Title :
Measurement of Chirp Parameter and Modulation Index of a Semiconductor Laser Based on Optical Spectrum Analysis
Author :
Zhang, Tao ; Zhu, Ning Hua ; Zhang, Bang Hong ; Zhang, Xin
Author_Institution :
Inst. of Semicond., Acad. Sinica, Beijing
Abstract :
A novel and simple method for measuring the chirp parameter, frequency, and intensity modulation indexes of directly modulated lasers is proposed in a small-signal modulation scheme. A graphical approach is presented. An analytical solution to the measurement of low chirp parameters is also given. The measured results agree well with those obtained using the conventional methods
Keywords :
chirp modulation; intensity modulation; laser variables measurement; optical modulation; semiconductor lasers; chirp parameter; directly modulated laser; intensity modulation; modulation index; optical spectrum analysis; semiconductor laser; Chirp modulation; Equations; Frequency measurement; Frequency modulation; High speed optical techniques; Intensity modulation; Laser theory; Optical modulation; Phase modulation; Semiconductor lasers; Chirp parameter; frequency modulation (FM); intensity modulation (IM); optical spectrum; semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.890724
