Yujie Li, Binbin Luo, Xue Zou, Shenghui Shi, Junhao Fan, Decao Wu, Huiji Chen, Xiangwen Yang, Hong Gu, Mingfu Zhao. Sensing Characteristics of Optical Vernier of Double‑Helix Micro‑Nano Optical Fiber Coupler[J]. Chinese Journal of Lasers, 2023, 50(14): 1406001