Highly reliable 1.3 [micro sign]m InGaAlAs buried-heterostructure laser fabricated with in-situ cleaning

An in-situ-cleaned and regrown 1.3 µm InGaAlAs buried-heterostructure laser was fabricated for the first time. The degradation of its driving current was about 1% after a 3000 h aging test. It can thus be concluded from this result that in-situ cleaning is a promising means of fabricating highly reliable, high-performance InGaAlAs BH lasers.