公开(公告)号：KR1020110062946A

公开(公告)日：2011-06-10

申请号：KR1020090119834

申请日：2009-12-04

Applicant: 한국전자통신연구원

Inventor： 서홍석 ,  안준태 ,  박봉제 ,  오대곤 ,  송정호

IPC: H01S3/07 ,  H01S3/067

CPC classification number: H01S3/076 ,  H01S3/067 ,  H01S3/094019 ,  H01S5/0615

Abstract: PURPOSE: A laser generator is provided to minimize a loss of a pump light source by using a side coupling method and a control laser of a hollow optical coupler. CONSTITUTION: One end of the first optical fiber(120) is connected to a modulator(180) and a reflector(182), successively. One end of the first optical fiber are connected to the modulator with a single mode optical fiber(162). The other end of the first optical fiber is connected to an output coupler(184) and an output terminal(190), successively. A tapered portion of the optical coupling device(100) faces an output terminal(190). The optical coupling device is located at a position where the modulator is more contiguous than the output terminal. The core of the first optical fiber is directly connected to the core of a single mode optical fiber(162).

Abstract translation: 目的：提供激光发生器，通过使用侧耦合方法和中空光耦合器的控制激光器来最小化泵浦光源的损耗。 构成：第一光纤（120）的一端依次连接到调制器（180）和反射器（182）。 第一光纤的一端用单模光纤（162）连接到调制器。 第一光纤的另一端依次连接到输出耦合器（184）和输出端子（190）。 光耦合装置（100）的锥形部分面向输出端（190）。 光耦合装置位于调制器比输出端更连续的位置。 第一光纤的核心直接连接到单模光纤（162）的核心。

公开(公告)号：KR1020070002941A

公开(公告)日：2007-01-05

申请号：KR1020050058651

申请日：2005-06-30

Applicant: 한국전자통신연구원

Inventor： 정운진 ,  박봉제 ,  서홍석 ,  안준태

IPC: C03C3/12 ,  C03C13/04

CPC classification number: H01S3/302 ,  C03C3/122 ,  C03C4/0071 ,  C03C4/12 ,  C03C13/048 ,  C03C14/006 ,  H01S3/06716 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094011 ,  H01S3/094096 ,  H01S3/177

Abstract: Tellurite glass composition including oxides of tellurium, molybdenum, tungsten, zinc and/or bismuth is provided to be applied in manufacturing optical waveguide and/or optical amplifier and to embody wide-band optical amplifier or laser even with a few of excitation light sources by comprising TeO2, MoO3 or WO3, ZnO, Bi2O3 and mono-valent metal oxides. The composition includes: 25-90mol.% of TeO2; 1-55mol.% of T1O3 or 1-40mol.% of T2O3; 0-35mol.% of ZnO; 0-35mol.% of M2O; and 0-20mol.% of Bi2O3. T1 is molybdenum Mo, T2 is tungsten W and M2O is Li2O or Na2O. M2O is fabricated of two or more of metal oxides among Li2O, Na2O, K2O and Cs2O which are metal oxides containing mono-valence electron. Amount of each of M2O and ZnO is not zero(0) at the same time. The composition further contains at least one or two selected from WO3, Ta2O5, PbO, Nb2O3 and Al2O3 in amount of 0-20mol.%. The composition increases full width at half maximum of Raman peak from 200cm-1 to 300cm-3.

Abstract translation: 提供了包括碲，钼，钨，锌和/或铋的氧化物的碲化物玻璃组合物，用于制造光波导和/或光放大器，并且即使用少量激发光源也可以实现宽带光放大器或激光器 包括TeO 2，MoO 3或WO 3，ZnO，Bi 2 O 3和一价金属氧化物。 组合物包括：25-90mol％的TeO 2; 1-55mol％的T1O3或1-40mol％的T2O3; 0-35mol％的ZnO; 0-35mol％的M2O; 和0-20mol％的Bi2O3。 T1是钼Mo，T2是钨W，M2O是Li2O或Na2O。 M2O由Li2O，Na2O，K2O和Cs2O中的两种或多种金属氧化物制成，它们是含有单价电子的金属氧化物。 M2O和ZnO中的每一个都不是零（0）。 组合物还含有选自WO 3，Ta 2 O 5，PbO，Nb 2 O 3和Al 2 O 3中的至少一种或两种，其量为0-20mol％。 组合物将拉曼峰的最大半峰宽从200cm -1增加到300cm-3。

公开(公告)号：KR100651747B1

公开(公告)日：2006-12-01

申请号：KR1020050110820

申请日：2005-11-18

Applicant: 한국전자통신연구원

Inventor： 정운진 ,  서홍석 ,  안준태 ,  박봉제

IPC: C03B37/018

Abstract: Provided are an optical fiber preform and a fabrication method for the same using a VAD method, which manufactures a uniform, dense, and high-quality optical fiber preform and enables production and supply of an economic optical fiber preform due to the simplified process. The optical fiber preform using a VAD method comprises: a core(10) through which a light passes; a clad of a porous structure(30) that surrounds the core(10); and an outermost clad(70) that surrounds the outer surface of the clad(30) and is formed by a VAD method. The method for fabricating the optical fiber preform comprises the steps of: forming the core(10) through which a light passes and the clad(30) surrounding the core(10); and obtaining the optical fiber preform by forming the outermost clad(70) on the outer surface of the clad(30) using a VAD method.

Abstract translation: 本发明提供一种使用VAD法的光纤母材及其制造方法，该VAD法制造均匀且致密且高品质的光纤母材，并且能够通过简化的工序制造并供应经济的光纤母材。 使用VAD方法的光纤预制件包括：光通过的芯部（10） 围绕所述核心（10）的多孔结构（30）的包层; 以及围绕包层（30）的外表面并且通过VAD方法形成的最外包层（70）。 用于制造光纤预制棒的方法包括以下步骤：形成光通过的芯部（10）和包围芯部（10）的包层（30）; 并通过使用VAD方法在包层（30）的外表面上形成最外包层（70）来获得光纤预制棒。

公开(公告)号：KR100472055B1

公开(公告)日：2005-03-10

申请号：KR1020020061670

申请日：2002-10-10

Applicant: 한국전자통신연구원

Inventor： 서홍석 ,  최용규 ,  김경헌

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: 본 발명은 전송용 광섬유에 관한 것으로, SiO
2 로 이루어진 코어 및 클래딩을 포함하는 전송용 광섬유에 있어서, 코어 및 클래딩의 SiO
2 에 GeO
2 및 F가 도핑된 것을 특징으로 한다. 따라서, 코어 및 클래딩의 굴절률을 조정하여 원하는 분산 값과 낮은 비선형성을 유지하면서 높은 라만 이득계수를 얻을 수 있고, 레이저 다이오드의 펌프파워를 줄일 수 있고, 펌프파워를 줄임으로 해서 레이저 다이오드의 가격을 인하할 수 있으며, 레이저 다이오드가 고출력으로 동작하지 않아도 되기 때문에 수명이 연장되는 효과가 있다.

公开(公告)号：KR1020040026291A

公开(公告)日：2004-03-31

申请号：KR1020020057685

申请日：2002-09-24

Applicant: 한국전자통신연구원

Inventor： 최용규 ,  박봉제 ,  서홍석 ,  조두희 ,  김경헌 ,  이태훈 ,  허종

IPC: G02B6/00

CPC classification number: H01S3/094003 ,  H01S3/161

Abstract: PURPOSE: An optical amplifier is provided to improve the pumping efficiency by using phosphors of 1.6 micrometer emitted from ions of holmium added to an optical fiber or an optical waveguide. CONSTITUTION: An optical amplifier includes an optical member, a pumping unit, an input unit, a WDM coupler, and an output unit. The optical member includes a core including holmium and a clad. The pumping unit is optically connected to the pumping unit in order to irradiate the pumping light to the optical member. The pumping unit includes the first light source for emitting light of a wavelength band of 11,200 to 11,500 cm¬-1 and the second light source for emitting light of a wavelength band of 6,000 to 6,500 cm¬-1. The input unit inputs an optical signal to the optical member. The WDM coupler is used for coupling incident signal light of the input unit and the pumping light of the pumping unit. The output unit receives an amplified signal of the optical member.

Abstract translation: 目的：提供一种光放大器，通过使用从加入到光纤或光波导中的钬的离子发射的1.6微米的荧光体来提高泵浦效率。 构成：光放大器包括光学部件，泵送单元，输入单元，WDM耦合器和输出单元。 光学构件包括包括钬和包层的芯。 泵送单元光学地连接到泵送单元以便将泵浦光照射到光学构件。 泵送单元包括用于发射波长带11,200至11,500cm -1的光的第一光源和用于发射6,000至6,500cm -1的波段的光的第二光源。 输入单元将光信号输入到光学构件。 WDM耦合器用于耦合输入单元的入射信号光和泵送单元的泵浦光。 输出单元接收光学构件的放大信号。