1 December 2009 Theoretical stability analysis of quantum dash distributed Bragg reflector lasers
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Abstract
A detailed theoretical analysis of stability in a quantum dash distributed Bragg reflector (DBR) laser is presented under the small-signal condition. The influence of p-type doping and inhomogeneous line broadening on the hysteresis width of the quantum dash DBR laser is studied using a rate equation model that includes all of the multidiscrete energy levels in the valence and conduction bands. Our calculations show that a large hysteresis width is obtained by detuning the laser by ~10 meV above the ground state energy and doping the dashes by acceptor concentration NA=3.7×1017 cm-3. Also we find that a large self-pulsation frequency is obtained by detuning the laser by -15 meV from the ground state energy and doping the dashes by NA=2.5×1017 cm-3. The laser hysteresis width can be greatly reduced by doping the dashes with NA>1×1018 cm-3.
© (2009) Society of Photo-Optical Instrumentation Engineers (SPIE)
Omar Qasaimeh, Hadeel Y. Qasaimeh, "Theoretical stability analysis of quantum dash distributed Bragg reflector lasers," Optical Engineering 48(12), 124202 (1 December 2009). https://doi.org/10.1117/1.3275456 . Submission:
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