Photonic lattice-like waveguides in glass directly written by femtosecond laser for on-chip mode conversion

被引：1

作者：

王宇莹 ^{[1
]}

钟理京 ^{[2
]}

陈智 ^{[2
]}

谭德志 ^{[2
]}

方再金 ^{[3
]}

杨弈 ^{[4
]}

孙盛芝 ^{[5
]}

杨旅云 ^{[6
]}

邱建荣 ^{[1
,4
]}

机构：

[1] Ningbo Femto & Nano Laser Technology Co., Ltd.

[2] Zhejiang Lab

[3] Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology,Jinan University

[4] State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University

[5] Laboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University

[6] Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology

来源：

Chinese Optics Letters | 2022年 / 20卷 / 03期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

D O I：

暂无

中图分类号：

TN249 [激光的应用];

学科分类号：

摘要：

We report on a conceptually new type of waveguide in glass by femtosecond laser direct writing, namely, photonic latticelike waveguide [PLLW). The PLLW’s core consists of well-distributed and densified tracks with a sub-micron size of 0.62 μm in width. Specifically, a PLLW inscribed as hexagonal-shape input with a ring-shape output side was implemented to converse Gaussian mode to doughnut-like mode, and high conversion efficiency was obtained with a low insertion loss of 1.65 d B at 976 nm. This work provides a new freedom for design and fabrication of the refractive index profile of waveguides with sub-micron resolution and broadens the functionalities and application scenarios of femtosecond laser direct-writing waveguides in future 3 D integrated photonic systems.

引用

页码：62 / 66

页数：5

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