A matched compensation circuit for increase in modulation bandwidth of semiconductor lasers
Zhan Yushu Nie Wenqiang Zeng Xiaodong Shi Shunxiang (Dept. of Technical Physics, Xidian Univ., Xian, 710071)
An important factor limiting the modulation bnadwidth of a semiconductor laser is its high frequency circuit parameters. A matched compensation circuit is designed to reduce the effects of these circuit parameters and to realize impedance match between a signal source and a semiconductor laser. Theoretical analyses and experiments show that the modulation frerquency and bandwidth can be increased greatly.