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14 March 2018 Ultrasensitive micro-scale parity-time-symmetric ring laser gyroscope (Conference Presentation)
Mercedeh Khajavikhan, Mohammad Soltani, Demetrios Christodoulides, Jinhan Ren, Hossein Hodaei, Gal Harari, Weng Chow
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Proceedings Volume 10548, Steep Dispersion Engineering and Opto-Atomic Precision Metrology XI; 1054810 (2018) https://doi.org/10.1117/12.2297066
Event: SPIE OPTO, 2018, San Francisco, California, United States
Abstract
A new scheme for ultrasensitive laser gyroscopes that utilizes the physics of exceptional points will be presented. By exploiting the properties of such non-Hermitian degeneracies, we show that the rotation-induced frequency splitting becomes proportional to the square root of the gyration speed (√𝛀)- thus enhancing the sensitivity to low angular rotations by orders of magnitudes. In addition, at its maximum sensitivity limit, the measurable spectral splitting is independent of the radius of the rings involved. Our work paves the way towards a new class of ultrasensitive miniature ring laser gyroscopes on chip.
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Mercedeh Khajavikhan, Mohammad Soltani, Demetrios Christodoulides, Jinhan Ren, Hossein Hodaei, Gal Harari, and Weng Chow "Ultrasensitive micro-scale parity-time-symmetric ring laser gyroscope (Conference Presentation)", Proc. SPIE 10548, Steep Dispersion Engineering and Opto-Atomic Precision Metrology XI, 1054810 (14 March 2018); https://doi.org/10.1117/12.2297066
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KEYWORDS
Gyroscopes
Physics
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