【摘要】 本文介绍一种双频激光偏振保持光纤耦合器。将它用于采用稳频纵向塞曼激光器和具有高度内禀双折射的偏振保持光纤并应用光外差检测技术的全光纤传感系统,可使系统结构简单,光束耦合方便。更多还原

【Abstract】 A new two-frequency laser polarization maintaining fibre coupler is described. In the polarimetric fiber optic sensors, the longitudinal Zeeman laser, polarization maintaining fibre with high intrinsic birefringence and heterodyne signal processing technique are used, and thus the structure of this system is simple, and coupling of beams is convenient更多还原