Microring resonator-assisted Fourier transform spectrometer with enhanced resolution and large bandwidth in single chip solution

S. N. Zheng, J. Zou, H. Cai (), J. F. Song, L. K. Chin (), P. Y. Liu, Z. P. Lin, D. L. Kwong and A. Q. Liu ()
Additional contact information
S. N. Zheng: Nanyang Technological University
J. Zou: Nanyang Technological University
H. Cai: Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research)
J. F. Song: Jilin University
L. K. Chin: Nanyang Technological University
P. Y. Liu: Nanyang Technological University
Z. P. Lin: Nanyang Technological University
D. L. Kwong: Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research)
A. Q. Liu: Nanyang Technological University

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract Single chip integrated spectrometers are critical to bring chemical and biological sensing, spectroscopy, and spectral imaging into robust, compact and cost-effective devices. Existing on-chip spectrometer approaches fail to realize both high resolution and broad band. Here we demonstrate a microring resonator-assisted Fourier-transform (RAFT) spectrometer, which is realized using a tunable Mach-Zehnder interferometer (MZI) cascaded with a tunable microring resonator (MRR) to enhance the resolution, integrated with a photodetector onto a single chip. The MRR boosts the resolution to 0.47 nm, far beyond the Rayleigh criterion of the tunable MZI-based Fourier-transform spectrometer. A single channel achieves large bandwidth of ~ 90 nm with low power consumption (35 mW for MRR and 1.8 W for MZI) at the expense of degraded signal-to-noise ratio due to time-multiplexing. Integrating a RAFT element array is envisaged to dramatically extend the bandwidth for spectral analytical applications such as chemical and biological sensing, spectroscopy, image spectrometry, etc.

Date: 2019
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/s41467-019-10282-1 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10282-1

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-019-10282-1

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().