超宽带发光铋掺杂玻璃及光纤的研究进展(特邀)  

Research progress on ultra-broadband luminescence of Bi-doped glass and fiber(invited)

作　　者：陈为为 邱建荣[2] 董国平 Chen Weiwei;Qiu Jianrong;Dong Guoping(The State Key Laboratory of Luminescent Materials and Devices,School of Materials Science and Engineering,South China University of Technology,Guangzhou 510641,China;State Key Laboratory of Modern Optical Instrumentation,College of Optical Science and Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]华南理工大学材料科学与工程学院发光材料与器件国家重点实验室,广东广州510641 [2]浙江大学光电科学与工程学院现代光学仪器国家重点实验室,浙江杭州210027

出　　处：《红外与激光工程》2023年第5期25-42,共18页Infrared and Laser Engineering

基　　金：国家自然科学基金(62122027,52002128,62075063,62205109)。

摘　　要：自诺贝尔奖获得者高锟提出可用玻璃光纤代替传统电缆传输线,利用光波导传输光信号的方法来实现信息传输以来,人们就一直致力于优化现有光纤的性能和探索新的光纤激光介质材料。目前,用于光通信系统的光纤激光器和光放大器的增益光纤多见于稀土离子掺杂玻璃光纤,然而稀土离子固有的f-f跃迁导致较窄的传输带宽已经无法满足日益剧增的网络数据传输需求。铋(Bi)离子是继过渡金属离子、稀土离子后的第三类激活离子,是激光材料领域发展的新方向。目前,Bi掺杂玻璃光纤已经在1150~1550 nm和1600~1800 nm范围内实现了激光输出和光信号放大。这充分说明了Bi掺杂玻璃光纤有望解决现有数据传输能力不足的问题,成为新一代光纤激光器和放大器的增益材料。因此,文中主要介绍Bi掺杂玻璃和光纤的研究进展,分析Bi掺杂玻璃及光纤材料目前存在的问题,并展望了未来的研究方向。Significance At present,gain fibers of lasers and amplifiers used in optical communication systems are more common in rare earth ion-doped glass fibers.However,the inherent f-f transition of rare earth ion leads to the narrow transmission bandwidth which cannot meet the increasing demand for network data traffic transmission.Bi-activated optical glasses and fibers can exhibit broadband NIR luminescence in a spectral region of 1000-1800 nm spanning the whole low-loss optical communication window,which possesses unique advantages over traditional rare-earth ions and transition metal ions doped glasses or glass-ceramics.Moreover,Bi-doped glass fibers have achieved laser output and optical signal amplification in the range of 1150-1550 nm and 1600-1800 nm.This fully shows that Bi-doped glass fiber is expected to solve the problem of insufficient data transmission capacity,and becomes a gain material for the next generation of fiber lasers and amplifiers.Progress The research progress of Bi-doped glass and fiber can be illustrated by the discussion of the luminescence mechanism,the performance improvement of Bi-doped glass,the exploration of optical fiber preparation methods,and the application progress of Bi-doped fiber.Bi has the electronic configuration of(Xe)4f^(14)5d^(10)6s^(2)6p^(3),where the outer 6s and 6p electrons have the significant interaction with the host glass,thereby showing host dependent absorption and emission properties and exhibiting a number of oxidation states such as+1,+2,+3 and+5.Thus,there are a number of hypotheses regarding the origin of NIR luminescence centers in Bi glasses:Bi clusters,BiO,Bi5+,Bi+and some other low valence states of Bi ions including metallic Bi,point defects,and Bi dimers.At present,it is generally accepted that the NIR luminescence of Bi comes from lowvalence Bi ions such as Bi^(+)and Bi^(0)(Fig.1 and Fig.2).Because Bi related NIR photoluminescence is quite sensitive to the local chemical environment,broadband NIR luminescence can be achieved in a variety of matrix gl

关 键 词：超宽带 红外发光 Bi掺杂玻璃 Bi掺杂光纤 

分 类 号：TB321[一般工业技术—材料科学与工程]