Frequency-locked optical microresonator noise analysis

Shuang Hao; Judith Su

doi:10.1117/12.2578689

11 March 2021 Frequency-locked optical microresonator noise analysis

Shuang Hao, Judith Su

Proceedings Volume 11635, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXI; 116350I (2021) https://doi.org/10.1117/12.2578689
Event: SPIE BiOS, 2021, Online Only

Abstract

Whispering gallery mode (WGM) optical microresonators with high quality (Q) factors have been widely used to sense biomolecules due to their small mode volume and narrow linewidth resonance. Previously, we reported a frequency locked optical whispering evanescent resonator (FLOWER) system for real time single macromolecule detection. Here, we explore the detection limit of FLOWER via numerical simulation based on coupled mode theory. These results predict that frequency locked microcavities with ultra-high-Q can detect resonance shifts as small as 0.05 attometers at 1 millisecond time interval and are limited by shot noise and laser intensity noise.

Conference Presentation

Citation Download Citation

Shuang Hao and Judith Su "Frequency-locked optical microresonator noise analysis", Proc. SPIE 11635, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXI, 116350I (11 March 2021); https://doi.org/10.1117/12.2578689

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