公开(公告)号：WO2012111959A3

公开(公告)日：2012-11-29

申请号：PCT/KR2012001104

申请日：2012-02-14

Applicant: LS CABLE LTD ,  YANG EUN-JEONG ,  PARK JI-SANG

Inventor： YANG EUN-JEONG ,  PARK JI-SANG

IPC: G02B6/028

CPC classification number: G02B6/03694 ,  G02B6/02395 ,  G02B6/03633 ,  G02B6/443

Abstract: Provided is a bend-insensitive optical fiber including a core centered at the optical fiber, a cladding surrounding the core and having a lower refractive index than the core, a coating layer surrounding the cladding, and a region formed in the cladding and having a lower refractive index than the cladding, wherein the coating layer has a multilayered structure and a total outer diameter of 240 ? or less, and a bend-insensitive optical cable comprising the same.

Abstract translation: 提供了一种弯曲不敏感光纤，其包括以光纤为中心的芯，包围芯并且具有比芯更低的折射率的包层，围绕包层的涂层以及形成在包层中的具有较低的折射率的区域 折射率高于包层，其中涂层具有多层结构，总外径为240〜 或更小，以及包括该弯曲不敏感光缆。

公开(公告)号：WO2010095892A3

公开(公告)日：2010-11-25

申请号：PCT/KR2010001054

申请日：2010-02-19

Applicant: LS CABLE LTD ,  PARK JI-SANG ,  PARK LAE-HYUK ,  SOHN SOON-IL ,  SHIN HYUNG-SOO ,  KIM JI-SUNG ,  YOOK TAE-KYUNG ,  PI JOONG-HO

Inventor： PARK JI-SANG ,  PARK LAE-HYUK ,  SOHN SOON-IL ,  SHIN HYUNG-SOO ,  KIM JI-SUNG ,  YOOK TAE-KYUNG ,  PI JOONG-HO

IPC: C03B37/02 ,  G02B6/00

CPC classification number: C03B37/02718 ,  C03B2205/61

Abstract: Disclosed is an optical fiber cooling apparatus and method used in an optical fiber drawing process, which measures an outer diameter of a coated optical fiber indicating its coating condition and controls a feeding amount and a recovery amount of a coolant depending on the outer diameter, thereby ensuring uniform coating of the optical fiber, and which can reduce a usage amount of the coolant used to cool an optical fiber by increasing a recovery amount of the coolant even though the coolant was fed in small quantities, and of which configuration is simple, resulting in reduced facility cost.

Abstract translation: 公开了一种用于光纤拉制过程中的光纤冷却设备和方法，其测量涂覆光纤的外径以指示其涂覆状态并由此根据外径控制冷却剂的进给量和回收量，由此 确保光纤的均匀涂覆，并且即使冷却剂少量供给也可以通过增加冷却剂的回收量来减少用于冷却光纤的冷却剂的使用量，并且其结构简单 降低设备成本。

公开(公告)号：WO2004026779A1

公开(公告)日：2004-04-01

申请号：PCT/KR2003/000387

申请日：2003-02-26

Applicant: LG CABLE LTD. ,  LEE, Chan-Joo ,  SON, Soon-Il ,  PARK, Ji-Sang

Inventor： LEE, Chan-Joo ,  SON, Soon-Il ,  PARK, Ji-Sang

IPC: C03B37/018

CPC classification number: C03B37/01853 ,  C03B37/01815 ,  C03B2201/04 ,  C03B2201/075 ,  Y02P40/57

Abstract: Disclosed is a method for fabricating an optical fiber preform using a double torch in MCVD, which includes a first process of heating a quartz tube (10) at a temperature lower than a sintering temperature by using a first torch (21) with putting reaction gas, oxygen gas and dehydration gas into the tube so that soot particles are generated and deposited, and heating the tube to a predetermined temperature by using a second torch (22) spaced apart from the first torch after the first torch (21) passes so that moisture in the soot particles is removed; and a second process of conducting dehydration for removing moisture in the soot particles by use of the first torch (21) again, and heating the tube above a sintering temperature by using the second torch (22) so that the soot particles free from moisture are vitrified.

Abstract translation: 公开了一种使用MCVD中的双炬制造光纤预制件的方法，该方法包括通过使用第一炬（21）将石英管（10）加热至低于烧结温度的第一工序， ，氧气和脱水气体进入管中，从而产生并沉积烟灰颗粒，并且在第一焊炬（21）通过之后使用与第一炬间隔开的第二炬（22）将管加热到预定温度，使得 除去烟灰颗粒中的水分; 以及再次通过使用第一炬（21）进行脱水以除去烟灰颗粒中的水分的第二过程，并且通过使用第二炬（22）将管加热到高于烧结温度，使得没有水分的烟灰颗粒是 玻璃化。

公开(公告)号：WO2010093187A3

公开(公告)日：2010-10-21

申请号：PCT/KR2010000887

申请日：2010-02-11

Applicant: LS CABLE LTD ,  PARK JI-SANG ,  PARK LAE-HYUK ,  SOHN SOON-IL ,  SHIN HYUNG-SOO ,  YOOK TAE-KYUNG ,  PI JOONG-HO

Inventor： PARK JI-SANG ,  PARK LAE-HYUK ,  SOHN SOON-IL ,  SHIN HYUNG-SOO ,  YOOK TAE-KYUNG ,  PI JOONG-HO

IPC: G02B6/036 ,  G02B6/028

CPC classification number: G02B6/0365

Abstract: A method for manufacturing a trench-type optical fiber with excellent bending loss characteristics includes: (a) forming a core and a first clad layer by means of deposition; (b) preparing a tube containing hydroxyl (OH ) impurities not exceeding a predetermined level, and joining the tube around the first clad layer by means of over-cladding to form a second clad layer; and (c) forming a third clad layer around the second clad layer.

Abstract translation: 制造具有优异弯曲损耗特性的沟槽型光纤的方法包括：（a）通过沉积形成芯和第一覆层; （b）制备含有不超过预定水平的羟基（OH）杂质的管，并且通过外包层将所述管围绕所述第一包覆层接合以形成第二覆层; 和（c）在第二包覆层周围形成第三覆层。

公开(公告)号：WO2009099281A4

公开(公告)日：2010-01-28

申请号：PCT/KR2009000422

申请日：2009-01-29

Applicant: LS CABLE LTD ,  YOOK TAE-KYOUNG ,  PARK LAE-HYUK ,  PARK JI-SANG ,  SOHN SOON-IL ,  SHIN HYUNG-SOO

Inventor： YOOK TAE-KYOUNG ,  PARK LAE-HYUK ,  PARK JI-SANG ,  SOHN SOON-IL ,  SHIN HYUNG-SOO

IPC: G02B6/00

CPC classification number: G02B6/3809 ,  G01M11/336 ,  G02B6/362 ,  G02B6/3636 ,  G02B6/3652

Abstract: The present invention relates to an optical fiber connecting device and an optical fiber quality measuring system using same. The optical fiber quality measuring system of the present invention includes a measuring unit for measuring optical fiber quality including PMD (Polarization Mode Dispersion) or optical loss of optical fiber; a connecting optical fiber including a first optical fiber connected to a transmitter end of the measuring unit and a second optical fiber connected to a receiver end of the measuring unit; an objective optical fiber connected to the first optical fiber and the second optical fiber such that optical quality of the objective optical fiber can be measured by the measuring unit; and a connector for physically and optically connecting the connecting optical fiber and the objective optical fiber. The connector includes a vacuum pump for generating vacuum pressure; and a contact retention unit for supporting the connecting optical fiber and the objective optical fiber which are uncoated and connected to each other, and retaining the contact state by sucking the connecting optical fiber and the objective optical fiber through the use of the vacuum pressure generated from the vacuum pump. The vacuum connection system of the present invention has a connection setting time shorter than that of a mechanical connection system and is suitable for use in the mass-produced optical fiber industry.

Abstract translation: 本发明涉及一种光纤连接装置和使用该光纤连接装置的光纤质量测量系统。 本发明的光纤质量测量系统包括：用于测量包括PMD（偏振模色散）或光纤损耗的光纤质量的测量单元; 连接光纤，包括连接到测量单元的发射器端的第一光纤和连接到测量单元的接收器端的第二光纤; 连接到第一光纤和第二光纤的物镜光纤，使得可以通过测量单元测量物镜光纤的光学质量; 以及用于物理和光学连接连接光纤和物镜光纤的连接器。 连接器包括用于产生真空压力的真空泵; 以及接触保持单元，其用于支撑未涂覆并连接的连接光纤和物镜光纤，并且通过使用从...产生的真空压力吸取连接光纤和物镜光纤来保持接触状态 真空泵。 本发明的真空连接系统具有比机械连接系统短的连接设定时间，适用于批量生产的光纤行业。

公开(公告)号：WO2010093187A2

公开(公告)日：2010-08-19

申请号：PCT/KR2010/000887

申请日：2010-02-11

Applicant: LS CABLE LTD. ,  PARK, Ji-Sang ,  PARK, Lae-Hyuk ,  SOHN, Soon-Il ,  SHIN, Hyung-Soo ,  YOOK, Tae-Kyung ,  PI, Joong-Ho

Inventor： PARK, Ji-Sang ,  PARK, Lae-Hyuk ,  SOHN, Soon-Il ,  SHIN, Hyung-Soo ,  YOOK, Tae-Kyung ,  PI, Joong-Ho

IPC: G02B6/036 ,  G02B6/028

CPC classification number: G02B6/0365

Abstract: A method for manufacturing a trench-type optical fiber with excellent bending loss characteristics includes: (a) forming a core and a first clad layer by means of deposition; (b) preparing a tube containing hydroxyl (OH ) impurities not exceeding a predetermined level, and joining the tube around the first clad layer by means of over-cladding to form a second clad layer; and (c) forming a third clad layer around the second clad layer.

Abstract translation: 用于制造具有优异弯曲损耗特性的沟槽型光纤的方法包括：（a）通过沉积形成芯和第一包层; （b）制备含有不超过预定水平的羟基（OH）杂质的管，并通过上包层将管围绕第一包层接合以形成第二包层; 和（c）在第二覆盖层周围形成第三覆盖层。

公开(公告)号：WO2004063104A1

公开(公告)日：2004-07-29

申请号：PCT/KR2003/002668

申请日：2003-12-05

Applicant: LG CABLE LTD. ,  KIM, Jae-Sun ,  PARK, Ji-Sang ,  PARK, Lae-Hyuk

Inventor： KIM, Jae-Sun ,  PARK, Ji-Sang ,  PARK, Lae-Hyuk

IPC: C03B37/018

CPC classification number: C03B37/018 ,  C03B37/01807

Abstract: A modified chemical vapor deposition (MCVD) device for making an optical fiber preform is disclosed. The MCVD device includes a quartz tube and its junctions, a bubbler system for generating reaction gas to be supplied to the quartz tube, and a rotary connector for interfacing the bubbler system to a main shaft of the lathe supporting the quartz tube. The device isolates the quartz tube and its junctions, the bubbler system and the rotary connector from external atmosphere to keep the isolated area to be under the inert gas condition, thereby preventing moisture or hydrogen components from penetrating into the quarts tube from the external atmosphere.

Abstract translation: 公开了一种用于制造光纤预制棒的改进的化学气相沉积（MCVD）装置。 MCVD装置包括石英管及其连接点，用于产生供应到石英管的反应气体的起泡器系统，以及用于将起泡器系统与支撑石英管的车床主轴接合的旋转连接器。 该装置将石英管及其接头，起泡器系统和旋转连接器从外部大气隔离，以将隔离区域保持在惰性气体条件下，从而防止水分或氢气成分从外部大气渗入石英管。

公开(公告)号：WO2004043870A1

公开(公告)日：2004-05-27

申请号：PCT/KR2003/002209

申请日：2003-10-21

Applicant: LG CABLE LTD. ,  JANG, Ki-Wan ,  LEE, Chan-Joo ,  PARK, Ji-Sang ,  SON, Soon-Il ,  KWON, Young-Il

Inventor： JANG, Ki-Wan ,  LEE, Chan-Joo ,  PARK, Ji-Sang ,  SON, Soon-Il ,  KWON, Young-Il

IPC: C03B37/018

CPC classification number: C03B37/01228 ,  C03B37/01446 ,  C03B37/01853 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/28 ,  C03B2201/31 ,  C03C25/6208 ,  C03C25/64

Abstract: A method for manufacturing an optical fiber preform including a dehydration process by photochemical reaction is provided. The method performs forming a clad and a core according to a predetermined refractive index profile by repeated deposition and sintering of soot particles by means of oxidation of soot generation gas, and a dehydration step for removing moisture and hydroxyl groups from a soot deposition region by means of photochemical reaction is executed between the deposition and sintering. The dehydration step activates dehydration gas into ionic or atomic state by irradiating light, in a wavelength range capable of inducing activation of the dehydration gas, from light source to the dehydration gas including chlorine and supplied to the soot deposition region, and then adsorbs the activated dehydration gas onto surface of the soot in order to induce dehydration reaction with moisture or hydroxyl groups.

Abstract translation: 提供了一种通过光化学反应制造包括脱水过程的光纤预制件的方法。 该方法通过烟灰发生气体的氧化反复沉积和烧结烟灰颗粒，根据预定的折射率分布形成包层和芯，以及通过手段从烟灰沉积区域除去水分和羟基的脱水步骤 在沉积和烧结之间进行光化学反应。 脱水步骤通过在能够引起脱水气体的激活的波长范围内从光源向包括氯的脱水气体照射光并将其供应到烟灰沉积区域，将脱水气体激活成离子或原子状态，然后吸附活化的 将烟气脱气到烟灰表面，以引起与水分或羟基的脱水反应。

公开(公告)号：WO2012111959A2

公开(公告)日：2012-08-23

申请号：PCT/KR2012/001104

申请日：2012-02-14

Applicant: LS CABLE LTD. ,  YANG, Eun-Jeong ,  PARK, Ji-Sang

Inventor： YANG, Eun-Jeong ,  PARK, Ji-Sang

IPC: G02B6/028

CPC classification number: G02B6/03694 ,  G02B6/02395 ,  G02B6/03633 ,  G02B6/443

Abstract: Provided is a bend-insensitive optical fiber including a core centered at the optical fiber, a cladding surrounding the core and having a lower refractive index than the core, a coating layer surrounding the cladding, and a region formed in the cladding and having a lower refractive index than the cladding, wherein the coating layer has a multilayered structure and a total outer diameter of 240 ㎛ or less, and a bend-insensitive optical cable comprising the same.

Abstract translation: 提供了一种弯曲不敏感光纤，包括以光纤为中心的纤芯，围绕纤芯并具有比纤芯低的折射率的包层，围绕包层的涂层，以及区域 形成在包层中并且具有比包层低的折射率，其中涂层具有多层结构并且总外径为240或更小，以及包括该包层的弯曲不敏感光缆。

公开(公告)号：WO2010095892A2

公开(公告)日：2010-08-26

申请号：PCT/KR2010/001054

申请日：2010-02-19

Applicant: LS CABLE LTD. ,  PARK, Ji-Sang ,  PARK, Lae-Hyuk ,  SOHN, Soon-Il ,  SHIN, Hyung-Soo ,  KIM, Ji-Sung ,  YOOK, Tae-Kyung ,  PI, Joong-Ho

Inventor： PARK, Ji-Sang ,  PARK, Lae-Hyuk ,  SOHN, Soon-Il ,  SHIN, Hyung-Soo ,  KIM, Ji-Sung ,  YOOK, Tae-Kyung ,  PI, Joong-Ho

IPC: C03B37/02 ,  G02B6/00

CPC classification number: C03B37/02718 ,  C03B2205/61

Abstract: Disclosed is an optical fiber cooling apparatus and method used in an optical fiber drawing process, which measures an outer diameter of a coated optical fiber indicating its coating condition and controls a feeding amount and a recovery amount of a coolant depending on the outer diameter, thereby ensuring uniform coating of the optical fiber, and which can reduce a usage amount of the coolant used to cool an optical fiber by increasing a recovery amount of the coolant even though the coolant was fed in small quantities, and of which configuration is simple, resulting in reduced facility cost.

Abstract translation: 公开了一种光纤拉制工艺中使用的光纤冷却装置和方法，其测量涂覆光纤的外径，指示其涂覆状态，并根据外径控制冷却剂的进料量和回收量，从而 确保光纤的均匀涂覆，并且通过增加冷却剂的回收量来减少用于冷却光纤的冷却剂的使用量，即使冷却剂被少量进料，并且其结构简单，导致 降低设备成本。