Femtosecond laser-inscribed optical waveguides in dielectric crystals:a concise review and recent advances

作     者：Lingqi Li Weijin Kong Feng Chen 

作者机构：Qingdao UniversityCollege of Physics ScienceCenter for Marine Observation and CommunicationsQingdaoChina Shandong UniversitySchool of PhysicsState Key Laboratory of Crystal MaterialsJinanChina 

出 版 物：《Advanced Photonics》 (先进光子学（英文）)

年 卷 期：2022年第4卷第2期

页      面：23-51页

核心收录：

学科分类：080901[工学-物理电子学] 070207[理学-光学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 12174222 and 61775120) the Natural Science Foundation of Shandong Province (ZR2021ZD02) Taishan Scholars Program of Shandong Province 

主　　题：femtosecond laser writing femtosecond laser inscription optical waveguides dielectric crystals laser crystals nonlinear optical crystals waveguide lasers frequency/wavelength conversion quantum photonic chip quantum memories 

摘      要：Femtosecond laser inscription or writing has been recognized as a powerful technique to engineer various materials toward a number of *** efficient modification of refractive indices of dielectric crystals,optical waveguides with diverse configurations have been produced by femtosecond laser *** waveguiding properties depend not only on the parameters of the laser writing but also on the nature of the *** mode profile tailoring and polarization engineering are realizable by selecting appropriate fabrication *** addition,regardless of the complexity of crystal refractive index changes induced by ultrafast pulses,several three-dimensional geometries have been designed and implemented that are useful for the fabrication of laser-written photonic *** intriguing devices,e.g.,waveguide lasers,wavelength converters,and quantum memories,have been made,exhibiting potential for applications in various *** work gives a concise review of the femtosecond laser-inscribed waveguides in dielectric crystals and focuses on the recent advances of this research area,including the fundamentals,fabrication,and selected photonic applications.