A Single-Chip Integrated Spectrometer via Tunable Microring Resonator Array

A Single-Chip Integrated Spectrometer via Tunable Microring Resonator Array

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 larg...

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Bibliographic Details
Main Authors: Shaonan Zheng, Hong Cai, Junfeng Song, Jun Zou, Patricia Yang Liu, Zhiping Lin, Dim-Lee Kwong, Ai-Qun Liu
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Photonics Journal
Subjects:
Integrated optics
microring resonator
silicon photonics
sensing
spectroscopy
thermo-optic effect
Online Access:https://ieeexplore.ieee.org/document/8825464/
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Summary: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 &#x00B1; 0.029 nm) and large bandwidth (25.4 nm) in 9 channels with a small footprint of 3 &#x00D7; 3 mm<sup>2</sup>. It has high potential to enable a high-performance spectrometer for applications such as environmental monitoring, spectroscopy, biological and chemical sensing, etc.
ISSN:1943-0655

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