Study on noise enhancement injection in laser gyroscopes based on random noise variation rates Shicai Bai, Jiajun Ma, Yuxin Xu, Hui Gao, Wenzheng Xu and Jun Meng EPL, 143 6 (2023) 65002 Published online: 02 October 2023 DOI: 10.1209/0295-5075/acf87c