人工晶体学报2024，Vol.53Issue(3)：458-464,7.
飞秒激光直写铌酸锂晶体半包层光波导
Femtosecond Laser Direct Writing of Lithium Niobate Crystal Semi-Cladding Optical Waveguide
摘要
Abstract
In this paper,the semi-cladding waveguides with diameters of 30,40 and 50 μm were successfully prepared in lithium niobate(LiNbO3)crystals by femtosecond laser micro-nano-processing technology.Their waveguiding performances were tested by the end-face coupling technique,which results in the waveguides having excellent transmission performances at the wavelengths of 633 and 1 550 nm.The guidance is valid only for TM polarization with the single-polarized nature.By calculating the transmission loss of the waveguide,it is concluded that the 30 μm diameter waveguide has the best transmission performance at 633 and 1 550 nm wavelengths.The experimental results are proved to be reasonable by theoretical calculations using Rsoft software.The results of this study provide an important reference for the design and performance optimization of optical waveguides,and have certain experimental and theoretical value.关键词
飞秒激光微纳加工/光波导/铌酸锂晶体/半包层波导/1 550 nm波导/单偏振态Key words
femtosecond laser micromachining/optical waveguide/lithium niobate crystal/semi-cladding waveguide/1 550 nm waveguide/single polarization state分类
航空航天引用本文复制引用
段雨濛,贾曰辰,吕金蔓..飞秒激光直写铌酸锂晶体半包层光波导[J].人工晶体学报,2024,53(3):458-464,7.基金项目
国家自然科学基金(20211062020035,12134009) （20211062020035,12134009）
