公开(公告)号：KR100341853B1

公开(公告)日：2002-06-26

申请号：KR1019990025141

申请日：1999-06-29

Applicant: 한국전자통신연구원

Inventor： 이종현 ,  이명래 ,  장원익 ,  최창억

IPC: G02B6/00

Abstract: 본발명은대용량(테라비트급) 정보교환을위한파장분할방식의광통신시스템에있어서광신호중의하나의파장을선택하기위한패브리-페롯형의광 필터의구조에관한것이다. 본발명은서로마주보는광 입력용광섬유및 광출력용광섬유과; 상기광섬유사이에장착된입사광용마이크로볼렌즈및 출력광용마이크로볼렌즈와; 서로마주보는상태로상기각 마이크로볼렌즈사이에장착되며, 각각은한 쌍의실리콘판으로이루어진두 개의실리콘거울과; 지지체와연결되어고정전극사이에위치하며, 어느한실리콘거울과연결되는액츄에이터를포함하여이루어지며, 필터제작에있어서부가적인증착이필요없게되어공정의단순화와제작의단가를낮출수 있고, 이와더불어우수한파장선택성과넓은영역의파장가변성을가진필터를구현할수 있는광 필터를개시한다.

公开(公告)号：KR1020020041850A

公开(公告)日：2002-06-05

申请号：KR1020000071463

申请日：2000-11-29

Applicant: 한국전자통신연구원

Inventor： 이정찬 ,  주무정 ,  김광준 ,  이종현

IPC: G02B6/00

CPC classification number: H01S3/06758

Abstract: PURPOSE: A long wavelength band erbium-doped fiber amplifier and a backward amplified spontaneous emission intercepting method are provided to improve an input/output photo intensity change efficiency and noise factor feature by adjusting an intercepting rate of a backward amplified spontaneous emission. CONSTITUTION: A light signal is inputted to a first stage erbium-doped fiber(202). An output light signal amplified by a second stage erbium-doped fiber(203) is outputted through an IWDM photo coupler(204). A laser diode(205) provides an excited light to a TIWDM photo coupler(201). The TIWDM photo coupler(201) couples an input light signal and an exited light of 980 nm. An IWDM photo coupler(204) couples an output light signal and an exited light of 1480 nm. A controller is installed between the first and second stage erbium-doped fibers(202,203) and controls an intercepting rate of a backward amplified spontaneous emission. Two 3 port photo circulators(207,208) are connected between the first and second stage erbium-doped fibers(202,203) to each other in series.

Abstract translation: 目的：提供长波长带掺铒光纤放大器和反向放大自发发射截止方法，通过调整反向放大自发发射的截取率来提高输入/输出光强变化效率和噪声因子特征。 构成：将光信号输入到第一级掺铒光纤（202）。 通过IWDM光耦合器（204）输出由第二级掺铒光纤（203）放大的输出光信号。 激光二极管（205）向TIWDM光耦合器（201）提供激发光。 TIWDM光耦合器（201）耦合输入光信号和980nm的退出光。 IWDM光耦合器（204）耦合输出光信号和1480nm的退出光。 控制器安装在第一和第二级掺铒光纤（202,203）之间，并控制反向放大的自发发射的截取速率。 两个3端口光电循环器（207,208）彼此串联连接在第一和第二级掺铒光纤（202,203）之间。

公开(公告)号：KR1020010055935A

公开(公告)日：2001-07-04

申请号：KR1019990057271

申请日：1999-12-13

Applicant: 한국전자통신연구원

Inventor： 정희상 ,  이종현 ,  박남규 ,  이동한

IPC: G02B6/02

Abstract: PURPOSE: An L-band EDFA(Erbium Doped Fiber Amplifier) is provided to be capable of securing a large gain by using an EDF length of the second amplification stage longer than that of the first amplification stage. CONSTITUTION: The first amplification stage(100) has the first EDF(102) of a predetermined length and a reverse-direction pump 980nm laser diode(103) in order to lower a noise figure of an input light of a long wavelength band, and it amplifies the input light. The second amplification stage(300) has the second EDF(303) of a predetermined length and a bidirectional pump 980nm laser diode(302) in order to adjust a gain magnitude, and it amplifies the primarily amplified input light. The length of the second EDF is ten to twentieth times as long as that of the first EDF. An isolator(200) is connected between the first and second amplification stages so as to isolate the first and second amplification stages.

Abstract translation: 目的：提供L波段EDFA（掺铒光纤放大器），通过使用第二放大级的EDF长度比第一放大级长的EDF长度能够确保大的增益。 构成：为了降低长波长带的输入光的噪声系数，第一放大级（100）具有预定长度的第一EDF（102）和反向泵980nm激光二极管（103），并且 它放大输入光。 为了调整增益幅度，第二放大级（300）具有预定长度的第二EDF（303）和双向泵980nm激光二极管（302），并且它放大了主要被放大的输入光。 第二EDF的长度是第一EDF的长度的十到二十倍。 隔离器（200）连接在第一和第二放大级之间，以隔离第一和第二放大级。

公开(公告)号：KR100275536B1

公开(公告)日：2001-01-15

申请号：KR1019970069576

申请日：1997-12-17

Applicant: 한국전자통신연구원

Inventor： 조규형 ,  이광 ,  이종현

IPC: H01L27/085

Abstract: PURPOSE: A drive circuit for micro gyro is provided to maintain a desired size of reference vibration by tracking an operating point of a structure. CONSTITUTION: An inversion amplification portion(42) receives the frist control voltage. The first auxiliary amplification portion(43) receives an output of the inverse amplification portion(42) and the second control voltage and decides an operating point of the inverse amplification portion(42). A phase delay portion(44) is used for delaying a phase of the output of the inverse amplification portion(42). A non-inversion amplification portion(45) receives an output of the phase delay portion(44) and the second control voltage. An output of the non-inversion amplification portion(45) is connected with a structure. The second auxiliary amplification portion(46) receives an output of the non-inversion amplification portion(45) and the third control voltage and decides an operating point of the non-inversion amplification portion(45). An amplitude control portion(47) is used for controlling a size of a reference vibration of the structure.

Abstract translation: 目的：提供用于微型陀螺仪的驱动电路，以通过跟踪结构的操作点来保持所需尺寸的参考振动。 构成：反转放大部分（42）接收第一控制电压。 第一辅助放大部分（43）接收反向放大部分（42）的输出和第二控制电压，并且确定反向放大部分（42）的工作点。 相位延迟部分（44）用于延迟反向放大部分（42）的输出的相位。 非反转放大部分（45）接收相位延迟部分（44）的输出和第二控制电压。 非反转放大部（​​45）的输出与结构连接。 第二辅助放大部分（46）接收非反相放大部分（45）的输出和第三控制电压，并且确定非反相放大部分（45）的工作点。 振幅控制部（47）用于控制结构的基准振动的大小。

公开(公告)号：KR100275485B1

公开(公告)日：2001-01-15

申请号：KR1019970073027

申请日：1997-12-24

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 남상식 ,  이성일 ,  이종현 ,  나원산

IPC: H02M3/00

Abstract: PURPOSE: An inrush current protection and switching circuit for a direct current to direct current converter is provided to prevent an inrush current occurring on switching by incorporating an inrush current protection circuit with a switching circuit that functions to switch between subsystems. CONSTITUTION: An inrush current protection and switching circuit for a direct current to direct current converter comprises a switching unit(330), a driving unit(320), and an inrush current protection unit(310). The switching unit stabilizes an input voltage in response to an instruction to drive the direct current to direct current converter and delays the instruction to drive to be transmitted to the driving unit. Also, the switching unit transmits a switching signal in response to an instruction to stop the direct current to direct current converter and delays the instruction to stop to be transmitted to the driving unit. The driving unit receives the instruction to drive or stop from the switching unit for transmitting an instruction to control the connection of power supply. The inrush current preventing unit receives the instruction to control the connection of power supply for delaying the connection and disconnection of power supply.

Abstract translation: 目的：提供直流到直流电转换器的浪涌电流保护和开关电路，以防止在切换时产生浪涌电流，该浪涌电流保护电路与具有切换电路的浪涌电流保护电路相连。 构成：用于直流到直流电转换器的浪涌电流保护和开关电路包括开关单元（330），驱动单元（320）和浪涌电流保护单元（310）。 开关单元响应于将直流驱动到直流电转换器的指令而稳定输入电压，并延迟驱动指令以被传输到驱动单元。 此外，开关单元响应于将直流电流停止到直流电流转换器的指令而发送开关信号，并且延迟停止指令以被发送到驱动单元。 驱动单元从切换单元接收用于发送用于控制电源连接的指令的驱动或停止指令。 浪涌电流防止单元接收用于控制电源的连接的指令，用于延迟电源的连接和断开。

公开(公告)号：KR100270580B1

公开(公告)日：2000-11-01

申请号：KR1019980017946

申请日：1998-05-19

Applicant: 한국전자통신연구원

Inventor： 최창억 ,  이종현 ,  장원익 ,  백종태

IPC: G02B3/00

Abstract: PURPOSE: A manufacturing method of a lens-type light concentration structure is provided to increase laser concentrating efficiency and manufacturing precision by directly processing the silicon plate. CONSTITUTION: A determined thickness of silicon epitaxial layer(2) is formed in multi layer on a silicon plate(1) top doped with impurity. The impurity concentration is distributed to be increasingly larger away from the center of the silicon epitaxial layer(2). Some region of the silicon epitaxial layer(2) is etched to expose the silicon plate(1), in order to form a silicon epitaxial layer pattern(4). Impurity is diffused on the entire surface including the silicon epitaxial layer pattern(4). An oxide layer grown by a thermal oxidation process is etched and a light concentration structure with 3-dimensional convex lens shape is formed vertically on the silicon plate(1).

Abstract translation: 目的：提供透镜式光浓度结构的制造方法，以通过直接处理硅板来提高激光浓缩效率和制造精度。 构成：在掺杂有杂质的硅板（1）顶上的多层中形成硅外延层（2）的确定厚度。 杂质浓度分布成越远离硅外延层（2）的中心。 蚀刻硅外延层（2）的一些区域以暴露硅板（1），以形成硅外延层图案（4）。 杂质在包括硅外延层图案（4）的整个表面上扩散。 蚀刻通过热氧化处理生长的氧化物层，并且在硅板（1）上垂直形成具有3维凸透镜形状的光浓度结构。

公开(公告)号：KR1020000032606A

公开(公告)日：2000-06-15

申请号：KR1019980049111

申请日：1998-11-16

Applicant: 한국전자통신연구원

Inventor： 이성은 ,  이상록 ,  방준학 ,  전경규 ,  이종현

IPC: G02B6/35

Abstract: PURPOSE: A wavelength division optical switching device is to allow an optical switching device to have a simple structure capable of switching a wavelength division multiplexed optical signal without a variable wavelength filter and a wavelength converter. CONSTITUTION: A wavelength division optical switching device comprises a first divider(221,22N) for dividing a wavelength division multiplexed optical signal transferred through an input port and an optical switching part(223,23N) for switching the optical signal divided by the first divider to a corresponding output port. The optical switching part comprises: a second divider(241,24N) for again dividing a signal transferred by the first divider; an optical switch(251,25N) for selectively switching optical signal transferred from the second divider; a fixing wavelength filter(261 to 26N) that filters an optical signal selected by the optical switch to extract an optical signal having a corresponding wavelength and transfers the extracted optical signal; and a wavelength multiplexer(271) that multiplexes the optical signal extracted by the fixing wavelength filter and transfers the multiplexed optical signal to a corresponding output port.

Abstract translation: 目的：波分分光开关器件允许光开关器件具有能够切换波分复用光信号而不用可变波长滤波器和波长转换器的简单结构。 构成：波分分割光开关装置包括用于分割通过输入端口传送的波分复用光信号的第一分频器（221,22N）和用于切换由第一分频器划分的光信号的光开关部分（223,23N） 到相应的输出端口。 光切换部分包括：第二分频器（241,24N），用于再次分割由第一分频器传送的信号; 用于选择性地切换从第二分频器传送的光信号的光开关（251,25N） 固定波长滤波器（261至26N），其对由所述光开关选择的光信号进行滤波以提取具有相应波长的光信号并传送所提取的光信号; 以及多路复用由固定波长滤波器提取的光信号并将复用的光信号传送到相应的输出端口的波长多路复用器（271）。

公开(公告)号：KR1020000018926A

公开(公告)日：2000-04-06

申请号：KR1019980036777

申请日：1998-09-07

Applicant: 한국전자통신연구원

Inventor： 최창억 ,  이종현 ,  장원익 ,  김대용

IPC: H01L29/84

CPC classification number: B81C1/00301 ,  B81B2207/096 ,  H01L21/76838 ,  H01L2224/48465 ,  H01L2924/10253 ,  H01L2924/00

Abstract: PURPOSE: A method of fabricating a micro-vacuum structure for a device operated in vacuum is provided to reduce a step of containing each acceleration sensor in vacuum according to each sensor chip. CONSTITUTION: A method of fabricating a micro-vacuum structure for a device operated in vacuum comprises the steps of totally etching a silicon epitaxial layer of a silicon substrate having the upper silicon epitaxial layer, an interlayer insulating film, and a lower silicon bulk layer to form and seal two electrode structures and a floated vibration structure with a vacuum sealing substrate; and etching from a rear side of the silicon substrate to the interlayer insulating film to form metal electrode after opening the electrode structure.

Abstract translation: 目的：提供一种用于在真空中操作的装置制造微型真空结构的方法，以减少根据每个传感器芯片在真空中容纳每个加速度传感器的步骤。 构成：一种制造用于真空操作的器件的微型真空结构的方法包括以下步骤：将具有上硅外延层，层间绝缘膜和下硅体层的硅衬底的硅外延层全蚀刻到 形成并密封两个电极结构和带有真空密封基板的浮动振动结构; 并从硅衬底的后侧蚀刻到层间绝缘膜，以在打开电极结构之后形成金属电极。

公开(公告)号：KR1019990085499A

公开(公告)日：1999-12-06

申请号：KR1019980017946

申请日：1998-05-19

Applicant: 한국전자통신연구원

Inventor： 최창억 ,  이종현 ,  장원익 ,  백종태

IPC: G02B3/00

Abstract: 본 발명은 렌즈형 집광 구조물의 제조 방법에 관한 것이다.
본 발명에서는 실리콘 기판 상부에 불순물이 주입된 실리콘 에피층을 다층으로 형성하되, 중앙부를 중심으로 대칭적으로 불순물의 농도를 조절하여 실리콘 에피층을 형성하고, 상기 실리콘 에피층을 패터닝한 후 불순물 확산 및 산화 공정을 실시하여 산화막을 성장시키고, 상기 산화막을 식각할 때 불순물의 농도에 따른 식각율의 차이를 이용하여 실리콘 기판상에 수직으로 형성된 렌즈형 집광 구조물을 제조한다.
상기와 같이 제조된 본 발명에 따른 렌즈형 집광 구조물을 레이저 다이오드에서 방출되는 광과 광섬유를 커플링시키는 광 커플링 장치에 이용하면 광 집광의 효율성을 높일 수 있다.

公开(公告)号：KR100211987B1

公开(公告)日：1999-08-02

申请号：KR1019960064709

申请日：1996-12-12

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 김홍주 ,  이동춘 ,  이창기 ,  김호건 ,  이종현

IPC: H04L12/43

CPC classification number: H04Q11/0478 ,  H04J2203/0041 ,  H04J2203/0042

Abstract: 본 발명은 디지틀 전송 분야의 동기식 전송 시스템 분류 중 단국형, 분기 결합형, 교차 연결형 중에서 교차 연결형에 속하는 것으로서 2.5Gbps급(STM-16)입출력 링크와 링 망 연동 기능을 통합한 동기식 교차 연결 장치에 관한 것이다.
본 발명은 다수의 STM-16 신호에 대한 입출력 기능을 수행하는 입출력 수단과, 상기 입출력 수단의 신호를 교차/연결하는 신호 교차 수단과, 상기 입출력 수단과 상기 신호 교차 수단에 필요한 동기 신호를 출력하는 동기 수단으로 구성되어, 기능부간 다중화된 병렬 AUG 데이타의 접속 관계를 동일하게 함으로써 융통성 있는 기능 구성을 가질 수 있을 뿐만 아니라, 접속되는 신호를 병렬처리하여 안정된 장치를 제공하고, 국간 전송 용량이 2.5Gbps급인 구간에서는 별도의 장치 없이 전송 능력을 가지므로, 규모면에서 경제적이고 효율적으로 구성할 수 있으며, 즉각적인 링 복구 기능을 가짐으로써 생존도를 향상시킨다는 장점이 있다.