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Ge-Sb-Se硫系玻璃拉曼增益特性研究
  • ISSN号:1000-3290
  • 期刊名称:《物理学报》
  • 时间:0
  • 分类:TN929.11[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构:[1]宁波大学高等技术研究院红外材料及器件实验室,宁波315211, [2]浙江省光电探测材料及器件重点实验室,宁波315211
  • 相关基金:国家自然科学基金(批准号:61435009); 宁波大学王宽诚幸福基金资助的课题.
中文摘要:

本文制备了As2S3,As2Se3,Ge20Sb15Se65和Ge28Sb12Se60(mol%)四种硫系玻璃,测试了样品的折射率,红外透过及拉曼光谱.利用自发拉曼散射理论,并结合测量的拉曼光谱数据,通过将硫系玻璃与石英玻璃样品的拉曼光谱作对比的方法计算了四种硫系玻璃的拉曼增益系数gR.结果表明:As2S3玻璃在340 cm^-1拉曼频移处gR为60×10^-13m/W,As2Se3玻璃在230 cm^-1拉曼频移处gR为223×10^-13m/W,与文献报道结果基本相符.与传统光纤拉曼增益系数实验测定法相比,此方法为探索新型高拉曼增益的硫系玻璃组成提供了极大的便捷,应用此方法,计算得出Ge20Sb15Se65和Ge28Sb12Se6玻璃在200 cm^-1拉曼频移处的9R值分别为215×10^-13m/W和111×10^-13m/W.以上结果表明,不含有毒As元素的Ge-Sb-Se硫系玻璃其增益系数可达普通石英玻璃的200倍以上,为环境友好型拉曼光纤激光器基质材料提供了一种全新的可能.

英文摘要:

Previously reported chalcogenide glass Raman fiber lasers are made of glass compositions such as As2S3 or As2Se3.However,due to the high toxicity of the element arsenic,there is a potential risk in the glass preparation,fiber drawing,and testing processes.Therefore,we need to explore new environmentally friendly chalcogenide glasses that do not contain As for Raman fiber lasers.Studies have shown that the chalcogenide glasses of Ge-Sb-Se system have excellent infrared transmissions and good environmental friendliness,and thus they are excellent candidates for chalcogenide glass Raman fiber lasers.However,their Raman gains have not been reported.Then Raman gain coefficients can be obtained by experimental measurements and theoretical analyses.The experimental method requires expensive laboratory equipments,a complex optical path,and precision adjustments.Therefore,the design and preparation of new chalcogenide glass fiber with high Raman gain require the theoretical analysis of the Raman gain characteristics in a particular glass component glass.In this work,four chalcogenide glasses,respectively,with compositions of As2S3,As2Se3,Ge20Sb15Se65 and Ge28Sb12Se60(mol%) are prepared.Refractive indices,infrared transmission and Raman spectra of these glass samples are measured.By using spontaneous Raman scattering theory combined with the measured Raman spectral data,the values of Raman gain coefficient gR of the chalcogenide glasses are calculated and calibrated by a quartz glass sample.Results show that the g_R of As2S3 glass is 60×10^-13 m/W at 230 cm^-1 Raman shift and the gr of As2Se3 glass is 223×10^-13 m/W at 340 cm^-1 Raman shift,which are consistent with the experimental results reported in the literature.Compared with the traditional method,the present method used for calculating the fiber Raman gain coefficient provides great convenience for exploring new chalcogenide glasses with high Raman gain.By using this method,we obtain the g_R values of Ge20Sb15Se65 and Ge28Sb12Se60 glasses at 200 cm^-1 Raman sh

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期刊信息
  • 《物理学报》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编:欧阳钟灿
  • 地址:北京603信箱(中国科学院物理研究所)
  • 邮编:100190
  • 邮箱:apsoffice@iphy.ac.cn
  • 电话:010-82649026
  • 国际标准刊号:ISSN:1000-3290
  • 国内统一刊号:ISSN:11-1958/O4
  • 邮发代号:2-425
  • 获奖情况:
  • 1999年首届国家期刊奖,2000年中科院优秀期刊特等奖,2001年科技期刊最高方阵队双高期刊居中国期刊第12位
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  • 被引量:49876