fiber laser oscillating apparatus is provided to stabilize a laser oscillator on a real time basis by stabilizing a length of an optical fiber laser oscillator by feeding a frequency change as an error signal back to the laser oscillator by using the fact that a frequency transition value of a Brillouin signal is sensitive to a temperature. CONSTITUTION: A Brillouin pump(101) generates a Brillouin pump signal to generate a Brillouin signal. A single mode optical fiber(102) generates a Brilliouin stimulated scattering. A directional first optical fiber coupler(103) inserts the Brillouin pump signal into an oscillator. An optical circulator(104) outputs a returning Brillouin signal. A semiconductor laser(112) serves as an excitation pump optical source for an optical pump to an erbium addition optical fiber(111) for a mode locking optical fiber laser oscillation. The second optical fiber coupler(113) couples optical signals. A function generator(114) generates a signal. An optical modulator(115) makes an active mode locking through a signal inputted from the external function generator(114). The third optical fiber coupler(116) monitors a mode locked laser output. An optical isolator(117) proceeds an optical signal in one direction. An optical fiber PZT(121) is electrically and variably shrunken and expanded to stabilize a length of the oscillator. An optical receiver(122) receives the Brillouin signal. A frequency comparator(123) compares the Brillouin signal detected from the optical receiver(122) and the frequency of the signal generated from the function generator(114). A frequency-voltage converter(124) converts the signal output from the frequency comparator(123) into an electric signal. An electric amplifier(125) amplifies the electric signal converted by the frequency-voltage converter(124).

    Abstract translation: 目的：提供一种模式锁定光纤激光振荡装置，用于通过将频率变化作为误差信号馈送回激光振荡器来稳定光纤激光振荡器的长度来实时稳定激光振荡器，通过使用事实 布里渊信号的频率转换值对温度敏感。 构成：布里渊泵（101）产生布里渊泵浦信号以产生布里渊信号。 单模光纤（102）产生Brilliouin受激散射。 定向第一光纤耦合器（103）将布里渊泵浦信号插入振荡器。 光循环器（104）输出返回的布里渊信号。 半导体激光器（112）用作用于光锁定光纤激光器振荡的铒添加光纤（111）的光泵的激励泵浦光源。 第二光纤耦合器（113）耦合光信号。 函数发生器（114）产生信号。 光调制器（115）通过从外部功能发生器（114）输入的信号进行主动模式锁定。 第三光纤耦合器（116）监视模式锁定的激光输出。 光隔离器（117）沿一个方向进行光信号。 光纤PZT（121）电和可变地收缩和扩展以稳定振荡器的长度。 光接收器（122）接收布里渊信号。 频率比较器（123）比较从光接收器（122）检测的布里渊信号和从功能发生器（114）产生的信号的频率。 频率 - 电压转换器（124）将从频率比较器（123）输出的信号转换为电信号。 电放大器（125）放大由频率 - 电压转换器（124）转换的电信号。

    이중 파장 광섬유 레이저
    70.
    发明公开
    이중 파장 광섬유 레이저 失效
    双波长光纤激光器

    公开(公告)号：KR1020020050582A

    公开(公告)日：2002-06-27

    申请号：KR1020000079764

    申请日：2000-12-21

    Applicant: 한국전자통신연구원

    Inventor： 장도일 ,  전민용 ,  김경헌

    IPC: H01S3/067

    CPC classification number: H01S3/06754 ,  H01S3/0809 ,  H01S3/302

    Abstract: PURPOSE: A dual wavelength fiber laser is provided, which does not need an additional pump light source for dual wavelength laser operation, and solves the problems of an insertion loss and a coupling loss of a pump light source without using a Mach-Zehnder waveguide coupler. CONSTITUTION: The first and the second active optical fiber(36,37) cause an inductive scattering as to a pump light source(100), and a WDM(Wavelength Division Multiplexing) fiber coupler(33) inputs a wavelength of the pump light source and outputs laser oscillation wavelengths(lambda1,lambda2) by being connected with the first and the second active optical fibers. The first resonator unit(38) comprises the first active optical fiber and short period gratings(31a,31b,31c) of the first group and oscillates the first wavelength(lambda1). The second resonator unit(39) comprises the second active optical fiber and short period fiber gratings(32a,32b) of the second group. A long period fiber grating(35) has a high loss as to the first and the second wavelength, and is located between two resonator units, and removes an interference between two resonator units. And a pump light source reflector unit(34) reflects a pump light(Ip) to be re-incident on the first and the second active optical fiber by being connected to a laser output port of the WDM fiber coupler.

    Abstract translation: 目的：提供双波长光纤激光器，不需要额外的泵浦光源进行双波长激光器操作，并且可以解决泵浦光源的插入损耗和耦合损耗的问题，而无需使用马赫 - 曾德尔波导耦合器 。 构成：第一和第二有源光纤（36,37）对泵浦光源（100）引起电感散射，并且WDM（波分复用）​​光纤耦合器（33）输入泵浦光源的波长 并且通过与第一和第二有源光纤连接来输出激光振荡波长（λ1，λ2）。 第一谐振器单元（38）包括第一组的第一有源光纤和短周期光栅（31a，31b，31c）并振荡第一波长（λ1）。 第二谐振器单元（39）包括第二组的第二有源光纤和短周期光纤光栅（32a，32b）。 长周期光纤光栅（35）对于第一和第二波长具有高损耗，并且位于两个谐振器单元之间，并且消除两个谐振器单元之间的干扰。 并且泵浦光源反射器单元（34）通过连接到WDM光纤耦合器的激光输出端口来反射要再次入射在第一和第二有源光纤上的泵浦光（Ip）。

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