摘要
为了制备无砷红外硫系光纤,采用熔融-淬冷法和蒸馏提纯工艺熔制了高纯度的Ge20Se79Te1和Ge20Se80两种玻璃,基于优化的掏心挤压法制备出具有理想芯包结构的Ge-Se光纤预制棒。拉丝后的Ge-Se光纤在7.5~8.7μm波段的平均损耗为4.8dB/m,其中在7.7μm处达到3.2dB/m的最低损耗。利用中红外光参量放大器作为抽运源,抽运17cm长的Ge-Se光纤探究谱宽和抽运波长、抽运功率的关系,获得了光谱宽度为1.5~11.2μm的平坦超连续谱。
In order to fabricate an arsenic-free infrared chalcogenide optical fiber, two kinds of high purity glass samples, i. e., Ge20 Se79 Tei and Ge20 Se80, are prepared by the melt-quenching method and dynamic vacuum distillation purification process. Then a Ge-Se fiber preform with ideal core-clad structure is prepared by an optimized peel-off extrusion method. The drawn Ge-Se fiber has an average loss of 4.8 dB/m in the range from 7.5 to 8.7 μm, and has a minimum loss of 3.2 dB/m at 7.7 μm. A flat supercontinuum in the range of 1.5-11.2 μm is generated by using a 17-cm long fiber which is pumped by an optical parametric amplifier, and the relationship among supercontinuum wide, pumping wavelength, and pumping power is obtained.
作者
钟明辉
王弦歌
焦凯
司念
梁晓林
徐铁松
肖晶
刘佳
赵浙明
王训四
张培晴
刘永兴
戴世勋
聂秋华
Zhong Minghui;Wang Xiange;Jiao Kai;Si Nian;Liang Xiaolin;Xu Tiesong;Xiao Jing;Liu Jia;Zhao Zheming;Wang Xunsi;Zhang Peiqing;Liu Yongxing;Dai Shixun;Nie Qiuhua(Laboratory of Infrared Materials and Devices,Research Institute of Advanced Technology,Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo,Zhejiang 315211,China;Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province,Ningbo,Zhejiang 315211,China;Nanhu College,Jiaxing University,Jiaxing,Zhejiang 314001,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2019年第17期253-259,共7页
Laser & Optoelectronics Progress
基金
国家自然科学基金(61875097,61627815,61705091)
浙江省杰出自然科学基金(LR18F050002)
浙江省光电探测材料及器件重点实验室开放课题(2017004)
宁波市领军和拔尖人才培养工程择优资助
嘉兴市科技局项目(2017AY13010)
王宽诚幸福基金课题资助
关键词
光纤光学
硫系玻璃
红外光纤
绿色环保
光纤损耗
超连续谱
fiber optics
chalcogenide glass
infrared fiber
environmental protection
fiber loss
supercontinuum
