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公开(公告)号：KR100503420B1
公开(公告)日：2005-07-22
申请号：KR1020030029357
申请日：2003-05-09
Applicant: 한국전자통신연구원
IPC: C03C3/32
Abstract: 희토류 원소를 첨가한 광섬유 증폭기용 셀레나이드 유리 조성물을 제공한다. 상기 광섬유 증폭기용 셀레나이드 유리 조성물은 희토류 원소가 첨가된 게르마늄-안티몬-셀레늄이나, 희토류 원소가 첨가된 게르마늄-안티몬-갈륨-셀레늄으로 이루어질 수 있다. 상기 게르마늄, 안티몬 및 셀레늄의 최적 함량은 각각 몰%를 단위로 18≤게르마늄≤32, 8≤안티몬≤17, 58≤셀레늄≤72이다. 상기 게르마늄, 안티몬, 갈륨 및 셀레늄의 최적 함량은 각각 몰% 단위로 23≤게르마늄≤32, 3≤안티몬≤12, 2≤갈륨≤7, 53≤셀레늄≤ 62이다. 상기 희토류 원소는 프라세오디뮴, 디스프로슘, 어븀, 툴륨, 홀뮴, 터븀 또는 네오디뮴이고, 상기 희토류 원소는 하나 이상 포함될 수 있다. 상기 광섬유 증폭기용 셀레나이드 유리 조성물은 1.6㎛ 대역의 광섬유 증폭기로 이용될 수 있고, 열적 안정성이 우수하여 저손실 광섬유로 용이하게 제작될 수 있다.
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公开(公告)号：KR1020040106904A
公开(公告)日：2004-12-18
申请号：KR1020030079906
申请日：2003-11-12
Applicant: 한국전자통신연구원
IPC: H04B10/291
CPC classification number: H01S5/50 , H01S5/005 , H01S5/0064 , H01S5/0078 , H01S5/5045 , H01S5/5072
Abstract: PURPOSE: A gain-clamped optical amplifier is provided to realize a regular gain character without regard to a change in strength of input signal light. CONSTITUTION: An optical fiber bragg grating(12) is installed at an input optical fiber(11). An isolator(14) is installed at an output optical fiber(13). An optical amplifier(15) is placed between the optical fiber bragg grating(12) and the isolator(14) for amplifying an input optical signal or output optical signal. A spontaneously emitted light of the optical amplifier(15) emitted to the input optical fiber(11) and the output optical fiber(13) is reflected to the optical amplifier(15) for amplifying the reflected light.
Abstract translation: 目的：提供增益钳位光放大器以实现常规增益字符，而不考虑输入信号光强度的变化。 构成：光纤布拉格光栅（12）安装在输入光纤（11）处。 隔离器（14）安装在输出光纤（13）处。 光放大器（15）放置在光纤布拉格光栅（12）和隔离器（14）之间，用于放大输入光信号或输出光信号。 发射到输入光纤（11）和输出光纤（13）的光放大器（15）的自发发射的光被反射到用于放大反射光的光放大器（15）。
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公开(公告)号：KR100462470B1
公开(公告)日：2004-12-17
申请号：KR1020020031591
申请日：2002-06-05
Applicant: 한국전자통신연구원
IPC: G02B6/293
CPC classification number: G02B6/12019 , G02B2006/121 , G02F1/065 , G02F2001/212 , G02F2203/055 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0032 , H04Q2011/0035
Abstract: A wavelength selector to be used in WDM networks is provided. The wavelength selector is composed of a circulator, an arrayed waveguide grating (AWG), which is used for wavelength demultiplexing and multiplexing part, and an electro-optical (EO) switching part. The input light after the circulator is demultiplexed through the AWG part and each channel of the demultiplexed lights is modulated and reflected through the EO switching part which is formed as Michelson type interferometer with mirror parts returning the light to the AWG. The modulated and reflected light is multiplexed through the AWG and the direction is changed to the output through the circulator.
Abstract translation: 提供了用于WDM网络的波长选择器。 波长选择器由循环器，用于波长解复用部分的阵列波导光栅（AWG）和电光（EO）切换部分组成。 循环器之后的输入光通过AWG部分被解复用，并且解复用光的每个通道被调制并且通过EO开关部件反射，EO开关部件被形成为迈克尔逊型干涉仪，其中镜子部件将光返回到AWG。 调制后的和反射的光通过AWG进行复用，方向通过循环器转换为输出。
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公开(公告)号：KR1020040032495A
公开(公告)日：2004-04-17
申请号：KR1020020061670
申请日：2002-10-10
Applicant: 한국전자통신연구원
IPC: G02B6/02
CPC classification number: C03C13/046 , G02B6/02 , G02B6/02261 , G02B6/02271 , H01S3/0941 , H01S3/1691 , H01S3/1695 , H01S3/176 , H01S3/302
Abstract: PURPOSE: An optical fiber for transmission is provided to control each refractive index of a core and a cladding, maintain a desired degree of dispersion and low non-linearity, and obtain a high Raman gain coefficient by adding GeO2 to a core and a cladding of the optical fiber and doping F thereto. CONSTITUTION: An optical fiber for transmission includes a core and a cladding, which are formed with SiO2. The SiO2 of the core and the cladding is doped with GeO2 and F. The SiO2 of the core includes GeO2 of 0.1 to 3 mol percent and F of 0.05 to 1.5 mol percent. The GeO2 and the F are doped into the SiO2 within a predetermined range in order to increase a refractive index of the core as much as 0.003 to 0.015 and reduce the refractive index of the cladding as much as 0.0 to 0.003.
Abstract translation: 目的：提供用于传输的光纤以控制芯和包层的每个折射率，保持期望的分散度和低非线性，并且通过将GeO 2添加到芯和包层中获得高拉曼增益系数 光纤并向其掺杂F。 构成：用于透射的光纤包括由SiO 2形成的芯和包层。 芯和SiO2的SiO 2掺杂有GeO 2和F。核的SiO 2包括0.1至3mol％的GeO 2和0.05至1.5mol％的F。 GeO 2和F在预定范围内掺杂到SiO 2中，以便使芯的折射率提高到0.003至0.015，并将包层的折射率降低至0.0至0.003。
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公开(公告)号：KR100422372B1
公开(公告)日：2004-03-10
申请号：KR1020010017918
申请日：2001-04-04
Applicant: 한국전자통신연구원
IPC: H04B10/2581
CPC classification number: G02B6/305 , G02B2006/12173 , G02B2006/12176 , G02B2006/12195
Abstract: The present invention relates to a multi-channel wavelength division multiplexer/demultiplexer capable of efficiently coupling or separating wavelength multiplexed optical signals. The multi-channel wavelength division multiplexer/demultiplexer according to the present invention comprises a band splitting means for splitting the band of wavelength multiplexed optical signals (lambd1~lambdn) into M bands, a demultiplexing means for separating each band split by the band splitting means into a plurality of single wavelength channels, and a multiplexing means for coupling the single wavelength channels separated by the demultiplexing means. Therefore, the present invention can significantly increase the number of available wavelength channels while minimizing optical loss of wavelength channels.
Abstract translation: 本发明涉及能够高效地耦合或分离波长复用光信号的多信道波分复用器/解复用器。 根据本发明的多信道波分复用器/信号分离器包括一个频带分割装置，用于将波长复用光信号（λdd1〜λdn）的频带分成M个频带;一个解复用装置，用于分离由频带分割装置分割的每个频带 分成多个单波长信道，以及多路复用装置，用于耦合由多路分解装置分离的单个波长信道。 因此，本发明可以显着增加可用波长信道的数量，同时最小化波长信道的光损耗。
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Patent Agency Ranking
公开(公告)号：KR100403673B1
公开(公告)日：2003-10-30
申请号：KR1020010078667
申请日：2001-12-12
Applicant: 한국전자통신연구원
IPC: G02B6/00
CPC classification number: G02F1/3558 , C03C25/1063 , C03C25/22 , C03C25/52 , G02B6/02 , G02B6/2826 , G02F1/0115
Abstract: 광섬유 표면 상의 상호 절연된 두 도전막 형성방법이 개시된다. 본 발명에서는, 기판에 형성된 그루브에 광섬유를 접착한 다음, 사진식각공정으로 광섬유 상에 도전막이 형성될 부위만 개구하는 포토레지스트 패턴을 형성한다. 포토레지스트 패턴 상에 도전막을 형성한 다음 리프트 오프하면, 그루브에서 광섬유가 분리되는 동시에 포토레지스트 패턴 및 포토레지스트 패턴 상에 형성된 도전막이 제거되고, 광섬유 표면에는 원하는 패턴대로 형성된 도전막만 남는다. 도전막이 형성된 면의 반대면에 대해서도 위와 같은 방법으로 도전막을 형성하여 광섬유 상에 상호 절연된 두 도전막을 형성할 수 있다. 본 발명이 개시하는 방법에 따라 광섬유 상에 도전막을 형성한 다음, 이를 이용하여 폴링을 하게 되면, 변조기, 가변필터 및 스위치와 같은 광전소자, 전기장 센서, 및 주파수 변환기나 분산 보상기와 같은 비선형 광섬유 광학 소자에 널리 응용될 수 있다.
Abstract translation: 提供了一种在光纤表面上形成彼此电隔离的两个导电膜的方法。 根据该方法，使用光刻胶作为胶将光纤附着到硅衬底上的凹槽中。 通过光刻工艺形成光纤表面上的导电膜的光致抗蚀剂图案。 在图案化区域上湿法蚀刻掉一些量的纤维，这是提升沉积在不必要区域上的金属膜所需的，在晶片的整个区域上沉积金属膜。 通过加热的剥离液去除光刻胶，仅在光纤的图案区域上留下金属薄膜，并将光纤从晶片的凹槽中分离出来。光纤另一侧的第二金属薄膜可以通过与 第一金属膜除了纤维的沉积表面必须颠倒地连接到凹槽之外。 使用两个导电膜的极化光纤可应用于制造光电和光纤通信设备中使用的元件，例如调制器，可调谐滤波器和开关，电场传感器以及非线性光纤设备，例如变频器 ，一个色散补偿器。
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公开(公告)号：KR100392367B1
公开(公告)日：2003-07-22
申请号：KR1020000065644
申请日：2000-11-06
Applicant: 한국전자통신연구원
CPC classification number: G02F1/383 , G02F1/3558
Abstract: The present invention relates to the fabrication of an optical device; and, more particularly to an electrode for fabricating periodically poled optical fibers and a fabrication method of periodically poled optical fibers using the electrode. To fabricate periodically poled optical fibers for improving the effect of three wave mixing in accordance with the second-order nonlinear optical phenomenon, the periodically poled optical fibers of the present invention is formed by using one or more electrodes with holes or grooves for a period satisfying the quasi phase matching condition between light waves in use. Also, using the electrodes described above, one or more holes or one or more grooves are formed on the surface of the optical fiber around the core in its length direction, and thereby make an optical fiber poled periodically.
Abstract translation: 本发明涉及光学器件的制造; 更具体地涉及用于制造周期性极化光纤的电极以及使用该电极的周期极化光纤的制造方法。 为了根据二阶非线性光学现象制造用于改善三波混频效应的周期性极化光纤，本发明的周期性极化光纤是通过使用一个或多个带有孔或凹槽的电极， 使用中的光波之间的准相位匹配条件。 而且，使用上述电极，在芯的长度方向上的光纤表面上形成一个或多个孔或一个或多个槽，从而使光纤周期性地极化。
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公开(公告)号：KR1020030035123A
公开(公告)日：2003-05-09
申请号：KR1020010067051
申请日：2001-10-30
Applicant: 한국전자통신연구원
IPC: H01S3/067
Abstract: PURPOSE: An optical fiber laser resonator is provided, which is used as a pumping source of a Tm-doped fiber amplifier of a non-silica family. CONSTITUTION: The first optical fiber(20) is connected to a laser diode(10) by a pig tailed form, and the second optical fiber(40) is connected by a different structure from the first optical fiber. The third optical fiber(31) consists of a cladding(42) and a core(41) where a grating is engraved and is configured to connect both ends of the first and second optical fibers by a tapering method. The first optical fiber is an SMA cable, the second optical fiber is a dual clad fiber which consists of a Yb-doped core and a cladding. GeO2 is doped in a core where the grating of the third optical fiber is engraved. A silica(32) as a packing means is configured such that an air gap is formed at the outside of the third optical fiber so that light passing through the cladding of the third optical fiber progresses smoothly.
Abstract translation: 目的：提供一种光纤激光谐振器，用作非二氧化硅族的Tm掺杂光纤放大器的泵浦源。 构成：第一光纤（20）通过猪尾形式连接到激光二极管（10），并且第二光纤（40）通过与第一光纤不同的结构连接。 第三光纤（31）由包层（42）和芯（41）组成，其中光栅被雕刻并且被配置为通过锥形方法连接第一和第二光纤的两端。 第一光纤是SMA电缆，第二光纤是由掺杂Yb的芯和包层组成的双包层光纤。 将GeO 2掺杂在其中雕刻第三光纤的光栅的芯中。 作为填充装置的二氧化硅（32）被构造成使得在第三光纤的外侧形成气隙，使得穿过第三光纤的包层的光平滑地进行。
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公开(公告)号：KR100381009B1
公开(公告)日：2003-04-23
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：提供掺铒离子（Er3 +）和可能的GeO2和In2O3的亚碲酸盐玻璃组合物，其除了传统亚碲酸盐玻璃的优点之外还提高光放大器的980nm区域的泵浦效率并减少光纤生产中的结晶。 构成：铒掺杂亚碲酸盐玻璃组合物是通过在含有40-80摩尔％TeO 2的碲酸盐基质玻璃中加入0.05-5摩尔％的Er离子，0-20摩尔％的GeO 2和/或0-10摩尔％的In 2 O 3， -20摩尔％的B 2 O 3，5-30摩尔％的金属（2+）氧化物和1-15摩尔％的碱金属氧化物，其中所述金属为选自Mg，Ca，Sr，Ba，Zn 和Pb，碱金属是选自Li，Na中的至少一种。 K. Rb和Cs。
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公开(公告)号：KR1020030015571A
公开(公告)日：2003-02-25
申请号：KR1020010049358
申请日：2001-08-16
Applicant: 한국전자통신연구원
IPC: G02B6/00
CPC classification number: H01S3/06758 , H01S3/0677 , H01S3/094015 , H01S3/094023
Abstract: PURPOSE: A two-stage long wavelength band erbium-doped fiber amplifier device is provided, which improves amplification performance by obtaining strong amplified spontaneous emission(ASE) using a reflective optical fiber amplifier as one-step amplifier. CONSTITUTION: According to the two-stage long wavelength band erbium-doped fiber amplifier device, the first amplification unit amplifies forward amplified spontaneous emission(ASE) again by a gain medium by reflecting the forward amplified spontaneous emission as to the forward amplified spontaneous emission and backward amplified spontaneous emission generated by a pump light source projected through a wavelength division multiplexing(WDM). And the second amplification unit receives the forward amplified spontaneous emission and the backward amplified spontaneous emission amplified in the first amplification unit through an optical circulator(100) and then amplifies a long wavelength band signal light using them as a pumping light source.
Abstract translation: 目的：提供两级长波长带掺铒光纤放大器，通过使用反射光纤放大器作为一步放大器获得强放大自发辐射（ASE）来提高放大性能。 构成：根据两级长波长带掺铒光纤放大器装置，第一放大单元通过增益介质再次放大正向放大自发辐射（ASE），反映正向放大自发发射与正向放大自发发射， 由通过波分复用（WDM）投影的泵浦光源产生的向后放大的自发辐射。 并且第二放大单元通过光环行器（100）接收在第一放大单元中放大的正向放大自发发射和反向放大自发辐射，然后使用它们作为泵浦光源放大长波长带信号光。
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