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Dynamic P-I and P-V Curves for Semiconductor Lasers and Modulators

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5 Author(s)
Ning Hua Zhu ; State Key Lab. on Integrated Optoelectron., Inst. of Semicond., Beijing ; Qi Qi Ge Hasen ; Hong Guang Zhang ; Ji Min Wen
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In this paper, we propose the dynamic P-V curve for modulator and P-I curve for laser diode, and present a simple approach to deriving the curves from the small-signal frequency responses measured using a microwave network analyzer. The linear response range, modulation efficiency, optimal driving conditions at different frequency can, therefore, be determined. It is demonstrated that the large-signal performance of electro-absorption (EA) modulator and the directly modulated semiconductor lasers can be predicted from the dynamic curved surface. Experiments show a good agreement between the evaluated characteristics and the measured large-signal performance.

Published in:

Journal of Lightwave Technology  (Volume:26 ,  Issue: 19 )