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On-chip Cavity-enhanced Fourier-transform Spectrometer
1, 2 , 2 , 2 , * 1
1  School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
2  Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-02 Innovis Tower, Singapore


A microring resonator (MRR) cavity-enhanced on-chip Fourier-transform spectrometer (FTS) is demonstrated. High resolution (1.7 nm) and large bandwidth (at least 100 nm) are achieved with the help of high-Q cavity. The on-chip spectrometer is very robust, cheap and compatible with other integrated photonic devices. It is promising to be applied in integrated photonic sensing and on-chip spectroscopy system.

Keywords: On-chip spectrometer, microring resonator, Fourier transform