Feasibly experimental projects of fabricating buried waveguides by field - assisted ion - exchanged technology using this equipment were designed . used thermal ion - exchange and the silver film ion - exchange technology , the planar and channel waveguides were fabricated 在实验室允许的条件下,采用ag膜电场辅助离子交换和熔盐离子交换法对铒镱共掺磷酸盐玻璃平板波导和沟道波导进行了制作。
According to each tested data of material and single mode propagation requirement of signal in gain fiber , the core fiber and cladding are designed respectively , and a reasonable double cladding amplifiers fiber structure is showed in this paper 根据材料的各种性能测数据及信号光在增益介质内单模传输的要求,对铒镱共掺磷酸盐增益玻璃光纤的纤芯和包层进行了设计,提出双包层结构光纤设计方案。
Then after analysising each characteristics of phosphate glass material , the fiber rod - in - tube by invaginating core rod , inside cladding and outside cladding is used to fabricate the er / yb phosphate glass fiber successfully by polishing and vacuumizing fiber rod - in - tube . finally some techniques , such as cladding pump , prism coupling pump and fusing pump are used to measure the gain of fiber amplifiers 最后对拉制出的光纤提出了包层泵浦、棱镜耦合泵浦和熔接耦合泵浦三种可行的增益和传输特性测试测方案,并针对铒镱共掺磷酸盐玻璃光纤的特性,指出了熔接耦合是测试增益和传输特性的最佳方案。
The application of radio frequency magneto - controlled sputtering was introduced briefly . in this research , multiferroelectric magnetoelectric lcmto with excellect crystal and electric properties which keeps substitution each other between la and ca as well as mn and ti were prepared by traditional ceramic process , and the film was prepared by radiofrequency magneto - controlled sputtering 本研究中采用传统的陶瓷烧结方法及射频磁控溅射技术成功制备了具有优良结晶性能和电性能的la 、 ca和mn 、 ti离子共掺的lcmto复铁电性的磁电子材料及薄膜。
The general development , characteristics and applications of er ~ ( 3 + ) / yb ~ ( 3 + ) co - doped phosphate glass waveguide laser were summarized . the characteristics of er ~ ( 3 + ) / yb ~ ( 3 + ) co - doped phosphate glass were introduced . meanwhile , main methods of fabricating optical waveguide were presented briefly 本文首先论述了铒镱共掺磷酸盐玻璃光波导激光器的发展概况,阐述了铒镱共掺磷酸盐玻璃以及铒镱共掺磷酸盐玻璃光波导激光器的特点和在光通信技术中的应用,并简要介绍了制作光波导的几种方法。
Then considering the disadvantage of edfa and ydfa , the following works are accomplished , including fabricating er / yb co - doped phosphate glass material , testing each chemic and physical charicteristics of er / yb co - doped phosphate glass and designing double clading single mode fiber etc . after introducing gain theory of edfa and ydfa , the rate equation and propagation equation of er / yb co - doped phosphate glass fiber are simplified , and each factors relating to the gain of fiber amplifiers , such as fiber leghth , pumping power , signal power and wavelegth , ion concentration etc . are also described 在简要介绍掺铒光纤放大器和掺镱光纤放器增益理论之后,从铒镱共掺光纤铒镱离子的速率方程出发,对铒镱共掺的速率方程和传播方程进行简化,分析了光纤长度,泵浦功率、信号波长及离子掺杂浓度等因素对铒镱共掺磷酸盐玻璃光纤增益的影响。阐述并分析了磷酸盐玻璃增益介质的各种物理和化学性质。
Based on the requirement and target of the projects , firstly , pcf bragg grating are investigated theoretically and experimentally . moreover , the effects of filling high refractive index material ( nematic liquid crystal , nlc ) in pcfs on the transmission mechanism and propagation properties are studied by using plane - wave method and finite - element method ( fem ) , farther , several novel pcfs are proposed and designed . lastly , we propose and demonstrate a clad - pumped er3 + / yb3 + - codoped fiber laser , which integrate all performances of broad - band tunable wavelength , uniform output power spectrum , high repeat frequency and high average power to together 本论文选题于国家973 、 863以及国家自然科学基金等项目,结合课题的要求和主要目标,在对光子晶体光纤( pcfs )传输特性研究的基础上,首先对光子晶体光纤光栅进行了理论和实验研究;然后,采用平面波展开法和有限单元法分析了在光纤的空气孔中填充高折射率液晶对光纤传导机制和传输特性的影响,提出并设计了几种新型光子晶体光纤;最后,提出并研制成功连续可调谐、输出功率谱均衡的全光纤化、高功率包层泵浦铒镱共掺光纤激光器实验样机。
