Experiments were designed and analyzed on the effects of mode filter,mode conditioner,scrambler on the power stability,power loss and optical field of multimode laser source,as well as on the insertion loss measurement repeatability of multimode optical attenuator.The experimental results show that mode controller can cause deterioration of the stability of laser source and a large loss of optical pow-er,so it is not suitable for the application of large dynamic range.Moreover,the improvement effect on the measurement repeatability of insertion loss is not optimal.However,the mode scrambler can improve the stability of laser source with low power loss and improve the measurement repeatability of insertion loss at the same time,which reveals the neglected influence of different mode control methods on the measurement of multimode optical parameters.
mode controlmultimode lasermode conditionermode scramblerstabilityinsertion loss
NETL
NSTL
万方数据
