发明申请
WO2010109494A2 AN IMPROVED METHOD FOR FABRICATING RARE EARTH (RE) DOPED OPTICAL FIBER USING A NEW CODOPANT
审中-公开
基本信息:
- 专利标题: AN IMPROVED METHOD FOR FABRICATING RARE EARTH (RE) DOPED OPTICAL FIBER USING A NEW CODOPANT
- 专利标题(中):一种改进的使用新配方制造稀土(稀土)掺杂光纤的方法
- 申请号:PCT/IN2010/000201 申请日:2010-03-29
- 公开(公告)号:WO2010109494A2 公开(公告)日:2010-09-30
- 发明人: SEN, Ranjan , DHAR, Anirban , PAUL, Mukul, Chandra , MAITI, Himadri, Sekhar
- 申请人: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH , DEPARTMENT OF INFORMATION TECHNOLOGY , SEN, Ranjan , DHAR, Anirban , PAUL, Mukul, Chandra , MAITI, Himadri, Sekhar
- 申请人地址: Anusandhan Bhawan 2, Rafi Marg New Delhi 110 001 IN
- 专利权人: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH,DEPARTMENT OF INFORMATION TECHNOLOGY,SEN, Ranjan,DHAR, Anirban,PAUL, Mukul, Chandra,MAITI, Himadri, Sekhar
- 当前专利权人: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH,DEPARTMENT OF INFORMATION TECHNOLOGY,SEN, Ranjan,DHAR, Anirban,PAUL, Mukul, Chandra,MAITI, Himadri, Sekhar
- 当前专利权人地址: Anusandhan Bhawan 2, Rafi Marg New Delhi 110 001 IN
- 代理机构: LALL, Amar, Raj
- 优先权: IN609/DEL/2009 20090327
- 主分类号: C03B37/018
- IPC分类号: C03B37/018
摘要:
The present invention provides a method of making rare earth (RE) doped optical fiber using BaO as co-dopant instead of Al or P commonly used for incorporation of the RE in silica glass by MCVD and solution doping technique. The method comprises deposition of particulate layer of GeO 2 doped SiO 2 with or without small P 2 O 5 for formation of the core and solution doping by soaking the porous soot layer into an aqueous solution of RE and Ba containing salt. This is followed by dehydration and sintering of the soaked deposit, collapsing at a high temperature to produce the preform and drawing of fibers of appropriate dimension. The use of Ba-oxide enables to eliminate unwanted core-clad interface defect which is common in case of Al doped fibers. The fibers also show good RE uniformity, relatively low optical loss in the 0.6-1.6 μm wavelength region and good optical properties suitable for their application in amplifiers, fiber lasers and sensor devices.
摘要(中):
本发明提供了使用BaO作为共掺杂剂而不是通常用于通过MCVD将二氧化硅玻璃中的RE引入的Al或P来制造稀土(RE)掺杂光纤的方法,以及溶液掺杂 技术。 该方法包括沉积具有或不具有小的P 2 O 5 5的GeO 2掺杂的SiO 2的颗粒层, 通过将多孔烟灰层浸泡到含RE和Ba的盐的水溶液中形成芯和溶液掺杂。 随后进行浸泡沉积物的脱水和烧结,在高温下塌陷以生产预制棒并拉伸合适尺寸的纤维。 使用Ba氧化物可以消除Al掺杂光纤常见的不需要的芯 - 包层界面缺陷。 这些光纤还显示出良好的RE均匀性,在0.6-1.6μm波长范围内具有相对较低的光损耗,并且具有良好的光学性能,适用于放大器,光纤激光器和传感器设备中的应用。 p>
IPC结构图谱:
C | 化学;冶金 |
--C03 | 玻璃;矿棉或渣棉 |
----C03B | 制造、成型或辅助工艺 |
------C03B37/00 | 由软化的玻璃、矿物或渣制的絮片、纤维或细丝的制造或处理 |
--------C03B37/01 | .玻璃纤维或细丝的制造 |
----------C03B37/012 | ..拉制纤维或细丝用预制棒的制造 |
------------C03B37/014 | ...完全或部分用化学方法制造 |
--------------C03B37/018 | ....用玻璃基体上沉积玻璃法,例如用化学气相沉积法 |