Related Experiment Video
Updated: Sep 12, 2025
Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
Published on: April 1, 2020
Multifunctional microring structures enabled by SiN for advanced optically pumped atomic technologies
Xiaoqin Meng1,2,3,4,5, Zhen Chai1,2,3,4,5, Yuting Xu1,2,3,4,5
1Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, China. zhenchai@buaa.edu.cn.
Abstract:
As quantum technology advances, integrated optical chips demonstrate extensive potential in quantum information processing, atomic system measurements, and precision sensing. This paper introduces a design for a highly integrated, robust, and easily fabricated multifunctional silicon nitride (SiN) array microring chip emitter for optically pumped atomic systems. The chip emits uniformly distributed circularly polarized light at 795 nm and vortex light at 778.1 nm (l = 3) with vertical radiation. Experimental results align closely with theoretical calculations. This device is anticipated to simultaneously achieve optical pumping of polarized atoms and laser frequency stabilization in atomic systems, offering a significant direction for developing chip-scale optical emitters in quantum applications. It holds the potential to play a crucial role in atomic clocks, quantum communication, and quantum sensing.
