一种降低反射式光纤电流计零漂的方法

摘要

提出了一种降低反射式光纤电流计零漂的方法。该方法通过倒向使用铌酸锂Y波导集成光学器件取代原系统中的耦合器及起偏器，提高了系统的偏振消光比。实验结果表明，倒向使用Y波导后，零漂从11.1A降低到1.58A。本文为推动反射式光纤电流计的实用化提供了理论和实验依据。%A method to reduce the drift of reflective fiber-optic current sensor (RFOCS)is proposed.By employing Y-waveguide to instead the coupler-polarizer part in the RFOCS system,the extinction ratio of the system is en-hanced.The experiment results show that the drift of the RFOCS is reduced from 11.1A to 1.58A after employing Y-waveguide,which provides the theoretical and experimental basis for the practical application of RFOCS.