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Chirp characteristics of 10-Gb/s electroabsorption modulator integrated DFB lasers

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6 Author(s)
Yonggyoo Kim ; Dept. of Radio Eng., Korea Univ., Seoul, South Korea ; Hanlim Lee ; Jaehoon Lee ; Jaeho Han
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We present a complete large-signal dynamic model of electroabsorption modulator integrated (EAMI) distributed feedback (DFB) lasers using the time-dependent transfer matrix method. With this model, it is possible to analyze dynamic characteristics depending on optical feedback and spatial hole burning. Also, we can separately calculate the laser and modulator chirp including the voltage-dependent modulator chirp parameter, the grating phase at the end of the laser section, the length of the waveguide region, and electrical coupling. Therefore, our model can provide better predictions regarding the laser and modulator chirp. The calculated large-signal chirp using our model has similar characteristics to the measured large-signal chirp for 10-Gb/s EAMI-DFB lasers.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:36 ,  Issue: 8 )