Research progress on large-scale passive laser gyroscopes operated at 532 nm

15 Jun 2023, 11:20
30m
Room "Galileo Galilei"

Room "Galileo Galilei"

Physics Department Building C
Oral Status of large frame Ring Laser Gyroscopes Large Laser Gyroscope

Speaker

Yuxuan Chen (Huazhong University of Science and Technology)

Description

Large-scale laser gyroscopes are precise devices for angular velocity measurement based on Sagnac effect, and their performance is positively related to the scale factor. To obtain a higher rotational resolution, we develop a large-scale-factor green laser gyro with a size of 8-meter by 8-meter in Wuhan, China, operated at a wavelength of 532 nm. The expected Sagnac frequency is 556.7 Hz. The cavity Q-factor is inferred to be $2.8×10^{12}$ via an estimated mirror loss of 34 ppm each. At the same time, its twin, the 10-meter by 10-meter green-light-gyro, is also being prepared at Sun Yat-sen University in Zhuhai, China. This talk will focus on the scheme design and noise evaluation of these two setups.

Primary author

Yuxuan Chen (Huazhong University of Science and Technology)

Co-authors

Kui Liu (Sun Yat-sen University) Ms Xiaohua Feng (Huazhong University of Science and Technology) Haobo Zhang (Huazhong University of Science and Technology) Yuhong Zhong (Huazhong University of Science and Technology) Ms Jinpei Yao (Huazhong University of Science and Technology) Ms Yawen Liu (Huazhong University of Science and Technology) Prof. Zehuang Lu (Huazhong University of Science and Technology) Prof. Jie Zhang (Huazhong University of Science and Technology)

Presentation materials