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公开(公告)号：WO2015167092A1
公开(公告)日：2015-11-05
申请号：PCT/KR2014/010570
申请日：2014-11-05
Applicant: 한국과학기술원
IPC: H01S3/06
CPC classification number: H01S3/06
Abstract: 본 발명은 처프 광섬유 브래그 격자 쌍을 이용한 광대역 고속 반복률 주사 광섬유 펨토초 레이저 공진기에 관한 것으로, 광섬유 펨토초 레이저 공진기이며, 상기 펨토초 레이저 공진기는 광섬유 기반의 부품으로 구성된 레이저 공진기로 구성되고, 모드 잠금을 구현하는 광섬유 기반의 포호흡수체 모드잠금부, 비선형 편광 회전 모드잠금부 및 상기 펨토초 레이저 공진기의 반복률을 조절하기 위한 반복률 주사부를 포함하여 구성된다. 또한, 상기 광섬유 펨토초 레이저 공진기는, 링타입(Ring-type)의 광섬유 공진기이며 링캐비티(Ring cavity) 구조를 가지며, 공진기의 이득 매질을 구현하는 희토류 첨가 광섬유, 이득 매질의 흡수 광 파장에 해당하는 광을 출력하는 다이오드 레이저, 상기 다이오드 레이저에서 발진된 광을 희토류 첨가 광섬유로 입사시켜주는 파장 분할 다중화기, 비선형 편광 회전에서 커 미디움(Kerr medium)을 담당하는 단일모드광섬유, 상기 공진기 내 생성된 펄스를 단방향으로 진행시키는 광잡음을 줄여주는 광섬유 아이솔레이터, 공진기 반복률의 안정화를 위한 피에조 소자(PZT) 및 출력단을 구성하는 광커플러를 포함하여 구성된다.
Abstract translation: 本发明涉及一种使用一对啁啾光纤布拉格光栅的宽带高重复率扫描飞秒光纤激光谐振器，它是飞秒光纤激光谐振器，飞秒激光谐振器包括由光纤 - 并且包括：用于实现模式锁定的基于光纤的可饱和吸收体模式锁定单元; 非线性偏振旋转模式锁定单元; 以及用于控制飞秒激光谐振器的重复率的高重复率扫描单元。 此外，飞秒级光纤激光谐振器是具有环腔结构的环型光纤谐振器，包括：稀土掺杂光纤，用于实现谐振器的增益介质; 用于输出与增益介质的光吸收波长相对应的光的二极管激光器; 用于将从二极管激光器照射的光引向稀土掺杂光纤的波分复用器; 在非线性偏振旋转期间用作克尔介质的单模光纤; 用于减少光学噪声并允许谐振器内产生的脉冲单向进行的光纤隔离器; 用于稳定谐振器的重复率的压电元件（PZT）; 以及构成输出端子的光耦合器。
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公开(公告)号：KR1020140049994A
公开(公告)日：2014-04-28
申请号：KR1020140019281
申请日：2014-02-19
Applicant: 한국과학기술원
CPC classification number: H01S3/1121 , G02B27/286 , H01S3/06712
Abstract: The present invention relates to a method and apparatus for generating high power femtosecond light pulses by combining nonlinear polarization rotation and saturable absorption. An apparatus for generating optical fiber femtosecond light pulses is an apparatus based on the optical fiber of a ring-type structure including a laser source. A nonlinear polarization rotation mode locking part generates ultrahigh frequency pulses with pulse shaping and is formed on the apparatus. A saturable absorption mode locking part performs the nonlinear filtering of the pulse amplitude, prevents the excessive nonlinear phenomenon of the apparatus, generates an initial pulse, and removes a dispersive wave generated from a soliton pulse.
Abstract translation: 本发明涉及通过组合非线性偏振旋转和可饱和吸收来产生高功率飞秒光脉冲的方法和装置。 用于产生光纤飞秒光脉冲的装置是基于包括激光源的环型结构的光纤的装置。 非线性偏振旋转模式锁定部分产生具有脉冲整形的超高频脉冲并形成在该装置上。 可饱和吸收模式锁定部分执行脉冲幅度的非线性滤波，防止装置的过度非线性现象，产生初始脉冲，并去除由孤子脉冲产生的色散波。
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公开(公告)号：KR1020140010256A
公开(公告)日：2014-01-24
申请号：KR1020120077203
申请日：2012-07-16
Applicant: 한국과학기술원
Abstract: A micro-vibration emulator comprises a platform, first to sixth actuators, and first to sixth structures. The platform is shaped into a cube. The first to sixth actuators are individually attached to the first to sixth surfaces of the platform; slightly vibrates the platform on the basis of operation signals; and controls the platform using six axes. The first to sixth structures are attached to the first to sixth actuators, respectively. [Reference numerals] (AA) Third axis; (BB) First axis; (CC) Second axis
Abstract translation: 微振动模拟器包括平台，第一至第六致动器以及第一至第六结构。 平台形成一个立方体。 第一至第六致动器分别附接到平台的第一至第六表面; 基于操作信号轻微振动平台; 并使用六个轴控制平台。 第一至第六结构分别附接到第一至第六致动器。 （标号）（AA）第三轴; （BB）第一轴; （CC）第二轴
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公开(公告)号：KR1020120138182A
公开(公告)日：2012-12-24
申请号：KR1020110057551
申请日：2011-06-14
Applicant: 한국과학기술원
CPC classification number: H01S3/06762 , H01S3/0835 , H01S3/1115
Abstract: PURPOSE: A micro fiber laser resonator based on a saturable absorber mirror and an optical filter is provided to obtain a relatively high yield by providing a high repetition rate in comparison of a micro laser of a bulk type. CONSTITUTION: Output light from a pumping light source(301) comprising a laser diode is outputted through a light coupler from an oscillator. Pump light is absorbed in an ytterbium added optical fiber(303) while being entered in the oscillator through a wavelength splitter(300). Partial light is oscillated in output passing through a light coupler(302). The light oscillating the rest of the oscillator passes a wave plate(304) and a light shielding unit(305). A horizontal polarization component is clipped in both ends of a spectrum passing through an optical filter(306). The clipped horizontal polarization ingredient enters a lens(309) and a saturable absorber mirror(310) passing through a polarizing beam splitter(307) and a λ/4 wave plate(308).
Abstract translation: 目的：提供一种基于可饱和吸收镜和光学滤波器的微光纤激光谐振器，通过提供大批量类型的微激光器提供高重复率来获得相对较高的产量。 构成：来自包括激光二极管的泵浦光源（301）的输出光从振荡器通过光耦合器输出。 在通过波长分离器（300）进入振荡器的同时，泵浦光被吸收在添加镱的光纤（303）中。 部分光在通过光耦合器（302）的输出中振荡。 振荡振荡器的光通过波片（304）和遮光单元（305）。 水平偏振分量在通过滤光器（306）的光谱的两端被限幅。 夹持的水平极化成分进入通过偏振分束器（307）和λ/ 4波片（308）的透镜（309）和可饱和吸收镜（310）。
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公开(公告)号：KR1020140052116A
公开(公告)日：2014-05-07
申请号：KR1020120116127
申请日：2012-10-18
Applicant: 한국과학기술원
IPC: H01S3/067
CPC classification number: H01S3/06704 , H01S3/0064 , H01S3/06725 , H01S3/1106
Abstract: The present invention relates to a high power optical fiber femtosecond laser resonator generated by the combination mode locking of nonlinear polarization rotation and saturable absorption. An optical fiber femtosecond laser resonator, which is an optical fiber based resonator of a ring-type structure, includes a nonlinear polarization rotation mode locking part which is formed on the resonator and generates an UHF pulse by pulse shaping, and a saturable absorption mode locking part which performs the nonlinear filtering of pulse amplitude, prevents the excess nonlinear phenomenon of the inner part of the resonator, generates an initial pulse, and removes a dispersive wave generated in a soliton pulse.
Abstract translation: 本发明涉及通过非线性偏振旋转和可饱和吸收的组合模式锁定而产生的高功率光纤飞秒激光谐振器。 作为环型结构的基于光纤的谐振器的光纤飞秒激光谐振器包括形成在谐振器上的非线性偏振旋转模式锁定部，并且通过脉冲整形产生UHF脉冲，并且可饱和吸收模式锁定 执行脉冲幅度的非线性滤波的部分防止谐振器内部部分的过量非线性现象产生初始脉冲，并去除孤子脉冲中产生的色散波。
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Patent Agency Ranking
公开(公告)号：KR1020110069695A
公开(公告)日：2011-06-23
申请号：KR1020100099613
申请日：2010-10-13
Applicant: 한국과학기술원
CPC classification number: G06F21/64 , H04L9/0618
Abstract: PURPOSE: A data transmission system at a network using network coding and a method thereof are provided to abandon a packet with an error, by checking integrity of received data using a checksum in the unit of block. CONSTITUTION: A transmission side node(100) includes a channel forming part(102), a data processing part(104) and a transmission part(106). The channel forming part forms a security channel. The channel forming part shares a security key with a reception side node(140). The data processing part generates a transmission packet. The data processing part calculates checksum value to each block. The data processing part transmits the calculated checksum value to the reception side node. The transmission part transmits the transmission packet to the reception side node. The reception side node checks integrity of the received transmission packet by comparing the calculated checksum value with the checksum value received from the transmission side node.
Abstract translation: 目的：提供使用网络编码的网络中的数据传输系统及其方法，通过使用块单元中的校验和来检查接收到的数据的完整性来放弃具有错误的分组。 构成：传输侧节点（100）包括信道形成部分（102），数据处理部分（104）和传输部分（106）。 信道形成部分形成安全信道。 信道形成部分与接收方节点（140）共享安全密钥。 数据处理部生成发送分组。 数据处理部分计算每个块的校验和值。 数据处理部将计算出的校验和值发送给接收侧节点。 发送部将发送分组发送到接收侧节点。 接收侧节点通过将计算的校验和值与从发送侧节点接收的校验和值进行比较来检查接收到的发送分组的完整性。
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公开(公告)号：KR1020150098125A
公开(公告)日：2015-08-27
申请号：KR1020140019272
申请日：2014-02-19
Applicant: 한국과학기술원
IPC: H04L12/28
Abstract: 무선 메쉬 네트워크에서 웜홀의 영향을 받지 않는 전송 경로 설정 시스템 및 방법이 개시된다.
이웃 노드에서 응답 경로(Route Request Message; RREP) 메시지를 수신하는 단계; 상기 메시지를 수신한 상기 이웃 노드에서 하이브리드 무선 메쉬 프로토콜(HWMP)의 기본적인 경로 요청(RREQ) 메시지 확인 절차(RREQ ID, Sequence number 확인)를 실행하는 단계; 상기 경로 요청(RREQ)의 2HA와 자신의 2HA를 비교하여 상기 경로 요청(RREQ) 메시지가 웜홀(wormhole)을 통하여 온 것인지 아닌지를 판단하는 단계; 및 수신한 경로 요청(RREQ)의 2HA 정보가 자신이 가지고 있는 2HA 정보와 일치하는 경우, 상기 이웃 노드의 라우팅 테이블에 상기 경로 요청(RREQ)을 업데이트 하는 단계를 포함한다.Abstract translation: 公开了一种在无线网状网络中设置无虫虫传播路径的系统和方法。 本发明可以包括以下步骤：从相邻节点接收路由请求消息（RREP）; 在接收到消息后，从相邻节点执行HWMP的RREQ消息标识（RREQ ID，序列号校验）; 通过比较RREQ的2HA和自身的2HA来确定RREQ消息是否通过虫洞; 在接收的RREQ的2HA信息与本身的2HA信息相同的情况下，更新相邻节点的路由表中的RREQ。
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公开(公告)号：KR101400137B1
公开(公告)日：2014-05-28
申请号：KR1020120077203
申请日：2012-07-16
Applicant: 한국과학기술원
Abstract: 미소진동 에뮬레이터는 플랫폼(platform), 제1 내지 제6 작동기(actuator)들 및 제1 내지 제6 구조물들을 포함한다. 플랫폼은 정육면체 형상을 가진다. 제1 내지 제6 작동기들은 플랫폼의 제1 내지 제6 면에 각각 부착되며, 구동 신호에 기초하여 플랫폼을 미소진동시키고 플랫폼에 대한 6축 제어를 수행한다. 제1 내지 제6 구조물들은 제1 내지 제6 작동기들에 각각 부착된다.
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公开(公告)号：KR101361980B1
公开(公告)日：2014-02-12
申请号：KR1020120105115
申请日：2012-09-21
Applicant: 한국과학기술원
IPC: G02B6/124
CPC classification number: G02B6/4221 , G02B6/124 , G02B6/2706 , G02B6/4204 , G02B6/4214 , G02B6/4226 , H01S3/0057 , H01S3/06754 , H01S3/10007 , H01S3/1301
Abstract: The present invention relates to an active compensation system of a chirp pulse amplification system having an optical fiber as an amplification medium. The chirp pulse amplification system including a diffraction grating pulse dilator compares and compensates the position of the beam emitted from the pulse dilator and an optical fiber amplification load. The present invention comprises a position measuring unit for detecting the position of the beam emitted therefrom and a compensation unit for compensating to match the positions of the two beams detected by the position measuring unit via controlling them optically.
Abstract translation: 本发明涉及一种具有光纤作为放大介质的啁啾脉冲放大系统的有源补偿系统。 包括衍射光栅脉冲扩张器的啁啾脉冲放大系统比较和补偿从脉冲扩张器发射的光束的位置和光纤放大负载。 本发明包括用于检测从其发射的光束的位置的位置测量单元和补偿单元，用于通过光学控制来补偿由位置测量单元检测到的两个光束的位置。
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10.发明公开포화흡수체와 비선형 편광 회전 현상을 통해 모드 동기가 되는 10 ＭＨｚ 이하의 반복률을 갖는 광섬유 레이저 공진기 有权SUB 10MHZ - 所有正常分散的光纤激光振荡器由可饱和吸收器和非线性偏振旋转原型模拟
公开(公告)号：KR1020130134199A
公开(公告)日：2013-12-10
申请号：KR1020120057545
申请日：2012-05-30
Applicant: 한국과학기술원
CPC classification number: H01S3/06704 , G02B27/149 , H01S3/10061 , H01S5/5072
Abstract: The present invention relates to an entire normal dispersion optical fiber laser resonator having a repetition rate of less than 10 MHz which is a mode locked through a saturation absorber and a nonlinear polarization rotation phenomenon, comprising a laser diode which outputs a laser pump light; a wavelength divider which couples the laser pump light outputted in the laser diode inside the resonator; a yitterbium addition optical fiber which amplifies a pulse of the resonator that penetrates the wavelength divider using the coupled pump light; a first wavelength plate (1/4) and a first wavelength plate (1/2) which convert the polarization of a laser light that penetrates the optical fiber; a first polarization light divider which separates the polarization of the laser light that penetrates each of the first wavelength plates; a birefringence determination based optical filter and an interference filter which respectively filters the penetration band of the light that penetrates the first polarization light divider; an optical shielding device which blocks a part of the light in the polarization that penetrates the interference filter; a second wavelength plate (1/2) which converts the polarization of the light that penetrates the optical shielding device; a second polarization light divider which separates the polarization of the laser light that penetrates the second wavelength plate; a second wavelength plate (1/4) which converts the polarization of the light that penetrates the second polarization light divider; a lens which penetrates the light that penetrates the second wavelength plate; a saturation absorber which induces a mode locking of the light that penetrates the lens; a third wavelength plate (1/4) which converts the polarization of the mode locked laser light; and a single mode optical fiber which induces the low repetition rate of the laser light that penetrates the third wavelength plate, wherein the laser light outputted in the laser diode is sequentially penetrated.
Abstract translation: 本发明涉及一种具有小于10MHz的重复频率的整个正常色散光纤激光谐振器，它是通过饱和吸收器锁定的模式和非线性偏振旋转现象，包括输出激光泵浦光的激光二极管; 波长分配器，耦合在激光二极管内输出的激光泵浦光; 一种掺镱添加光纤，其使用耦合的泵浦光来放大穿透波长分配器的谐振器的脉冲; 第一波长板（1/4）和第一波长板（1/2），其转换穿透光纤的激光的偏振; 第一偏振光分离器，其分离穿透每个第一波长板的激光的偏振; 基于双折射确定的光学滤波器和干涉滤光器，其分别滤光穿透第一偏振光分光器的光的穿透带; 光屏蔽装置，其阻挡穿过干涉滤光器的极化中的一部分光; 第二波长板（1/2），其转换穿过光学屏蔽装置的光的偏振; 第二偏振光分离器，其分离穿透第二波长板的激光的偏振; 第二波长板（1/4），其转换穿过第二偏振光分离器的光的偏振; 穿透第二波长板的光的透镜; 饱和吸收体，其诱导透过透镜的光的模式锁定; 转换模式锁定激光的偏振的第三波长板（1/4）; 以及引起穿透第三波长板的激光的低重复率的单模光纤，其中激光二极管中输出的激光依次被穿透。
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