首页|Generation and coherent characteristics analysis of la-ser phase modulation spectrum by cascaded phase modulators
Generation and coherent characteristics analysis of la-ser phase modulation spectrum by cascaded phase modulators
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
万方数据
Laser phase modulation spectrum with 25 frequency bands is generated by modulating a single frequency laser with two cascaded phase modulators(PMs)with driving voltage amplitudes at 3.2 V and 7.8 V,respectively.And the time delay self-heterodyne method is adopted to measure and analyze the coherent characteristics of the original single fre-quency laser light and the generated multi-frequency light from two phase modulation schemes.By comparison of la-ser linewidth,the experimental results show that the laser phase modulation does not change the coherent characteris-tics of each frequency band,and the laser phase modulation spectra benefit the performance optimization for the Rayleigh scattering based optical fiber sensing system.
Lü Lidong、GAO Qinghao、YONG Mingchao
展开 >
School of Electrical and Information Engineering,Anhui University of Technology,Maanshan 243002,China
万方数据
