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    • 2. 发明授权
    • 보조 버너를 사용한 광섬유 모재 제조 방법
    • 使用辅助燃烧器的光纤基材的制造方法
    • KR100624252B1
    • 2006-09-19
    • KR1020050026772
    • 2005-03-30
    • 주식회사 엘에스
    • 서영범강병철이동욱
    • C03B37/018
    • 본 발명은 주 버너 및 보조 버너를 이용하여 MCVD 공법에 따라 광섬유 모재 튜브의 내벽에 증착층을 형성시키는 광섬유 모재 제조 방법이다. 본 발명에 따른 광섬유 모재 제조 방법은, 주 버너가 광섬유 모재 튜브를 가열하면서 튜브의 길이 방향으로 이동함에 따라, 보조 버너를 사용하여 주 버너에 의해 가열이 시작된 지점으로부터 가열이 진행된 소정지점까지의 광섬유 모재 튜브의 소정 구간을 재 가열하여 소정 구간에서의 냉각에 따른 열응력의 발생을 방지하는 것을 특징으로 한다. 본 발명에 의하면, 모재 튜브 내부의 크랙 또는 균열을 방지함으로써 제조되는 광섬유 모재의 불량률을 감소시킬 수 있다.
      MCVD, 주 버너, 열응력
    • 本发明是用于制造光纤预制件,以在光纤预制件的管按照使用主燃烧器和辅助燃烧器的MCVD法内壁上的沉积层的方法。 制造根据本发明的光纤预制件的方法,所述主燃烧器是光纤预制件作为管同时加热在管的纵向方向上的运动,光纤到一预定点时,加热从加热开始的点通过使用二次燃烧器的主燃烧器进行 并且,预先对基材管的预定部分进行再加热,以防止由于预定部分中的冷却而产生热应力。 根据本发明,它能够减少通过防止裂纹或管内的母材的裂纹的光纤预制件的缺陷率被产生。
    • 3. 发明公开
    • MCVD 공정용 수트 제거장치 및 이를 위한 수트 제거봉
    • MCVD工艺,烟灰除去设备并取出烟灰杆为此对
    • KR1020060061950A
    • 2006-06-09
    • KR1020040100581
    • 2004-12-02
    • 주식회사 엘에스
    • 서영범배상준이동욱
    • C03B37/012
    • C03B37/01846
    • 본 발명에 따른 수트 제거장치는, 광섬유 프리폼 제조를 위한 MCVD 공정시 석영튜브로부터 배출되는 실리카 수트가 배기용 이너튜브에 적층되는 것을 방지하는 장치로서, 상기 이너튜브의 내벽과 접촉되도록 설치되며, 몸체가 부분적으로 접혀지도록 적어도 하나 이상의 관절이 구비되어 있는 수트 제거봉; 및 상기 이너튜브 내벽의 수트를 긁어내도록 상기 수트 제거봉을 회전시키는 회전수단;을 포함하는 것을 특징으로 한다.
      또한, 본 발명에 의하면, 광섬유 프리폼 제조를 위한 MCVD 공정시 석영튜브로부터 배출되는 실리카 수트가 배기용 튜브에 적층되는 것을 방지하도록 배기용 튜브 내에 설치되는 수트 제거봉에 있어서, 몸체가 부분적으로 접혀지도록 적어도 하나 이상의 관절이 구비되어 상기 배기용 튜브와의 정렬오차를 보상하게 되는 것을 특징으로 하는 수트 제거봉이 제공된다.
      광섬유 프리폼, MCVD, 실리카 수트, 수트 제거봉, 관절, 스크류
    • 根据本发明,为了防止由MCVD过程中,当用于制造光纤预制件的石英管被层压到用于排气内管排出的二氧化硅烟灰的装置烟灰去除装置,被设置成与所述内管的内壁上,身体接触 是这样的折叠部分上设置有在烟灰除去棒的至少一个关节; 和用于naedorok旋转装置刮去所述内管的烟灰内壁用于旋转烟灰除去棒;它其特征在于它包括:a。
    • 4. 发明公开
    • 수정된 화학기상 증착 방법에 의한 광섬유 모재 제조 방법
    • 通过改性化学气相沉积方法制造光纤预制件的方法
    • KR1020040040997A
    • 2004-05-13
    • KR1020030030247
    • 2003-05-13
    • 주식회사 엘에스
    • 홍춘근강병윤이동욱강병철
    • C03B37/018
    • PURPOSE: A method for manufacturing an optical fiber preform is provided to minimize or even prevent the index dip phenomenon generated in the center of an optical fiber core, thereby providing optical fiber with improved optical properties such as bandwidth or polarization mode dispersion by conducting an etching process together with a condensation process, then conducting a closing process. CONSTITUTION: The method for manufacturing an optical fiber preform by means of modified chemical vapor deposition method comprises: a deposition process which forms clad(9)/core(8) deposition layers on the inside wall of a quartz tube; a condensation process in which condensation of the resulted quartz tube is carried out by heating the tube to the softening temperature or more; an etching-condensation process in which the quartz tube is heated to the softening temperature or more while feeding reaction gas for etching into the tube in order to optimize the inner diameter of the tube; a closing process in which the quartz tube of which inner diameter is optimized, is heated to the softening temperature or more to form an optical fiber preform having no inner hole.
    • 目的:提供一种制造光纤预制件的方法,以最小化或甚至防止在光纤芯的中心产生的折射率现象,从而通过进行蚀刻来提供具有改善的光学特性(例如带宽或偏振模色散)的光纤 处理和冷凝过程,然后进行关闭过程。 构成:通过改进的化学气相沉积方法制造光纤预制棒的方法包括:在石英管的内壁上形成包层(9)/芯(8)沉积层的沉积工艺; 通过将管加热到软化温度以上来进行所得到的石英管的冷凝的冷凝工序; 蚀刻冷凝过程,其中为了优化管的内径,将石英管加热至软化温度或更高,同时将用于蚀刻的反应气体供给到管中; 其中内径最优化的石英管被加热到软化温度或更高的封闭过程以形成没有内孔的光纤预制件。
    • 5. 发明授权
    • 분산 및 분산 기울기 보상용 광섬유
    • 분산및분산기울기보상용광섬유
    • KR100401341B1
    • 2003-10-10
    • KR1020010068924
    • 2001-11-06
    • 주식회사 엘에스
    • 박혜영강병윤이동욱김대원
    • G02B6/00
    • PURPOSE: An optical fiber for compensating dispersion and dispersion slope is provided to form the optical fiber for compensating the dispersion and the dispersion slope of a transmission line by using a single mode fiber and a negative dispersion fiber. CONSTITUTION: Cumulative dispersion and a dispersion slope of a wavelength division multiplexed optical transmission system are compensated by performing a compensating process for the cumulative dispersion and the dispersion slope of a transmission line having the cumulative dispersion of 132 ps/nm and the dispersion slope of 0.08480 ps/nm¬2/km. The compensation fiber is characterized in that the dispersion is -132 ps/nm-km and the dispersion slope is -6.78 ps/nm¬2-km. In addition, the compensation fiber is characterized in that the dispersion is -132 ps/nm-km and the dispersion slope is -6.78 ps/nm¬2-km. In addition, the compensation fiber is characterized in that the dispersion is -132 ps/nm-km and the dispersion slope is -6.78 ps/nm¬2-km.
    • 目的:提供一种用于补偿色散和色散斜率的光纤,以形成用于通过使用单模光纤和负色散光纤来补偿传输线的色散和色散斜率的光纤。 构成:通过对具有132ps / nm的累积色散和0.08480的色散斜率的传输线的累积色散和色散斜率进行补偿处理,来补偿波分复用光传输系统的累积色散和色散斜率 PS /纳米&不; 2 /公里。 补偿光纤的特征在于色散为-132ps / nm-km,色散斜率为-6.78ps / nm&2km。 另外,补偿光纤的特征在于色散为-132ps / nm-km,色散斜率为-6.78ps / nm&2km。 另外,补偿光纤的特征在于色散为-132ps / nm-km,色散斜率为-6.78ps / nm&2km。
    • 6. 发明授权
    • 분산 기울기 보상용 광섬유
    • 분산기울기보상용광섬유
    • KR100384900B1
    • 2003-05-23
    • KR1020010018312
    • 2001-04-06
    • 주식회사 엘에스
    • 박혜영이동욱
    • G02B6/00G02B6/02G02B6/028
    • PURPOSE: An optical fiber is provided to compensate for a distribution of transmission line as well as a gradient of the distribution when a single mode optical fiber is employed as the transmission line of wavelength division multiplexing optical transmission system, thereby maintaining the reliability of the system during the transmission of a plurality of signals by reducing an interval of wavelength between each signal for increasing a future transmission capability. CONSTITUTION: An optical fiber for compensating for a distribution gradient of a single mode optical fiber utilizing as a transmission line of wavelength division multiplexing optical transmission system includes a core(1), a first clad(2), a second clad(3), a third clad and a silica clad(4), wherein a distribution is in the range of -120 to -180 and a distribution gradient is in the rage of -0.40-0.70. The width of the core(1) is in the range of 1.09 ± 0.02 μm and a refraction difference of the core(1) is in the range of -0.0202 ± 0.002. The width of the first clad(2) is in the range of 3.39 ± 0.02 μm and a refraction difference of the first clad(2) is in the range of -0.0031 ± 0.0002. The width of the second clad(3) is in the range of 3.29 ± 0.02 μm and a refraction difference of the second clad(3) is in the range of -0.0018 ± 0.0002.
    • 目的:提供一种光纤用于补偿传输线的分布以及在采用单模光纤作为波分复用光传输系统的传输线时的分布梯度,从而保持系统的可靠性 在通过减小每个信号之间的波长间隔来传输多个信号期间用于增加未来传输能力。 用于补偿用作波分复用光传输系统的传输线的单模光纤的分布梯度的光纤包括芯体(1),第一包层(2),第二包层(3),第二包层 第三包层和二氧化硅包层(4),其中分布在-120到-180的范围内,分布梯度处于-0.40-0.70的范围内。 芯部(1)的宽度在1.09和±10毫米的范围内; 0.02微米,芯体(1)的折射率差在-0.0202和±100nm的范围内; 0.002。 第一包层(2)的宽度在3.39& mm范围内; 0.02μm并且第一包层(2)的折射率差在-0.0031和±nm范围内; 0.0002。 第二包层(3)的宽度在3.29& mm范围内; 0.02μm并且第二包层(3)的折射率差在-0.0018和±nm范围内; 0.0002。
    • 7. 发明公开
    • 좁은 간격의 광채널을 이용한 파장분할 다중화 방식의광전송장치용 광섬유
    • 用于WDM(波长段多路复用)光纤发射机的光纤使用NARROW OPTICAL CHANNEL
    • KR1020020016259A
    • 2002-03-04
    • KR1020000049495
    • 2000-08-25
    • 주식회사 엘에스
    • 이권무김대원이동욱김동영정윤철
    • G02B6/00
    • G02B6/03644G02B6/02257G02B6/03627G02B6/03633
    • PURPOSE: An optical fiber for a WDM(Wavelength Division Multiplexing) optical transmitter apparatus using a narrow optical channel is provided, which maximizes a transmission capability per optical fiber, and has an appropriate dispersion as suppressing a four wave mixing and minimizing a cost for dispersion compensation. CONSTITUTION: According to the optical fiber for a WDM optical transmitter apparatus having a channel interval of 50GHz, a dispersion is 7-10 ps/nm-km at a wavelength of 1550nm, and a zero dispersion is below 1450 nm, and a cut-off wavelength is below 1250 nm. And the optical fiber comprises a core having a diameter of d1 and a refractive index of n1 and a cladding made by a silica glass surrounding the core and having a refractive index nc1 smaller than n1. The relative refractive index difference between the core and the cladding is 0.43-0.5%, and the diameter d1 of the core is 5.5-6.0 micrometer.
    • 目的:提供一种使用窄光通道的WDM(波分复用)​​光发射机装置的光纤,其使每根光纤的传输能力最大化,并且具有适当的色散以抑制四波混频并使分散成本最小化 补偿。 构成:根据用于具有50GHz的信道间隔的WDM光发射机装置的光纤,在1550nm的波长下的色散为7〜10ps / nm-km,零色散低于1450nm, 关闭波长低于1250nm。 并且光纤包括直径为d1,折射率为n1的芯和由围绕芯的石英玻璃制成的折射率小于n1的折射率nc1的包层。 芯和包层之间的相对折射率差为0.43-0.5%,芯的直径d1为5.5-6.0微米。
    • 10. 发明公开
    • 수정화학 기상 증착 방법에 있어서 광섬유 모재의 굴절률제어방법 및 상기 방법에 의해 제조된 광섬유
    • 用于控制改性化学气相沉积中的光纤预制件的折射率指数和由该方法制造的光纤的方法
    • KR1020040073171A
    • 2004-08-19
    • KR1020030009162
    • 2003-02-13
    • 주식회사 엘에스
    • 강병철강병윤홍춘근이동욱
    • C03B37/018
    • C03B37/01807
    • PURPOSE: Provided are a method for controlling a refractive index of optical fiber preform in modified chemical vapor deposition(MCVD), which regulates the amount of oxygen and helium in conformity with flow rates of reaction gases injected into quartz tube and thus controls flow rates and internal temperatures of the reaction gases, so as to minimize a fluctuation of refractive index of the optical fiber in the longitudinal direction. CONSTITUTION: The method for manufacturing a basic material of optical fiber having constant refractive index in the longitudinal direction by using MCVD, comprises regulating amounts of oxygen and helium injected into quartz tube(10). The q/Q value(q: total flow rate of reaction gas, Q: flow rate of oxygen gas) expressing the ratio of total reaction gas and oxygen rates in the quartz tube(10) is 1.2-1.4. The flow rate of oxygen is 1000-4000 sccm. The Q/a value(Q: flow rate of oxygen gas, a: thermal diffusivity of the reaction gas) is 4.0-6.0.
    • 目的:提供一种在改进的化学气相沉积(MCVD)中控制光纤预制件的折射率的方法,该方法根据注入石英管的反应气体的流量来调节氧和氦的量,从而控制流速和 反应气体的内部温度,以使光纤在纵向的折射率的波动最小化。 构成:使用MCVD制造长径方向的折射率恒定的光纤基材的方法包括调节注入石英管(10)中的氧和氦的量。 表示石英管(10)中总反应气体和氧气比率的q / Q值(q:反应气体的总流量,Q:氧气的流量)为1.2-1.4。 氧气流量为1000-4000sccm。 Q / a值(Q:氧气流量,a:反应气体的热扩散率)为4.0〜6.0。