公开(公告)号：KR100477802B1

公开(公告)日：2005-03-22

申请号：KR1020020024689

申请日：2002-05-06

Applicant: 한국전자통신연구원

Inventor： 조두희 ,  최용규 ,  서홍석 ,  박봉제

IPC: C03C3/112

CPC classification number: C03C3/11 ,  C03C3/06 ,  C03C4/0071 ,  C03C13/046

Abstract: 본 발명은 툴륨 이온이 첨가된 규산염 유리 및 그 용도에 관한 것으로, 특히, 1.4㎛대역의 형광방출 특성이 우수한 새로운 조성의 툴륨 첨가 규산염 유리에 관한 것이다. 본 발명에 따른 규산염 유리는 산화규소(SiO
2 ) 65~95몰％; ZnO, BaO, SrO 및 PbO 로 이루어진 중 선택된 하나 또는 둘 이상을 포함하는 2가 금속 산화물 0.5~30몰％; SnO
2 및 TiO
2 중 선택된 하나 또는 둘을 모두 포함하는 4가 금속 산화물 1~15몰％;를 포함하는 유리기지 조성을 가지며, 상기 유리기지 조성 중 3~30몰％의 산소(O)가 불소(F)로 치환되어 있고, 활성이온으로서의 툴륨 이온이 0.01~1몰％ 첨가된 규산염 유리로서, 여기서 상기 툴륨 이온의

3
H
4 의 형광수명이 50㎲이상인 것을 특징으로 한다. 또한 상기 유리기지 조성에 K
2 O, Rb
2 O, Cs
2 O 중 선택된 하나 또는 둘 이상을 포함하는 알칼리 금속 산화물 0.5~5몰％; 및/또는 In
2 O
3 및 Sb
2 O
3 중 선택된 하나 또는 둘을 모두 포함하는 3가 금속 산화물 1~15몰％이 더 포함될 수도 있다. 본 발명에 따른 툴륨 이온이 첨가된 규산염 유리는 광섬유 등의 광도파로 형태로 제작하기가 용이하고, 전송용 광섬유와의 접속 특성도 우수할 뿐 아니라 내구성 및 내수성이 우수한 규산염 유리를 기초로 하고 있으면서도, 문제가 되었던 매질 자체의 높은 포논 에너지로 인한 다중 포논 완화에 의한 비복사 전이를 억제하고
3 H
4 준위의 형광 수명을 증가시켜 우수한 1.4 ㎛ 대역 형광 방출 특성을 나타낼 수 있다.

公开(公告)号：KR1020030092750A

公开(公告)日：2003-12-06

申请号：KR1020020030542

申请日：2002-05-31

Applicant: 한국전자통신연구원

Inventor： 서홍석 ,  최용규 ,  김경헌

IPC: G02B6/28

CPC classification number: G02B6/3616 ,  G02B6/255 ,  G02B6/2856 ,  G02B6/3636

Abstract: PURPOSE: An apparatus for fabricating a multi optical fiber coupler is provided to reduce fabrication cost of the optical fiber coupler and to fabricate several optical fiber couplers at the same time. CONSTITUTION: A multi micro torch(130) heats a fixed part to fuse a plurality of optical fibers by two in a pair. A multi optical fiber holder(120) is arranged symmetrically on both sides by referring to the micro torch, and fixes the plurality of optical fibers by two in an equal interval. And a transportation stage(110) is loaded with the multi micro torch and the multi optical fiber holder, and enables to move the multi optical fiber holder. And a driving motor(160) moves the optical fiber to move the optical fiber holder.

Abstract translation: 目的：提供一种用于制造多光纤耦合器的装置，以减少光纤耦合器的制造成本并同时制造若干光纤耦合器。 构成：多个微型炬（130）加热固定部分，使多根光纤成对熔合两根。 多光纤保持器（120）通过参照微炬对称地布置在两侧，并且以相等的间隔将多根光纤固定两个。 并且运输台（110）装载有多个微炬和多光纤保持器，并且能够移动多个光纤保持器。 并且驱动电机（160）移动光纤以移动光纤保持器。

公开(公告)号：KR100406527B1

公开(公告)日：2003-11-20

申请号：KR1020010036514

申请日：2001-06-26

Applicant: 한국전자통신연구원

Inventor： 최용규 ,  박봉제 ,  김경헌

IPC: G02B6/00

CPC classification number: H01S3/06716 ,  H01S3/06754 ,  H01S3/161 ,  H01S3/1618

Abstract: An optical amplifier of the present invention includes a pump source for generating a pumping light, a wavelength division multiplexing (WDM) coupler for multiplexing an inputted optical signal and the pumping light and an optical fiber including a core and a clad, wherein the core has holmium ions less than 0.5 mole % and the clad has ions selected from the group consisting of transition metal ions, rare earth ions and a combination thereof. In addition, the phonon energy of a host material is less than 600 cm-1 and an absorption band at short-wavelength side is shorter than 530 nm.

Abstract translation: 本发明的光放大器包括用于产生泵浦光的泵浦源，用于多路复用输入光信号和泵浦光的波分复用（WDM）耦合器，以及包括核心和包层的光纤，其中核心具有 hol离子小于0.5摩尔％且包层具有选自过渡金属离子，稀土离子及其组合的离子。 另外，主体材料的声子能量小于600cm -1，并且短波长侧的吸收带短于530nm。

公开(公告)号：KR1020030082252A

公开(公告)日：2003-10-22

申请号：KR1020020020903

申请日：2002-04-17

Applicant: 한국전자통신연구원

Inventor： 김종배 ,  박상기 ,  최용규 ,  주정진

IPC: G02B6/00

CPC classification number: G02F1/3558 ,  G02B6/29394 ,  G02F2201/02

Abstract: PURPOSE: A polarized optical fiber, a method for manufacturing the polarized optical fiber and a distribution compensator are provided to easily implement the splicing of other optical fibers and to remove the splicing loss since the end of the polarized optical fiber maintains the structures of core and cladding of a conventional optical fiber with original shape. CONSTITUTION: A polarized optical fiber includes a pair ends of an optical fiber and a central portion of the optical fiber. In the polarized optical fiber, one end or both ends maintain the original shape of a core(500) and a cladding(510) of a conventional optical fiber. The central portion of the optical fiber is a portion excepting the one end or both ends of the optical fiber and a groove is formed at a portion of the cladding(510) in such a way that the central portion of the optical fiber has a surface adjacent to the core(500) in a lengthwise direction of the optical fiber. The polarization of the optical fiber is formed by an electrode(900) placed at the surface adjacent to the core(500) of the groove.

Abstract translation: 目的：提供偏振光纤，偏振光纤的制造方法和分布补偿器，以便容易地实现其它光纤的拼接和消除拼接损耗，因为偏振光纤的端部保持了核心和 具有原始形状的常规光纤的包层。 构成：偏振光纤包括光纤的一对端和光纤的中心部分。 在偏振光纤中，一端或两端保持常规光纤的芯（500）和包层（510）的原始形状。 光纤的中心部分是除了光纤的一端或两端之外的部分，并且在包层（510）的一部分处形成凹槽，使得光纤的中心部分具有表面 在光纤的长度方向上与芯部（500）相邻。 光纤的极化通过放置在与槽的芯部（500）相邻的表面处的电极（900）形成。

公开(公告)号：KR100398047B1

公开(公告)日：2003-09-19

申请号：KR1020010067051

申请日：2001-10-30

Applicant: 한국전자통신연구원

Inventor： 서홍석 ,  최용규 ,  김경헌

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：提供一种光纤激光器谐振器，其被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）通过辫形尾部连接到激光二极管（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）和芯体（41）构成，其中刻有光栅，并被配置成通过锥形方法连接第一和第二光纤的两端。 第一根光纤是SMA电缆，第二根光纤是双包层光纤，由掺镱芯和包层组成。 GeO2被掺杂在第三光纤的光栅被雕刻的芯中。 作为密封装置的二氧化硅（32）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稳地前进。

公开(公告)号：KR100340047B1

公开(公告)日：2002-06-12

申请号：KR1019990043722

申请日：1999-10-11

Applicant: 한국전자통신연구원

Inventor： 조두희 ,  최용규 ,  김경헌

IPC: C03C3/00

CPC classification number: C03C13/048 ,  C03C3/122 ,  C03C3/253 ,  H01S3/177

Abstract: 본발명은광통신용광증폭기및 레이저에이용할수 있도록첨가된희토류금속이온의형광효율이높고광섬유제조공정에서열적및 화학적으로안정한새로운유리에관한것이다. 본발명의유리는 20~70 몰%의산화텔루륨(TeO), 10~50 몰%의산화저마늄(GeO), 1~30 몰%의산화인듐(InO), 1~10 몰%의산화비스무트(BiO), 5~30 몰%의 2가금속산화물, 1~20 몰%의 1가금속산화물조성의유리에서 2가및 1가금속산화물의 3~18 몰%를금속할로겐화물로대체한조성을가진다. 즉, 본발명의유리는산화텔루륨과산화저마늄및 산화인듐을주성분으로하고금속할로겐화물을첨가한다성분계할로겐산화물조성의유리로서, 첨가된희토류금속이온으로부터 1.0~3.0 μm 대역의근적외선형광을효율적으로발생시킬수 있다. 본발명의유리는종전의텔루라이트유리와불화물및 황화물유리에서보였던유리전이온도와용융온도사이의온도로가열할때 일어나는결정화현상이극히억제되고상분리를일으키지않는매우안정한유리이다. 또한, 본발명의유리는텔루라이트유리의높은흡수및 형광방출단면적을유지하고, 포논에너지가유사하여비복사천이확률이텔루라이트유리에비해높지않으며, 할로겐화물의첨가로텔루라이트유리에비해형광수명이증가하여보다우수한형광특성을가진다.

公开(公告)号：KR1020020015414A

公开(公告)日：2002-02-28

申请号：KR1020000048504

申请日：2000-08-22

Applicant: 한국전자통신연구원

Inventor： 최용규 ,  신용범 ,  조두희 ,  김경헌

IPC: C03B37/012

CPC classification number: C03B37/01268

Abstract: PURPOSE: Provided is a clad mold for producing optical fiber by a melting method which can be prepared economically in a simple process, and thereby it is possible to prevent a parent material of optical fiber from being contaminated by impurities and deteriorated in its quality. CONSTITUTION: The mold of clad(10) for producing a parent material of optical fiber comprises a clad mold(11) of a pipe shape having an end closed, a predetermined length and an inner diameter corresponding to a diameter of a clad; and a cylindrical core rod(12) attached to the closed end of the clad mold(11) in the same axis as the clad mold(11) and having a predetermined length and an outer diameter corresponding to a diameter of a core to be formed. The clad mold is prepared by (i) pouring melted glass to a hollow of the mold of clad(10), followed by solidifying the glass to form a clad; (ii) removing the clad mold(11); (iii) removing the core rod(12); and (iv) inserting a core rod into a hollow formed by removing the core rod in the step (iii).

Abstract translation: 目的：提供一种通过熔融法生产光纤的复合模具，其可以在简单的工艺中经济地制备，从而可以防止光纤的母材被杂质污染并且质量劣化。 构成：用于制造光纤母材的包层（10）的模具包括具有端部封闭，预定长度和对应于包层直径的内径的管状包层模具（11） 以及圆筒形芯棒（12），其与所述包层模具（11）在与所述包层模具（11）相同的轴线上的所述包覆模具（11）的所述封闭端部附接，并且具有预定的长度和对应于待形成的芯的直径的外径 。 包层模具通过以下步骤制备：（i）将熔融的玻璃浇注到包层（10）的模具的中空，然后固化玻璃以形成包层; （ii）移除包层模具（11）; （iii）移除芯棒（12）; 和（iv）将芯棒插入到通过在步骤（iii）中去除芯棒而形成的中空部中。

公开(公告)号：KR1020010054217A

公开(公告)日：2001-07-02

申请号：KR1019990054902

申请日：1999-12-03

Applicant: 한국전자통신연구원

Inventor： 최용규 ,  임동성 ,  김경헌 ,  이학규

IPC: G02B6/02

CPC classification number: H01S3/06708 ,  H01S3/06716

Abstract: PURPOSE: An optical wave guide, in which rare earth ion is added, is provided to transform an amplified spontaneous emission spectrum with transition of erbium from ¬4I13/2 to ¬4I15/2 for making the gain in a shorter wavelength than 1530mm. CONSTITUTION: The optical wave guide, in which rare earth ion is added, includes a core and a clad. The core is a central layer and the light is transmitted from the core. The clad makes that the light doesn't escape to the outside. The erbium(Er) ion is doped in the appointed distance of the central point of the core. The rare earth ion is doped on the inside or the surface of the core distant from the central point of the core. The rare earth ion is dysprosium(Dy), thulium(Tm), terbium(Tb) or neodymium(Nd) ion. The range of the distance between the erbium doping field and the rare earth doping field is to a semi-diameter of the core from 20mm.

Abstract translation: 目的：提供一种其中加入稀土离子的光波导，用于将放大的自发发射光谱从¬4I13/ 2转换为¬4I15/ 2，使增益在比1530mm短的波长。 构成：添加稀土离子的光波导包括芯和包层。 核心是中心层，光从核心传输。 包裹使得光线不会逃逸到外面。 铒（Er）离子以芯的中心点的指定距离掺杂。 稀土离子掺杂在核心的内部或表面，远离核心的中心点。 稀土离子是镝（Dy），ium（Tm），铽（Tb）或钕（Nd）离子。 铒掺杂场和稀土掺杂场之间的距离范围是从20mm的芯的半径。

公开(公告)号：KR1020010037649A

公开(公告)日：2001-05-15

申请号：KR1019990045300

申请日：1999-10-19

Applicant: 한국전자통신연구원

Inventor： 조두희 ,  최용규 ,  김경헌

IPC: C03C3/00

CPC classification number: C03C13/04 ,  C03C2201/3447 ,  C03C2201/3458 ,  C03C2201/347 ,  C03C2201/3482 ,  H01S3/06716

Abstract: PURPOSE: Provided are thulium and dysprosium doped glass and photoelectric elements which have high efficiency using the same. CONSTITUTION: The glass used as a medium of a photoelectric element has a thulium ion and dysprosium ion doped composition, wherein the base glass is selected from tellurite glass, heavy metal oxide glass, fluoride glass and so on. The photoelectric elements are composed of the thulium ion and dysprosium ion doped glass and is an optical amplifier or optical fiber laser having a bandwidth of 1.42-1.53 micrometer.

Abstract translation: 目的：提供ium和镝掺杂的玻璃和光电元件，使用它们具有高效率。 构成：用作光电元件的介质的玻璃具有ium离子和镝离子掺杂组合物，其中基底玻璃选自碲酸盐玻璃，重金属氧化物玻璃，氟化物玻璃等。 光电元件由ium离子和镝离子掺杂玻璃组成，是带宽为1.42-1.53​​微米的光放大器或光纤激光器。

公开(公告)号：KR1020010017731A

公开(公告)日：2001-03-05

申请号：KR1019990033395

申请日：1999-08-13

Applicant: 한국전자통신연구원

Inventor： 최용규 ,  임동성 ,  조두희 ,  김경헌

IPC: G02F1/39

Abstract: PURPOSE: A low phonon energy glass added complex ion and an optic fiber amplifier are provided to enhance an excitation efficiency of 980 nm zone by adding an erbium adding glass having a low phonon energy as tellurites to a cerium. CONSTITUTION: In the case that an erbium is only added and a spectrum generated from a glass adding an erbium and a cerium, a fluorescent strength on 980 nm generated by 4I11/2 to 4I15/2 transition is greatly decreased, and a fluorescent strength on 1530 nm generated by 4I13/2 to 4I15/2 transition is greatly increased. According as an adding density of a cerium is increased, a transition velocity of 4I11/2. If the cerium is 4 mole %, the increase amount is little decreased. A theoretical releasing transition velocity from 4I11/2 of tellurites glass to 4I13/2 is 45 s-1, and a multi-phonon relaxation velocity is about 4500 s-1. Thus, a transition velocity is enhanced about 2000 s-1 by adding 1 mole% cerium. An excitation efficiency of 980 nm zone is enhanced by adding a glass phonon energy thereof is 800 cm-1 to a cerium.

Abstract translation: 目的：提供一种低声子能量玻璃添加复合离子和光纤放大器，以通过将具有低声子能的铒添加玻璃作为碲化物添加到铈中来增强980nm区域的激发效率。 构成：在仅添加铒和从添加铒和铈的玻璃产生的光谱的情况下，由4I11 / 2〜4I15 / 2跃迁产生的980nm的荧光强度大大降低，荧光强度 通过4I13 / 2到4I15 / 2转换产生的1530nm大大增加。 根据铈的添加密度增加，转变速度为4I11 / 2。 如果铈为4摩尔％，则增加量少。 从碲化物玻璃的4I11 / 2到4I13 / 2的理论释放跃迁速度为45s -1，多声子弛豫速度约为4500s -1。 因此，通过加入1摩尔％的铈，转变速度提高约2000秒-1。 通过向铈中加入800cm -1的玻璃声子能量来提高980nm区域的激发效率。