Double tunable micro-ring enhanced Fourier transform spectrometer

Yanlu Wang; Zhiping Yang; Qiongchan Shao; Jian-Jun He; Mingyu Li

doi:10.1117/12.2573603

10 October 2020 Double tunable micro-ring enhanced Fourier transform spectrometer

Yanlu Wang, Zhiping Yang, Qiongchan Shao, Jian-Jun He, Mingyu Li

Proceedings Volume 11556, Nanophotonics and Micro/Nano Optics VI; 115560Q (2020) https://doi.org/10.1117/12.2573603
Event: SPIE/COS Photonics Asia, 2020, Online Only

Conference Poster

Abstract

It is a tradeoff between bandwidth and resolution for the on chip Fourier transform spectrometer. To solve this problem, a single ring filter enhanced on chip Fourier transform spectrometer was proposed recently. In this paper, the performance of the cascaded double-ring enhanced Fourier transform on chip spectrometer was investigated theoretically. The cascaded two tunable Micro-ring resonators forms a large narrow band filter with a larger free spectral range (FSR) than the single ring, which reduces the requirement of the Fourier transform spectrometer spectral resolution. The spectrum of the input is retrieved by the Fourier transform algorithm with dispersion correction. The cascaded doublering enhanced Fourier transform spectrometer has a high resolution (0.3 nm) and a large bandwidth (1500nm-1600nm). The fabrication process is compatibility with CMOS process. It can be easily integrated with other silicon-based optical devices.

Conference Presentation

Citation Download Citation

Yanlu Wang, Zhiping Yang, Qiongchan Shao, Jian-Jun He, and Mingyu Li "Double tunable micro-ring enhanced Fourier transform spectrometer", Proc. SPIE 11556, Nanophotonics and Micro/Nano Optics VI, 115560Q (10 October 2020); https://doi.org/10.1117/12.2573603

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