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公开(公告)号：KR1020030088301A
公开(公告)日：2003-11-19
申请号：KR1020020026406
申请日：2002-05-14
Applicant: 한국전자통신연구원
IPC: G02B6/12
CPC classification number: G02B6/2813 , G02B6/12002
Abstract: PURPOSE: A multimode interference coupler and a multi-layer optical planar waveguide using the multimode interference coupler and a manufacturing method thereof are provided to reduce the interference between upper and lower waveguide by forming the multimode interference coupler in a stepped structure, which has a high coupling ratio, between the upper and lower waveguide. CONSTITUTION: A lower core layer(124) is formed on a portion of a glass substrate(110) using ion exchanging. A UV(Ultraviolet) photosensitive polymer is applied on an upper surface of an entire structure. A refractive index of the UV photosensitive polymer is changed upon being exposed to a UV light. An upper core layer(144) is formed on a portion of the UV photosensitive polymer. An upper clad layer(142) is formed on the upper surface of the entire structure. A metal mask is provided on the upper clad layer(142) corresponding to a region where a multimode interference coupler(130) is to be formed. The multimode interference coupler(130) and a lower clad layer(122) are formed by irradiating a UV light onto the upper surface of the entire structure.
Abstract translation: 目的：提供一种使用多模干扰耦合器的多模干涉耦合器和多层光学平面波导及其制造方法，以通过以阶梯式结构形成多模干涉耦合器来减小上波导与下波导之间的干扰，其具有高 上下波导之间的耦合比。 构成：使用离子交换在玻璃基板（110）的一部分上形成下芯层（124）。 UV（紫外线）感光性聚合物被施加在整个结构的上表面上。 UV光敏聚合物的折射率在暴露于紫外光下时发生变化。 在UV光敏聚合物的一部分上形成上芯层（144）。 在整个结构的上表面上形成上覆层（142）。 在与要形成多模干涉耦合器（130）的区域相对应的上覆层（142）上设置金属掩模。 通过将UV光照射到整个结构的上表面上来形成多模干涉耦合器（130）和下包层（122）。
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公开(公告)号：KR1020030050801A
公开(公告)日：2003-06-25
申请号：KR1020010081323
申请日：2001-12-19
Applicant: 한국전자통신연구원
IPC: G02B6/00
Abstract: PURPOSE: An Erbium doped optical fiber and an optical amplifier by utilizing the same are provided to remove the deterioration of the gain of the amplifier due to the non radiation energy transfer between the thulium and the Erbium and to improve the gain at a band width ranging from 1480 nm to 1530 nm. CONSTITUTION: An Erbium doped optical fiber includes a thulium doped layer formed at the center portion of the core of the optical fiber, an Erbium doped layer spaced apart at least of 50 nm from the thulium doped layer and an interface of core. In the Erbium doped optical fiber, the confinement factor of the thulium ions becomes larger than that of the Erbium ions.
Abstract translation: 目的：提供掺铒光纤和利用它的光放大器，以消除由于ium和铒之间的非辐射能量传递引起的放大器增益的恶化，并提高在带宽范围内的增益 从1480nm到1530nm。 构成：铒掺杂光纤包括在光纤的芯的中心部分形成的ium掺杂层，铒掺杂层至少与ium掺杂层和核的界面间隔开50nm。 在掺铒光纤中，ium离子的约束因子大于铒离子的约束因子。
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公开(公告)号：KR1020020005939A
公开(公告)日：2002-01-18
申请号：KR1020000039552
申请日：2000-07-11
Applicant: 한국전자통신연구원
CPC classification number: C03C4/0071 , C03C3/122 , C03C3/15 , C03C13/048
Abstract: PURPOSE: A tellurite glass composition doped with erbium ion(Er3+) and possibly GeO2 and In2O3 is provided, which improves pumping efficiency of 980nm region at optical amplifier and decreases crystallization in production of optical fibers besides advantages of a conventional tellurite glass. CONSTITUTION: An Er-doped tellurite glass composition is obtained by adding 0.05-5mol% of Er ion, 0-20mol% of GeO2 and/or 0-10mol% of In2O3 to a tellurite matrix glass comprising 40-80mol% of TeO2, 1-20mol% of B2O3, 5-30mol% of metal(2+) oxide, and 1-15mol% of alkali metal oxide, where the metal is at least one selected from the group consisting of Mg, Ca, Sr, Ba, Zn and Pb, and the alkali metal is at least one selected from the group consisting of Li, Na. K. Rb and Cs.
Abstract translation: 目的：提供掺有铒离子（Er3 +）和可能的GeO2和In2O3的碲化物玻璃组合物，除了常规的碲酸盐玻璃的优点外，还提高了光放大器980nm区域的泵浦效率，减少了光纤生产中的结晶。 构成：通过将0.05-5mol％的Er离子，0-20mol％的GeO 2和/或0-10mol％的In 2 O 3添加到包含40-80mol％的TeO 2的1的碲酸盐基质玻璃中获得铒掺杂的碲酸盐玻璃组合物， -20mol％的B2O3，5-30mol％的金属氧化物和1-15mol％的碱金属氧化物，其中金属是选自Mg，Ca，Sr，Ba，Zn中的至少一种 和Pb，碱金属为选自Li，Na中的至少一种。 K. Rb和Cs。
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公开(公告)号：KR100311220B1
公开(公告)日：2001-10-18
申请号：KR1019990045301
申请日：1999-10-19
Applicant: 한국전자통신연구원
IPC: G02B6/00
Abstract: 본발명은툴륨이온(Tm) 첨가유리를광증폭매질로이용하는 1.47 ㎛ (1.42 ㎛내지 1.52㎛) 대역의광증폭기에서 Tm:H-F준위간밀도반전이보다효율적으로이루어지도록할 수있는다중펌프광을이용한광증폭기구동방법및 그방법을이용하는광섬유광증폭기에관한것으로, 펌프광으로서H←H기저상태흡수에해당하는약 0.79 ㎛파장의제1 펌프광및H←F여기상태흡수에해당하는약 1.4 ㎛또는F,F←F여기상태흡수에해당하는약 1.1 ㎛파장의제2 펌프광을동시에조사하는방법및 그방법을이용한광증폭기구조를제공한다. 또한, 상기의두 파장의펌핑구도를보다간편하게구현하기위하여툴륨이온이첨가된코어가네오디뮴이온이첨가된이중클래딩으로둘러싸인구조의광섬유를이용하거나툴륨첨가광섬유전단또는후단에네오디뮴첨가광섬유가연결된구조의광섬유를이용하여 0.79 ㎛단일파장의펌프광으로두 파장의펌핑효과를얻을수 있도록한다.
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公开(公告)号：KR1020010055120A
公开(公告)日：2001-07-04
申请号：KR1019990056201
申请日：1999-12-09
Applicant: 한국전자통신연구원
IPC: G02B6/00
CPC classification number: H01S3/06716 , H01S3/1606 , H01S3/1616 , H01S2301/02
Abstract: PURPOSE: A rare earth erbium doped fiber amplifier is provided to improve a gain characteristic at 1450nm band by preventing a gain from being saturated owing to an amplified spontaneous emission. CONSTITUTION: A thulium ion is partially added to an optical fiber core, and a dysprosium ion is partially added to a clad. The thulium ion(Tm3+) added to the optical fiber core functions as lasing or amplification. An optical fiber, which consists of a dysprosium ion(Dy3+) or neodymium ion(Nd3+) added layer, is used as an optical fiber amplifier and an optical fiber laser.
Abstract translation: 目的：提供稀土掺铒光纤放大器，通过防止放大的自发发射使增益不被饱和，从而提高1450nm波段的增益特性。 构成：将ium离子部分地添加到光纤芯中，并将镝离子部分地添加到包层。 添加到光纤芯中的ium离子（Tm3 +）起着激光或放大的作用。 使用由镝离子（Dy3 +）或钕离子（Nd3 +）添加层组成的光纤作为光纤放大器和光纤激光器。
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Patent Agency Ranking
公开(公告)号：KR1020010036623A
公开(公告)日：2001-05-07
申请号：KR1019990043722
申请日：1999-10-11
Applicant: 한국전자통신연구원
IPC: C03C3/00
CPC classification number: C03C13/048 , C03C3/122 , C03C3/253 , H01S3/177
Abstract: PURPOSE: A new glass composition capable of being used for medium glass of an optical waveguide light amplifier added with rare earth metal ion containing optical fiber is provided, which is easy to control manufacturing processes of medium glass as compared to conventional tellurite glass, has low light loss by generation of fine crystal particles and increases the fluorescent life of the added active ion. CONSTITUTION: The glass composition comprises 20 to 70% by mole of TeO2, 10 to 50% by mole of GeO2 and/or 1 to 30% by mole of In2O3, 5 to 30% by mole of MO(M is a metal selected from the group consisting of Mg, Ca, Sr, Ba, Zn and Pb), and/or 1 to 20% by mole of R2O(R is an element selected from the group consisting of Li, Na, K, Rb and Cs) and additionally 0 to 10% by mole of Bi2O3.
Abstract translation: 目的：提供一种能够用于添加含有稀土金属离子的光纤的光波导光放大器的中等玻璃的新玻璃组合物，其与传统的碲化物玻璃相比容易控制中等玻璃的制造工艺，具有低的 通过产生细晶体颗粒的光损失并增加添加的活性离子的荧光寿命。 构成：玻璃组合物含有20〜70摩尔％的TeO 2，10〜50摩尔％的GeO 2和/或1〜30摩尔％的In 2 O 3，5〜30摩尔％的MO（M是选自 由Mg，Ca，Sr，Ba，Zn和Pb组成的组）和/或R 2 O为1至20摩尔％（R为选自Li，Na，K，Rb和Cs的元素）和 另外0〜10摩尔％的Bi 2 O 3。
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公开(公告)号：KR1020010018213A
公开(公告)日：2001-03-05
申请号：KR1019990034076
申请日：1999-08-18
Applicant: 한국전자통신연구원
IPC: G01J1/00
CPC classification number: G01J11/00
Abstract: PURPOSE: A measuring device for the waveform of an optical pulse is provided to measure the actual waveform of a fast optical pulse by converting the temporal waveform of an input optical pulse to wavelength area using a supercontinuum light source and a nonlinear optical interferometer. CONSTITUTION: A measuring device for the waveform of an optical pulse comprises a linearly chirped supercontinuum light synchronized with an optical pulse(21); a nonlinear optical interferometer(40) converting the temporal waveform of the optical pulse to a wavelength area; and an optical wavelength analyzer(50) measuring the wavelength from the nonlinear optical interferometer. Further, the temporal waveform of the optical pulse is measured by a single-shot not a repetitious measurement.
Abstract translation: 目的：提供一种用于光脉冲波形的测量装置，通过使用超连续谱光源和非线性光学干涉仪将输入光脉冲的时间波形转换为波长区域来测量快速光脉冲的实际波形。 构成：用于光脉冲波形的测量装置包括与光脉冲同步的线性啁啾超连续光; 将所述光脉冲的时间波形转换为波长区域的非线性光学干涉仪（40） 以及测量来自非线性光学干涉仪的波长的光学波长分析仪（50）。 此外，光脉冲的时间波形通过单次测量而不是重复测量来测量。
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公开(公告)号：KR1020010011093A
公开(公告)日：2001-02-15
申请号：KR1019990030313
申请日：1999-07-26
Applicant: 한국전자통신연구원
IPC: G02B6/42
Abstract: PURPOSE: An apparatus for compensating the color dispersion using a poled optical fiber is provided to improve the transmission speed, and to achieve a mass storage system by an intermediate wavelength inversion method. CONSTITUTION: The method is composed of a pump light source(3), an optical fiber coupler(4), a poled optical fiber(5), and a filter(6). The apparatus is located at the center of the transmission area. An optical signal(1) transmitted via single mode optical fiber(2) is moved with the pump light source to the optical fiber coupler, and generates a phase conjugated wave at the poled optical fiber. The generated phase conjugated wave is transmitted via the single mode optical fiber after intercepting the other light using the filter. The phase restoration property of the phase conjugated wave compensates the color dispersion of the single mode optical fiber. After the phase conjugated being performed, a short wavelength section located at the front portion of the light is disposed at the back portion of the pulse, and a long wavelength section located at the back portion of the light is disposed at the front portion of the pulse. As the phase conjugated wave again progresses along the single mode optical fiber, it is possible to compensate the diffusion phenomena caused by the color dispersion.
Abstract translation: 目的：提供一种使用极化光纤补偿色散的装置，以提高传输速度，并通过中间波长反转方法实现大容量存储系统。 构成：该方法由泵浦光源（3），光纤耦合器（4），极化光纤（5）和滤波器（6）构成。 该设备位于传输区域的中心。 通过单模光纤（2）传输的光信号（1）通过泵浦光源移动到光纤耦合器，并在极化的光纤上产生相位共轭波。 所产生的相位共轭波在使用滤波器截取其它光线之后通过单模光纤传输。 相位共轭波的相位恢复特性补偿了单模光纤的色散。 在执行相位共轭之后，位于光的前部的短波长部分设置在脉冲的后部，并且位于光的后部的长波长部分设置在光的前部 脉冲。 随着相位共轭波再次沿着单模光纤进行，可以补偿由色散引起的扩散现象。
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公开(公告)号：KR1020000037708A
公开(公告)日：2000-07-05
申请号：KR1019980052357
申请日：1998-12-01
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A light reversible multiplexor is provided to obtain a reversibly multiplied signal easily without using a light filter by using a light fiber loop mirror. CONSTITUTION: A light of pump light and signal light is irradiated into an input port(11). A output port(14) outputs the mixed light. A dispersing medium consists of a light fiber. A light fiber loop mirror(20) generates dispersion of color. A light engager(30) irradiates the light which is irradiated in the input port(11) towards both directions of the light fiber loop mirror(20), and processes the light to the input port(11) and the output port(14).
Abstract translation: 目的：提供光可逆多路复用器，以便通过使用光纤环路镜轻松地获得可逆相位信号而不使用滤光器。 构成：将泵浦光和信号光照射到输入端口（11）中。 输出端口（14）输出混合光。 分散介质由光纤组成。 光纤环路镜（20）产生色散。 光接收器（30）将照射在输入端口（11）中的光朝向光纤环路反射镜（20）的两个方向照射，并将光处理到输入端口（11）和输出端口（14） 。
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50.发明授权
公开(公告)号：KR100212478B1
公开(公告)日：1999-08-02
申请号：KR1019960069405
申请日：1996-12-21
Applicant: 한국전자통신연구원
IPC: G02B6/42
Abstract: 본 발명은 분산 천이 광섬유를 사용한 경우의 단점을 보완하면서 기존의 이중 모드 광섬유와 광섬유 모드 변환기 두개를 사용할 때의 분산 보상의 어려움을 한결 더 쉽게 구현할 수 있는 방법으로, 초고속 광전송에서 사용될 광원으로 유력한 모드로킹된 광섬유 레이저의 광펄스를 변환 한계까지 줄이기 위하여 공진기 내에 광섬유 회전기와 이중 모드 광섬유 및 한 개의 모드 변환기를 사용함으로써, 광펄스 확장의 주요 요인인 색 분산을 보상할 수 있는 광섬유 회전기와 이중 모드 광섬유를 이용한 링형 광섬유 레이저 및 그를 이용한 색분산 보상 방법에 관한 것이다.
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