[1] Zhang W. Research on digital laser ranging technology[D]. Tianjin: Tianjin University(2010).
[2] Tang B, Cheng H. Application of distributed optical fiber sensing technology in surrounding rock deformation control of TBM-excavated coalmine roadway[J]. Journal of Sensors, 8010746(2018).
[6] Li Y J. Theoretical and experimental study of a 1.5 μm solid state laser pumped by a laser diode[D]. Taiyuan: Shanxi University(2013).
[9] Zhang H, Jin Y W, Li Y[J]. Time domain representation of frequency stability: Allan variance Industrial Measurement, 2001, 192-193.