Research on High Frequency direct Modulation of laser light source

A kind of Laser source with ATC, APC,ACC and modulation interface is introduced, we use the sine electric signal to complete direct modulation, the sine electric signal‘s frequency change from 50 MHz to 200 MHz,and the period is 0.5ms,then we use New focus 1161Photodetector which frequency response is 1 GHz to detect the output modulated light signal, the modulated light signal‘s frequency change from 50 MHz to 200 MHz, contrast with the electric signal, analyzing the factors which influence the light signal‘s modulation depth, through adjusting laser‘s output power and electric signal‘s peak, the light signal‘s modulation depth can reach 33% at last. Click here and insert your abstract text.