A new mechanism is described that is based on the modulation of the confinement factor with carrier density in quantum-well lasers. This new mechanism may limit modulation bandwidth for quantum-well laser with high threshold carrier density and narrow confining layer.
Seoyong Shin
and Chin B. Su
"Bandwidth reduction due to confinement factor modulation in quantum-well lasers", Proc. SPIE 1850, Laser Diode Technology and Applications V, (16 June 1993); doi: 10.1117/12.146923; https://doi.org/10.1117/12.146923
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Seoyong Shin, Chin B. Su, "Bandwidth reduction due to confinement factor modulation in quantum-well lasers," Proc. SPIE 1850, Laser Diode Technology and Applications V, (16 June 1993);