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Operation of arsenide diode lasers at elevated temperatures

Czyszanowski T.

Optica Applicata

2001

Vol. 31, nr 2

301-311

Some design modification and optimisation of the GaAs/(AlGa)As separate-confinement-heterostructure (SCH) as well as the graded-index separate-confinement-heterostructure (GRIN-SCH) semiconductor lasers are discussed to reduce their threshold concentrations at elevated temperatures. A detailed optical model of arsenide lasers is used to compare an impact of some structural details on lasing thresholds at various temperatures. In the analysis, both optical gain and losses are modelled rigorously. It has been demonstrated that operation of the arsenide lasers considered is not changing dramatically at elevated temperatures not exceeding 400 K.