激光加热基座技术生长超细单晶光纤研究  

Growth of Ultrafine Single-Crystal Fibers by Laser Heated Pedestal Growth Technique

作　　者：王涛 贾志泰 李阳 张健 陶绪堂 WANG Tao;JIA Zhitai;LI Yang;ZHANG Jian;TAO Xutang(Institute of Crystal Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China)

机构地区：[1]山东大学晶体材料国家重点实验室,晶体材料研究院,济南250100

出　　处：《人工晶体学报》2022年第3期428-433,共6页Journal of Synthetic Crystals

基　　金：山东省自然科学青年基金(ZR2021QE281);山东大学青年学者未来计划(2018WLJH66);山东大学基本科研业务经费(2020GN079)。

摘　　要：单晶光纤(SCF)是具有纤维结构的“准一维”功能晶体材料,在高能激光、高温传感、辐射探测、信息通信等国防民生领域展现出了巨大的应用前景。本文采用激光加热基座技术成功制备出直径60~100μm、长径比>6000∶1的超细Al_(2)O_(3)、YAG单晶光纤,单晶光纤平均直径起伏<4%,展现出良好的柔韧性与波导特性,为单晶光纤器件的小型化与集成化创造了条件。Single-crystal fiber(SCF)is a kind of fibrous functional crystalline material with“quasi one-dimensional”structure,exhibiting great application prospects in the fields of high-energy lasers,high-temperature sensing,radiation detection,information communication and other areas of national defense and national livelihood.In this work,ultrafine Al_(2)O_(3) and YAG single-crystal fibers with the diameter from 60μm to 100μm and length-to-diameter ratio greater than 6000∶1 were grown by laser heated pedestal growth(LHPG)technique.The diameter fluctuation of the obtained SCF is less than 4%,demonstrating excellent flexibility and waveguide characteristics.This work presents feasible approach for the miniaturization of SCF devices method.

关 键 词：超细单晶光纤 Al_(2)O_(3)单晶光纤 YAG单晶光纤 激光加热基座法 功能晶体 单晶生长 直径起伏 

分 类 号：TN253[电子电信—物理电子学]