Temperature dependences of metal-clad subwavelength semiconductor lasers (MCSELs): geometric invariance and the spontaneous emission factor

2014 ◽  
Author(s):  
Joseph S. T. Smalley ◽  
Qing Gu ◽  
Matthew Puckett ◽  
Yeshaiahu Fainman
Keyword(s):  
Semiconductor Lasers ◽  
Spontaneous Emission ◽  
Emission Factor ◽  
Geometric Invariance ◽  
Temperature Dependences ◽  
Spontaneous Emission Factor

Measurement of the spontaneous emission factor of a 3.39 μm HeNe laser

1994 ◽  
Vol 107 (3-4) ◽  
pp. 249-254 ◽  
Author(s):  
S.J.M. Kuppens ◽  
H. van Kampen ◽  
M.P. van Exter ◽  
J.P. Woerdman
Keyword(s):  
Spontaneous Emission ◽  
Emission Factor ◽  
Hene Laser ◽  
Spontaneous Emission Factor

Investigation the dynamic of nano quantum cascade lasers with optoelectronics feedback

2021 ◽  
Vol 2 (2) ◽  
pp. 48-56
Author(s):  
Akram Ghani Mohammed ◽  
Hussein Hadi Waried
Keyword(s):  
Spontaneous Emission ◽  
Emission Factor ◽  
Quantum Cascade Lasers ◽  
Photon Number ◽  
Small Variation ◽  
Equation Model ◽  
Purcell Factor ◽  
Quantum Cascade ◽  
Spontaneous Emission Factor ◽  
Cascade Lasers

In this paper, a theoretical investigation of negative optoelectronic feedback study in Nano quantum cascade lasers is presented. The present rate equation model has been modified to include the nano laser factors such as the Purcell factor and the spontaneous emission factor. The results indicate that the present rate equation model can be using to study the effect of Purcell factor and the spontaneous emission factor on the negative optoelectronic feedback in Nano quantum cascade lasers. It is found that the increase in Purcell factor value leads to increase in photon number and decrease the carrier number in all quantum states. Also, the dynamic of photon number (S) tends to stable at constant value with the increase of Purcell effect i.e. there is small variation in photon number and carrier number( , , ). The decreases in enhanced spontaneous emission factor value leads to increases in carrier number and decreases the photon number and we note small variation in these values.

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