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公开(公告)号：KR100639918B1
公开(公告)日：2006-11-01
申请号：KR1020040107033
申请日：2004-12-16
Applicant: 한국전자통신연구원
IPC: G11B9/14
CPC classification number: H01H1/0036 , H01H57/00 , H01H59/0009 , H01H2057/006
Abstract: 본 발명은 마이크로 전자기계 시스템 액츄에이터에 관한 것으로, 보다 상세하게는 압전 캔틸레버 액츄에이터와 콤브 액츄에이터가 결합되어 2축 구동을 하는 마이크로 전자기계 시스템 액츄에이터를 제공한다. 본 액츄에이터에 의하면, 가동 콤브가 압전물질로 구성되어 있어 평면 액츄에이션뿐만 아니라, z축으로의 포커싱 액츄에이션도 병행가능하여 초박형 광 디스크 드라이브의 구동장치에 사용가능하다.
콤브 액츄에이터, 압전 액츄에이터, 압전 단결정 액츄에이터-
公开(公告)号：KR100597197B1
公开(公告)日：2006-07-05
申请号：KR1019990033395
申请日：1999-08-13
Applicant: 한국전자통신연구원
IPC: G02F1/39
Abstract: 본 발명은 광섬유 형태나 기타 광도파로 형태의 광증폭기로 사용할 수 있는 복합 이온 첨가 낮은 포논 에너지 유리 및 이를 이용한 광섬유 증폭기에 관한 것으로서, 상세하게는 통신 분야에서 유용하게 사용될 수 있는 어븀 이온을 첨가한, 구체적으로는 +3가 어븀(Er
3+ ) 이온을 첨가한 비정질 재료로부터 발생하는 1.5 ㎛ 대역의 근적외선 형광을 이용하는 광섬유 증폭기의 980 nm 대역의 여기 효율을 향상시키기 위하여 +3가 세륨(Ce
3+ ) 이온 또는 세륨 이온과 +3가 이터븀(Yb
3+ ) 이온을 공동으로 첨가함으로써 980 nm 파장 대역의 여기 효율을 증가시키고 1550 nm 파장대 광 증폭 특성 향상을 시킨 것이다.-
公开(公告)号：KR1020060068370A
公开(公告)日：2006-06-21
申请号：KR1020040107033
申请日：2004-12-16
Applicant: 한국전자통신연구원
IPC: G11B9/14
CPC classification number: H01H1/0036 , H01H57/00 , H01H59/0009 , H01H2057/006
Abstract: 본 발명은 마이크로 전자기계 시스템 액츄에이터에 관한 것으로, 보다 상세하게는 압전 캔틸레버 액츄에이터와 콤브 액츄에이터가 결합되어 2축 구동을 하는 마이크로 전자기계 시스템 액츄에이터를 제공한다. 본 액츄에이터에 의하면, 가동 콤브가 압전물질로 구성되어 있어 평면 액츄에이션뿐만 아니라, z축으로의 포커싱 액츄에이션도 병행가능하여 초박형 광 디스크 드라이브의 구동장치에 사용가능하다.
콤브 액츄에이터, 압전 액츄에이터, 압전 단결정 액츄에이터-
公开(公告)号：KR1020050087427A
公开(公告)日：2005-08-31
申请号：KR1020040013209
申请日：2004-02-26
Applicant: 한국전자통신연구원
IPC: G02B6/02
CPC classification number: H04B10/2916 , H01S3/0064 , H01S3/06716 , H01S3/06766 , H01S3/0677 , H01S3/094011 , H01S3/0941 , H01S3/1608 , H01S3/302 , G02B6/02047
Abstract: Provided are an optical fiber that prevents optical amplification bands from overlapping each other while enabling optical signal amplification by a rare-earth element and optical signal amplification by a nonlinear Raman effect to simultaneously occur by performing a pumping operation using a single-wavelength light source, and a hybrid optical amplifier using the same. The optical fiber includes: a clad; and a core configured to have a refractive index larger than that of the clad, the core including a first element doped to receive pumped light having a predetermined wavelength and optically amplify the received signal light into a first band using a rare-earth element, and a second element doped to optically amplify the received signal light using nonlinear Raman optical amplification into a second band.
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公开(公告)号：KR1020040095485A
公开(公告)日：2004-11-15
申请号：KR1020030029357
申请日：2003-05-09
Applicant: 한국전자통신연구원
IPC: C03C3/32
CPC classification number: C03C3/321
Abstract: PURPOSE: Provided is a selenide glass composition for an optical amplifier, which has improved thermal stability while maintaining fluorescence characteristics of praseodymium, a rare earth metal element. CONSTITUTION: The selenide glass composition comprises germanium-antimony-selenium to which a rare earth metal element is added. In the glass composition, the contents of germanium, antimony and selenium are 18-32 mol%, 8-17 mol% and 58-72 mol%, respectively. In a variant, the selenide glass composition comprises germanium-antimony-gallium-selenium to which a rare earth metal element is added, wherein the contents of germanium, antimony, gallium and selenium are 23-32 mol%, 3-12 mol%, 2-7 mol% and 53-62 mol%, respectively. The rare earth metal element is at least one selected from the group consisting of praseodymium, dysprosium, erbium, thulium, terbium and neodymium.
Abstract translation: 目的：提供一种用于光放大器的硒化物玻璃组合物，其具有改善的热稳定性，同时保持稀土金属元素镨的荧光特性。 构成：硒化物玻璃组合物包含添加有稀土金属元素的锗 - 锑 - 硒。 在玻璃组合物中，锗，锑和硒的含量分别为18-32摩尔％，8-17摩尔％和58-72摩尔％。 在一个变体中，硒化物玻璃组合物包括添加有稀土金属元素的锗 - 锑 - 镓硒，其中锗，锑，镓和硒的含量为23-32摩尔％，3-12摩尔％ 分别为2-7mol％和53-62mol％。 稀土金属元素是选自镨，镝，铒，ium，铽和钕中的至少一种元素。
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Patent Agency Ranking
公开(公告)号：KR100418262B1
公开(公告)日：2004-02-14
申请号：KR1020020026406
申请日：2002-05-14
Applicant: 한국전자통신연구원
IPC: G02B6/12
CPC classification number: G02B6/2813 , G02B6/12002
Abstract: The present invention relates to a multi-layer optical planar waveguide which is vertically coupled using multimode-interference couplers and to the method of manufacturing the same. The purpose of this invention is to increase the degree of integration on the multi-layer optical planar waveguide by applying the concept of via holes of the multi-layer printed circuit board (MLPCB) used in electronic circuits to the optical waveguide devices. According to the present invention, particularly, a multimode interference coupler of a stepped structure has the higher coupling ratio at relatively short length of interference than the usual multimode interference coupler. The present invention can implement a multimode interference coupler at a specialized spot while reducing evanescent field interference between the upper and lower optical waveguides out of the spot by separating the layers enough.
Abstract translation: 本发明涉及使用多模干涉耦合器垂直耦合的多层光学平面波导及其制造方法。 本发明的目的是通过将用于电子电路中的多层印刷电路板（MLPCB）的通孔的概念应用于光波导器件来增加多层光学平面波导上的集成度。 根据本发明，特别地，阶梯结构的多模干涉耦合器在相对短的干扰长度处具有比通常的多模干涉耦合器更高的耦合比。 本发明可以在专用点处实现多模干涉耦合器，同时通过足够地分离这些层来减少上方和下方光学波导之间的eva逝场干扰。
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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：KR1020030087119A
公开(公告)日：2003-11-13
申请号：KR1020020024689
申请日：2002-05-06
Applicant: 한국전자통신연구원
IPC: C03C3/112
CPC classification number: C03C3/11 , C03C3/06 , C03C4/0071 , C03C13/046
Abstract: PURPOSE: Provided are thulium ion(Tm3+)-doped silicate glass excellent in fluorescence emission at 1.4micrometer, durability and water resistance, formation of optical waveguides, and connectivity properties of transmission optical fiber. CONSTITUTION: The Tm3+ doped silicate glass is characterized by doping 0.01-1mol% of Tm3+ ion to a glass composition consisting of 65-95mol% of SiO2, metal(II) oxides containing one or more of ZnO, BaO, SrO and PbO, 1-15mol% of metal(IV) oxide containing one or two of SnO2 and TiO2, wherein 3-30mol% of oxygen(O) in the glass composition is substituted for fluorine(F). Also, 0.5-5mol% of at least one selected from K2O, Rb2O3 and Cs2O, and 1-15mol% of one or two of In2O3 and Sb2O3 are added to the above glass composition. The resultant silicate glass is used for laser resonator, optical fiber laser, optical fiber amplifier, and planar waveguide optical amplifier.
Abstract translation: 目的：提供在1.4微米的荧光发射优异的ium离子（Tm3 +）掺杂的硅酸盐玻璃，耐久性和耐水性，光波导的形成和透射光纤的连通性。 构成：Tm3 +掺杂的硅酸盐玻璃的特征在于将0.01-1mol％的Tm 3+离子掺入到由65-95mol％的SiO 2，含有一种或多种ZnO，BaO，SrO和PbO，1的金属（II）氧化物组成的玻璃组合物中 -15mol％的含有一种或两种SnO 2和TiO 2的金属（IV）氧化物，其中玻璃组合物中的3-30mol％的氧（O）代替氟（F）。 此外，向上述玻璃组合物中加入0.5〜5摩尔％的选自K2O，Rb2O3和Cs2O中的至少一种，以及1-15mol％的In2O3和Sb2O3中的一种或两种。 所得的硅酸盐玻璃用于激光谐振器，光纤激光器，光纤放大器和平面波导光放大器。
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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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