CHEN Gui-chu, FAN Guang-han. The Effect of Spontaneous Emission on AM Noise for Quantum Cascade Laser[J]. Chinese journal of luminescence, 2009, 30(3): 389-393.
CHEN Gui-chu, FAN Guang-han. The Effect of Spontaneous Emission on AM Noise for Quantum Cascade Laser[J]. Chinese journal of luminescence, 2009, 30(3): 389-393.DOI:
The noise properties of quantum cascade laser were investigated by using rate equations
which include the Langevin noise sources and the spontaneous emission factor
to make simulation calculation. The calculated results show that the intensity of noise and the 3dB cut-off frequency width simultaneously decrease
while increasing the spontaneous emission factor. The further research denotes that the spontaneous emission factor takes an obvious effect on the noise properties as the bias current is low
and this effect will be wea-kened by increasing the bias current.
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