摘要
介绍了用高温气相掺杂技术制备高掺铥双包层光纤的原理及制备工艺。通过料路温度与掺杂浓度的对比实验,以及对该新制备工艺的研究完善,找到了合适的料路温度,提高了铥的掺杂浓度和掺杂浓度的均匀性,新工艺有效消除了预制棒芯部的凹陷,降低了光纤的本底损耗,最终制作出掺杂浓度高(≥0.6%)、内包层形状为D形的高性能的掺铥双包层光纤。
The principle and fabrication technology of the high-concentration Tm^3＋ -doped double clad fiber is reported. The process gives the high Thulium concentrations and the high homogenity of the concentration,with the contract test of the heated-delivery tube temperature and Thulium concentration, the perfection of the research for new fabrica- tion equipment, the proper tube temperature for doping. The new technology avoided the depressed center of perform sucessfully,reduce the background loss of the fiber,the satisfying Thulium-doped double-cladding fiber is fabricated sucessfully. The concentration of Tm-ions is up to 0.6% ,and the inner cladding is D-shape.
出处
《激光与红外》
CAS
CSCD
北大核心
2010年第3期264-267,共4页
Laser & Infrared
基金
预研基金项目(No.9140A02040608DZ5601)
天津市应用基础及前沿技术研究计划项目(No.09JCYBJC01200)资助
关键词
Tm3+掺杂
双包层光纤
高温气相掺杂
光纤激光器
Tm^3＋ -doped
double-clad fiber
high-temperature vapor-phase technology
fiber laser
