Szukana fraza: [Abstrakt = "A comprehensive model of an operation of vertical\-cavity surface\-emitting diode lasers \(VCSELs\) is used to simulate the operation of modern GaAs\-based oxide\-confined double intra\-cavity contacted GaInNAs\/GaAs quantum\-well VCSELs emitting the 1.3\-μm radiation. An impact of various detuning of the cavity mode with respect to a maximal active\-region optical gain on VCSEL performance characteristics is examined. In particular, high\-temperature VCSEL operation is investigated. Properly detuned VCSELs have been found to exhibit nearly constant lasing threshold within quite a wide range of ambient temperatures. In such temperature\-insensitive VCSELs with relatively small 4 μm active regions, threshold currents change from 0.84 mA to 1.10 mA, i.e., only by 22%, within quite a wide range of ambient temperatures between 300 K and 360 K."]

Wyników: 1