(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.
A 4096-element 3D-integrated Si-SiN optical phased array for high-power coherent LiDAR
Han Wang, Weimin Xie, Xin Yan, Jiaqi Li, Youxi Lu, Ping Jiang, Feng Li, Kai Jin, Xu Yang, Jiali Jiang, Keran Deng, Weishuai Chen, Jing Luo, Li Jin, Junbo Feng, Kai Wei
Opto-Electronic Technology
2026-03-20
High-speed and large-capacity visible light communication for 6G: advances and perspectives
Nan Chi, Zhilan Lu, Fujie Li, Haoyu Zhang, Yunkai Wang, Xinyi Liu, Zhiwu Chen, Zhe Feng, Zhuoran Hu, Zhixue He, Ziwei Li, Chao Shen, Junwen Zhang
Opto-Electronic Technology
2026-03-20
Holotomography-driven learning unlocks in-silico staining of single cells in flow cytometry by avoiding fluorescence co-registration
Daniele Pirone, Giusy Giugliano, Michela Schiavo, Annalaura Montella, Martina Mugnano, Vincenza Cerbone, Maddalena Raia, Giulia Scalia Ivana Kurelac, Diego Luis Medina, Lisa Miccio Mario Capasso, Achille Iolascon, Pasquale Memmolo, Pietro Ferraro
Opto-Electronic Science
2026-02-25
A hybrid integrated high-precision tunable semiconductor laser
Yiran Zhu, Botao Fu, Zhiwei Fang, Qiyue Hu, Jianping Yu, Yunpeng Song, Yu Ma, Min Wang, Kunpeng Jia, Zhenda Xie, Ya Cheng
Opto-Electronic Advances
2026-02-12
