Micro-ring resonator quality factor enhancement via an integrated Fabry-Perot cavity

Jiayang Wu; Tania Moein; Xingyuan Xu; Guanghui Ren; Arnan Mitchell; David J. Moss

doi:10.1063/1.4981392

Micro-ring resonator quality factor enhancement via an integrated Fabry-Perot cavity

Jiayang Wu, Tania Moein, Xingyuan Xu, Guanghui Ren, Arnan Mitchell, David J. Moss

Research output: Contribution to journal › Article › Research › peer-review

59 Citations (Scopus)

Abstract

We propose and experimentally demonstrate the enhancement in the filtering quality (Q) factor of an integrated micro-ring resonator (MRR) by embedding it in an integrated Fabry-Perot (FP) cavity formed by cascaded Sagnac loop reflectors. By utilizing coherent interference within the FP cavity to reshape the transmission spectrum of the MRR, both the Q factor and the extinction ratio (ER) can be significantly improved. The device is theoretically analyzed and practically fabricated on a silicon-on-insulator wafer. Experimental results show that up to 11-times improvement in the Q factor, together with an 8-dB increase in the ER, can be achieved via our proposed method. The impact of varying structural parameters on the device performance is also investigated and verified by the measured spectra of the fabricated devices with different structural parameters.

Original language	English
Article number	056103
Number of pages	7
Journal	APL Photonics
Volume	2
Issue number	5
DOIs	https://doi.org/10.1063/1.4981392
Publication status	Published - May 2017
Externally published	Yes

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abstract = "We propose and experimentally demonstrate the enhancement in the filtering quality (Q) factor of an integrated micro-ring resonator (MRR) by embedding it in an integrated Fabry-Perot (FP) cavity formed by cascaded Sagnac loop reflectors. By utilizing coherent interference within the FP cavity to reshape the transmission spectrum of the MRR, both the Q factor and the extinction ratio (ER) can be significantly improved. The device is theoretically analyzed and practically fabricated on a silicon-on-insulator wafer. Experimental results show that up to 11-times improvement in the Q factor, together with an 8-dB increase in the ER, can be achieved via our proposed method. The impact of varying structural parameters on the device performance is also investigated and verified by the measured spectra of the fabricated devices with different structural parameters.",

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AU - Wu, Jiayang

AU - Moein, Tania

AU - Xu, Xingyuan

AU - Ren, Guanghui

AU - Mitchell, Arnan

AU - Moss, David J.

PY - 2017/5

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AB - We propose and experimentally demonstrate the enhancement in the filtering quality (Q) factor of an integrated micro-ring resonator (MRR) by embedding it in an integrated Fabry-Perot (FP) cavity formed by cascaded Sagnac loop reflectors. By utilizing coherent interference within the FP cavity to reshape the transmission spectrum of the MRR, both the Q factor and the extinction ratio (ER) can be significantly improved. The device is theoretically analyzed and practically fabricated on a silicon-on-insulator wafer. Experimental results show that up to 11-times improvement in the Q factor, together with an 8-dB increase in the ER, can be achieved via our proposed method. The impact of varying structural parameters on the device performance is also investigated and verified by the measured spectra of the fabricated devices with different structural parameters.

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Micro-ring resonator quality factor enhancement via an integrated Fabry-Perot cavity

Abstract

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