A single-chip integrated spectrometer via tunable microring resonator array

• Main Authors: Zheng, Shaonan, Cai, Hong, Song, Junfeng, Zou, Jun, Liu, Patricia Yang, Lin, Zhiping, Kwong, Dim-Lee, Liu, Ai-Qun
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Electrical and electronic engineering; Integrated Optics; Microring Resonator
• Online Access: https://hdl.handle.net/10356/147089
• Institution: Nanyang Technological University

We experimentally demonstrate a spectrometer, which consists of an arrayed waveguide grating (AWG), tunable microring resonator (MRR) array, and waveguide-coupled Ge-on-Si photodetector, all integrated onto a single chip. The spectrometer achieves high resolution (0.1 ± 0.029 nm) and large bandwidth...