公开(公告)号：US07155098B2

公开(公告)日：2006-12-26

申请号：US10502455

申请日：2003-08-20

申请人： Ki-Wan Jang ,  Lae-Hyuk Park ,  Chan-Joo Lee

发明人： Ki-Wan Jang ,  Lae-Hyuk Park ,  Chan-Joo Lee

IPC分类号： G02B6/02

CPC分类号： C03B37/01853 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/28 ,  C03B2201/31 ,  G02B6/02

摘要： Disclosed is a method of manufacturing an optical fiber perform using MCVD including dehydration and dechlorination, which executes the following process repeatedly with changing the composition of soot generation gas according to the refractive index profile, the process including the steps of: forming a soot layer having pores on an inner wall of a deposition tube at a temperature lower than the soot sintering temperature with putting soot generation gas and oxygen gas into the rotating deposition tube; removing hydroxyl groups with keeping the pores by putting dehydration gas into the deposition tube; removing chlorine impurities existing in the soot layer with keeping the pores by putting dehydration gas into the deposition tube; and sintering the soot layer by heating the deposition tube at a temperature over the soot sintering temperature.

摘要翻译： 本发明公开了一种使用包括脱水和脱氯在内的MCVD进行的光纤的制造方法，其通过根据折射率分布改变烟灰发生气体的组成而重复地执行以下处理，该方法包括以下步骤：形成具有 在低于烟灰烧结温度的温度下在沉积管的内壁上的孔，将烟灰产生气体和氧气放入旋转沉积管中; 通过将脱水气体放入沉积管中，保持孔隙去除羟基; 通过将脱水气体放入沉积管中来除去存在于烟灰层中的氯杂质，同时保持孔; 并且通过在超过烟灰烧结温度的温度下加热沉积管来烧结烟灰层。

公开(公告)号：US20050152653A1

公开(公告)日：2005-07-14

申请号：US10502455

申请日：2003-08-20

申请人： Ki-Wan Jang ,  Lae-Hyuk Park ,  Chan-Joo Lee

发明人： Ki-Wan Jang ,  Lae-Hyuk Park ,  Chan-Joo Lee

IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  G02B6/02 ,  G02B6/16

CPC分类号： C03B37/01853 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/28 ,  C03B2201/31 ,  G02B6/02

摘要： Disclosed is a method of manufacturing an optical fiber perform using MCVD including dehydration and dechlorination, which executes the following process repeatedly with changing the composition of soot generation gas according to the refractive index profile, the process including the steps of: forming a soot layer having pores on an inner wall of a deposition tube at a temperature lower than the soot sintering temperature with putting soot generation gas and oxygen gas into the rotating deposition tube; removing hydroxyl groups with keeping the pores by putting dehydration gas into the deposition tube; removing chlorine impurities existing in the soot layer with keeping the pores by putting dehydration gas into the deposition tube; and sintering the soot layer by heating the deposition tube at a temperature over the soot sintering temperature.

摘要翻译： 本发明公开了一种使用包括脱水和脱氯在内的MCVD进行的光纤的制造方法，其通过根据折射率分布改变烟灰发生气体的组成而重复地执行以下处理，该方法包括以下步骤：形成具有 在低于烟灰烧结温度的温度下在沉积管的内壁上的孔，将烟灰产生气体和氧气放入旋转沉积管中; 通过将脱水气体放入沉积管中，保持孔隙去除羟基; 通过将脱水气体放入沉积管中来除去存在于烟灰层中的氯杂质，同时保持孔; 并且通过在超过烟灰烧结温度的温度下加热沉积管来烧结烟灰层。

公开(公告)号：US20080050079A1

公开(公告)日：2008-02-28

申请号：US11630051

申请日：2004-07-07

申请人： Chan-Joo Lee ,  Ki-Wan Jang ,  Young-Beom Seo

发明人： Chan-Joo Lee ,  Ki-Wan Jang ,  Young-Beom Seo

IPC分类号： G02B6/036 ,  C03B37/018

CPC分类号： C03B37/01807 ,  C03B37/01853 ,  C03B2201/075 ,  C03B2201/31 ,  G02B6/03622 ,  G02B6/03694

摘要： Disclosed is a low-attenuation single-mode optical fiber having a photoconductive core and a clad, which shows very low OH concentration in MFD (Mode Field Diameter) region. The optical fiber includes a core positioned at its center for photoconduction, and a dehydrated clad and a base clad which are coated on the clad in order. The dehydrated clad has a substantially identical refractive index to the base clad. A refractive index of the core is greater than those of the dehydrated clad and the base clad. The dehydrated clad has a relatively lower OH concentration than the base clad. The region composed of the core and the dehydrated clad has an MFD region at which OH concentration is less than 0.8 ppb.

摘要翻译： 公开了一种具有光导芯和包层的低衰减单模光纤，其在MFD（模场直径）区域中显示出非常低的OH浓度。 光纤包括位于其中心的用于感光的芯，以及依次涂覆在包层上的脱水包层和基底包层。 脱水包层具有与基底包层基本相同的折射率。 芯的折射率大于脱水包层和基底包层的折射率。 脱水包层的OH浓度比底层包层低。 由核心和脱水包层组成的区域具有OH浓度小于0.8ppb的MFD区域。

公开(公告)号：US07391946B2

公开(公告)日：2008-06-24

申请号：US11630051

申请日：2004-07-07

申请人： Chan-Joo Lee ,  Ki-Wan Jang ,  Young-Beom Seo

发明人： Chan-Joo Lee ,  Ki-Wan Jang ,  Young-Beom Seo

IPC分类号： G02B6/02 ,  C03B37/018

CPC分类号： C03B37/01807 ,  C03B37/01853 ,  C03B2201/075 ,  C03B2201/31 ,  G02B6/03622 ,  G02B6/03694

摘要： Disclosed is a low-attenuation single-mode optical fiber having a photoconductive core and a clad, which shows very low OH concentration in MFD (Mode Field Diameter) region. The optical fiber includes a core positioned at its center for photoconduction, and a dehydrated clad and a base clad which are coated on the clad in order. The dehydrated clad has a substantially identical refractive index to the base clad. A refractive index of the core is greater than those of the dehydrated clad and the base clad. The dehydrated clad has a relatively lower OH concentration than the base clad. The region composed of the core and the dehydrated clad has an MFD region at which OH concentration is less than 0.8 ppb.

摘要翻译： 公开了一种具有光导芯和包层的低衰减单模光纤，其在MFD（模场直径）区域中显示出非常低的OH浓度。 光纤包括位于其中心的用于感光的芯，以及依次涂覆在包层上的脱水包层和基底包层。 脱水包层具有与基底包层基本相同的折射率。 芯的折射率大于脱水包层和基底包层的折射率。 脱水包层的OH浓度比底层包层低。 由核心和脱水包层组成的区域具有OH浓度小于0.8ppb的MFD区域。

公开(公告)号：US20070166040A1

公开(公告)日：2007-07-19

申请号：US11587830

申请日：2005-04-25

申请人： Ki-Wan Jang ,  Ki-Yeul Kim

发明人： Ki-Wan Jang ,  Ki-Yeul Kim

IPC分类号： H04J14/02

CPC分类号： H04J14/0246 ,  G02B6/29361 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/025 ,  H04J14/0282

摘要： Disclosed is an optical transmission system capable of transmitting optical signals of E-band and other bands through one optical fiber. The system includes a first thin film filter for receiving optical signals of E-band and other bands at both sides thereof respectively, and multiplexing the optical signals of both E-band and other bands by selectively transmitting wavelength ranges received at one side, reflecting wavelength ranges received at the other side, and then coupling the optical signals of both E-band and other bands; an optical fiber for transmitting the optical signals multiplexed by the first thin film filter to a receiving portion; and a second thin film filter for selectively separating and demultiplexing the E-band and other bands from the optical signals transmitted through the optical fiber.

摘要翻译： 公开了一种能够通过一根光纤传输E波段和其他波段的光信号的光传输系统。 该系统包括：第一薄膜滤波器，用于分别接收两边的E波段和其他频带的光信号，并通过选择性地发送一侧接收的波长范围，反射E波段和其它频带的光信号，反射波长 在另一侧接收的范围，然后耦合E波段和其他波段的光信号; 用于将由第一薄膜滤波器复用的光信号传输到接收部分的光纤; 以及第二薄膜滤波器，用于从通过光纤传输的光信号中选择性地分离和解复用E波段和其他频带。

公开(公告)号：US07903974B2

公开(公告)日：2011-03-08

申请号：US11587830

申请日：2005-04-25

申请人： Ki-Wan Jang ,  Ki-Yeul Kim

发明人： Ki-Wan Jang ,  Ki-Yeul Kim

IPC分类号： H04J14/02 ,  H04B10/08

CPC分类号： H04J14/0246 ,  G02B6/29361 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/025 ,  H04J14/0282

摘要： Disclosed is an optical transmission system capable of transmitting optical signals of E-band and other bands through one optical fiber. The system includes a first thin film filter for receiving optical signals of E-band and other bands at both sides thereof respectively, and multiplexing the optical signals of both E-band and other bands by selectively transmitting wavelength ranges received at one side, reflecting wavelength ranges received at the other side, and then coupling the optical signals of both E-band and other bands; an optical fiber for transmitting the optical signals multiplexed by the first thin film filter to a receiving portion; and a second thin film filter for selectively separating and demultiplexing the E-band and other bands from the optical signals transmitted through the optical fiber.

摘要翻译： 公开了一种能够通过一根光纤传输E波段和其他波段的光信号的光传输系统。 该系统包括：第一薄膜滤波器，用于分别接收两边的E波段和其他频带的光信号，并通过选择性地发送一侧接收的波长范围，反射E波段和其它频带的光信号，反射波长 在另一侧接收的范围，然后耦合E波段和其他波段的光信号; 用于将由第一薄膜滤波器复用的光信号传输到接收部分的光纤; 以及第二薄膜滤波器，用于从通过光纤传输的光信号中选择性地分离和解复用E波段和其他频带。