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Analysis of mode broadening due to transient heating of optically pumped semiconductor lasers

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3 Author(s)
Figueroa, L. ; University of California, Berkeley, CA, USA ; Botez, D. ; Wang, Shyh

We have found that the output spectra of cleaved semiconductor lasers are broadened when they are optically excited with a high-energy pulsed laser. We believe the effect is due to transient heating. A one-dimensional heat-flow equation has been solved, and the results are applied to two representative cases, GaAs and PbTe. Good agreement is obtained between the calculated broadening and the experimentally observed values.

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Quantum Electronics, IEEE Journal of  (Volume:13 ,  Issue: 8 )