(Peer-Reviewed) Circular cladding waveguides in Pr:YAG fabricated by femtosecond laser inscription: Raman, luminescence properties and guiding performance
Quanxin Yang 杨全鑫 ¹, Hongliang Liu 刘洪亮 ¹ ² ⁵, Shan He 何珊 ¹, Qingyu Tian 田青玉 ⁴, Bin Xu 徐斌 ⁴, Pengfei Wu 武鹏飞 ¹ ³
¹ Institute of Modern Optics, Nankai University, Tianjin 300350, China
中国 天津 南开大学现代光学研究所
² Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Tianjin 300350, China
中国 天津 天津市光电传感器与传感网络技术重点实验室
³ Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China
中国 天津 天津市微尺度光学信息技术科学重点实验室
⁴ Department of Electronic Engineering, Xiamen University, Xiamen 361005, China
中国 厦门 厦门大学电子工程系
⁵ State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
中国 济南 山东大学 晶体材料国家重点实验室
Opto-Electronic Advances, 2021-02-28
Abstract
We report on the fabrication of circular cladding waveguides with cross-section diameters of 60−120 μm in Pr:YAG crystal by applying femtosecond laser inscription. The fabricated waveguides present 2D guidance on the cross-section and fairly low propagation losses. Multiple high-order guiding modes are observed in waveguides with different diameters. Corresponding simulation results reveal the origin of a specific kind of guiding modes.
Confocal micro-Raman (μ-Raman) experiments demonstrate the modification effects in femtosecond laser affected areas and ascertain the refractive index induced guiding mechanism. In addition, luminescence emission properties of Pr3+ ions at waveguide volume are well preserved during the femtosecond laser inscription process, which may result in a potential high-power visible waveguide laser.
Meta-lens digital image correlation
Zhou Zhao, Xiaoyuan Liu, Yu Ji, Yukun Zhang, Yong Chen, Zhendong Luo, Yuzhou Song, Zihan Geng, Takuo Tanaka, Fei Qi, Shengxian Shi, Mu Ku Chen
Opto-Electronic Advances
2025-07-29
Broadband ultrasound generator over fiber-optic tip for in vivo emotional stress modulation
Jiapu Li, Xinghua Liu, Zhuohua Xiao, Shengjiang Yang, Zhanfei Li, Xin Gui, Meng Shen, He Jiang, Xuelei Fu, Yiming Wang, Song Gong, Tuan Guo, Zhengying Li
Opto-Electronic Science
2025-07-25
Review for wireless communication technology based on digital encoding metasurfaces
Haojie Zhan, Manna Gu, Ying Tian, Huizhen Feng, Mingmin Zhu, Haomiao Zhou, Yongxing Jin, Ying Tang, Chenxia Li, Bo Fang, Zhi Hong, Xufeng Jing, Le Wang
Opto-Electronic Advances
2025-07-17
