Nonlinear enhanced microresonator gyroscope
| Autor: | Pascal Del'Haye, Kenneth T. V. Grattan, Jonathan M. Silver, Shuangyou Zhang, Leonardo Del Bino, Michael T. M. Woodley, Niall Moroney, George N. Ghalanos, Andreas Ø. Svela |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
Sagnac effect TL business.industry TK Gyroscope Chip Rotation 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Responsivity Optics law Q factor 0103 physical sciences 010306 general physics business Phase modulation Inertial navigation system |
| Zdroj: | Optica |
| ISSN: | 2334-2536 |
| Popis: | Optical gyroscopes based on the Sagnac effect have been the mainstay of inertial navigation in aerospace and shipping for decades. These gyroscopes are typically realized either as ring-laser gyroscopes (RLGs) or fiber-optic gyroscopes (FOGs). With the recent rapid progress in the field of ultrahigh-quality optical whispering-gallery mode and ring microresonators, attention has been focused on the development of microresonator-based Sagnac gyroscopes as a more compact alternative to RLGs and FOGs. One avenue that has been explored is the use of exceptional points in non-Hermitian systems to enhance the responsivity to rotation. We use a similar phenomenon, namely, the critical point of a spontaneous symmetry-breaking transition between counterpropagating light, to demonstrate a microresonator gyroscope with a responsivity enhanced by a factor of around 10 4 . We present a proof-of-principle rotation measurement as well as a characterization of the system’s dynamical response, which shows the universal critical behaviors of responsivity enhancement and critical slowing down, both of which are beneficial in an optical gyroscope. We believe that this concept could be used to realize simple and cheap chip-based gyroscopes with sensitivities approaching those of today’s RLGs and FOGs. |
| Databáze: | OpenAIRE |
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