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Evaporation characteristics of Er3+-doped silica fiber and its application in the preparation of whispering gallery mode lasers
Li, Angzhen1; Ward, Jonathan M.2; Tian, Ke3,4; Yu, Jibo5; She, Shengfei6; Hou, Chaoqi6; Guo, Haitao6; Chormaic, Síle Nic4,7; Wang, Pengfei3
Department光子功能材料与器件研究室
2024-01-29
Source PublicationOptics Express
ISSN10944087
Volume32Issue:3Pages:3912-3921
Contribution Rank6
Abstract

In this work, the concentration of rare-earth ions in doped silica whispering gallery lasers (WGLs) is controlled by evaporation. The fabrication of WGLs is used to experimentally evaluate the evaporation rate (mol/µm) and ratio (mol/mol) of erbium and silica lost from a doped fiber during heating. Fixed lengths of doped silica fiber are spliced to different lengths of undoped fiber and then evaporated by feeding into the focus of a CO2 laser. During evaporation, erbium ions are precipitated in the doped silica fiber to control the erbium concentration in the remaining SiO2, which is melted into a microsphere. By increasing the length of the undoped section, a critical point is reached where effectively no ions remain in the glass microsphere. The critical point is found using the spectra of the whispering gallery modes in microspheres with equal sizes. From the critical point, it is estimated that, for a given CO2 laser power, 6.36 × 10−21 mol of Er3+ is lost during the evaporation process for every cubic micron of silica fiber. This is equivalent to 1.74 × 10−7 mol of Er3+ lost per mol of SiO2 evaporated. This result facilitates the control of the doping concentration in WGLs and provides insight into the kinetics of laser-induced evaporation of doped silica. © 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

DOI10.1364/OE.509662
Indexed BySCI ; EI
Language英语
WOS IDWOS:001199850900003
PublisherOptica Publishing Group (formerly OSA)
EI Accession Number20240615502598
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/97207
Collection光子功能材料与器件研究室
Corresponding AuthorWang, Pengfei
Affiliation1.Tianjin Key Laboratory of Quantum Optics and Intelligent Photonics, School of Science, Tianjin University of Technology, Tianjin; 300384, China;
2.Physics Department, University College Cork, Cork, Ireland;
3.Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Science, Harbin Engineering University, Harbin; 150001, China;
4.Light-Matter Interactions for Quantum Technologies Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Onna; 904-0495, Japan;
5.Xi’an Institute of Applied Optics, Xi’an; 710065, China;
6.State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China;
7.Institute of Physics, Technische Universität Chemnitz, Chemnitz; D-09107, Germany
Recommended Citation
GB/T 7714
Li, Angzhen,Ward, Jonathan M.,Tian, Ke,et al. Evaporation characteristics of Er3+-doped silica fiber and its application in the preparation of whispering gallery mode lasers[J]. Optics Express,2024,32(3):3912-3921.
APA Li, Angzhen.,Ward, Jonathan M..,Tian, Ke.,Yu, Jibo.,She, Shengfei.,...&Wang, Pengfei.(2024).Evaporation characteristics of Er3+-doped silica fiber and its application in the preparation of whispering gallery mode lasers.Optics Express,32(3),3912-3921.
MLA Li, Angzhen,et al."Evaporation characteristics of Er3+-doped silica fiber and its application in the preparation of whispering gallery mode lasers".Optics Express 32.3(2024):3912-3921.
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