中国物理B ›› 2024, Vol. 33 ›› Issue (1): 14208-14208.doi: 10.1088/1674-1056/ad0773
Quasi-anti-parity—time-symmetric single-resonator micro-optical gyroscope with Kerr nonlinearity
Jingtong Geng(耿靖童)1, Shuyi Xu(徐书逸)2, Ting Jin(靳婷)1, Shulin Ding(丁舒林)2, Liu Yang(杨柳)1,†, Ying Wang(王颖)1, and Yonggang Zhang(张勇刚)1,‡
- 1 College of Intelligent Systems Science and Engineering, Harbin Engineering University, Harbin 150001, China;
2 National Laboratory of Solid State Microstructures, School of Physics, and College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
Quasi-anti-parity—time-symmetric single-resonator micro-optical gyroscope with Kerr nonlinearity
Jingtong Geng(耿靖童)1, Shuyi Xu(徐书逸)2, Ting Jin(靳婷)1, Shulin Ding(丁舒林)2, Liu Yang(杨柳)1,†, Ying Wang(王颖)1, and Yonggang Zhang(张勇刚)1,‡
- 1 College of Intelligent Systems Science and Engineering, Harbin Engineering University, Harbin 150001, China;
2 National Laboratory of Solid State Microstructures, School of Physics, and College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
摘要： Parity—time (PT) and quasi-anti-parity—time (quasi-APT) symmetric optical gyroscopes have been proposed recently which enhance Sagnac frequency splitting. However, the operation of gyroscopes at the exceptional point (EP) is challenging due to strict fabrication requirements and experimental uncertainties. We propose a new quasi-APT-symmetric micro-optical gyroscope which can be operated at the EP by easily shifting the Kerr nonlinearity. A single resonator is used as the core sensitive component of the quasi-APT-symmetric optical gyroscope to reduce the size, overcome the strict structural requirements and detect small rotation rates. Moreover, the proposed scheme also has an easy readout method for the frequency splitting. As a result, the device achieves a frequency splitting 105 times higher than that of a classical resonant optical gyroscope with the Earth's rotation. This proposal paves the way for a new and valuable method for the engineering of micro-optical gyroscopes.
中图分类号: (Quantum optics)
- 42.50.-p