【摘要】 对光纤马赫－曾德干涉仪及影响其输出稳定性的各种因素进行了分析，提出了消除这些影响的信号处理方案，并通过建立光纤干涉磁强计加以验证。结果表明，所提出的信号处理方案可以有效地消除由于光功率、光频和光的偏振态改变引起的输出不稳定。更多还原

【Abstract】 The principle of a fiber-optic Mach-Zehnder interferometer is described and various fac-tors affecting the output stability are discussed.A method with signal processing for elimi-nating the effect of these factors is proposed and verified with a fiber-optic interfero-magne-tometer developed.It is shown that the instability induced by.the variation of the laser pow-er,laser frequency and state of polarization can be effectively overcome.更多还原