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Effects of hot phonons on carrier heating in quantum-well lasers

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4 Author(s)
Tsai, Chin-Yi ; Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA ; Lo, Yu‐Hwa ; Spencer, Robert M. ; Tsai, Chin-Yao

The hot phonon effects on carrier heating in quantum-well lasers are theoretically investigated. We show that the neglect of the finite lifetime of LO phonons will significantly underestimate the carrier energy relaxation time and thus underestimate the effect of carrier heating in quantum-wed lasers. We investigate the effects of carrier heating with hot phonons on the saturation and degradation of the resonant frequency in high-speed quantum-well lasers. The implications of the hot phonon effects on the design of high-speed quantum-well lasers are also discussed.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:7 ,  Issue: 9 )