Study of the absorption coefficient in layers of a semiconductor laser heterostructure

Abstract

Cooperative software engineering typically involves many actors and resources that cooperate in a complex distributed and heterogeneous world. In the DIPS (Distributed Integrated Process Services) project, a three-dimensional model is used for the definition, enactment and tracing of software development processes, which expresses both structure and evolution of such processes. This paper discusses how an optimal architecture was evaluated to implement the process model in a process support framework. Process-specific and general requirements are identified, and expected usage patterns of a DIPS-based environment are analysed. A set of potential architecture variants is proposed, and implications of the requirements and usage patterns on the variants are discussed qualitatively. An evaluation of the architecture alternatives leads to the design of the hybrid DIPS architecture based on distributed heterogeneous objects. The prototype DIPS implementation is briefly outlined.

Internal optical loss and internal quantum efficiency of a high-power GaAs laser operating in the CW mode

“…In a number of our preceding experimental studies [9,10], we suggested a procedure for studying the internal optical loss in a laser at high currents in a wide temperature range. This procedure consisted of using a probe optical light introduced into the waveguide of a sample laser under study through one of mirrors of its cavity, passed along the whole cavity, and was collected upon the egress from the opposite mirror, separated from the self emission of a sample, and registered by a high-speed photodetector.…”