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Design Optimization for High-Performance Self-Assembled Quantum Dot Lasers With Fabry–Perot Cavity

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5 Author(s)
Lanxin Deng ; Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, ON, Canada ; Lin Han ; Yanping Xi ; Xun Li
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An optimization guideline is proposed for designing of the single longitudinal-mode Fabry-Perot (FP) laser based on the self-assembled InGaAs/GaAs quantum dots (QD). With the optimal values of the inhomogeneous and homogeneous gain-broadening parameters, a design example is simulated and analyzed. It shows that a side-mode suppression ratio (SMSR) over 40 dB and a 3-dB bandwidth of 17 GHz for the small-signal modulation response are obtained. The quantitative conditions for the performance feasibility are examined with respect to the gain broadening parameters.

Published in:

Photonics Journal, IEEE  (Volume:4 ,  Issue: 5 )

Date of Publication:

Oct. 2012

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