Highly Strained InGaAs/GaAs Vertical-External-Cavity Surface-Emitting Laser for the Generation of Coherent Yellow-Orange Light

摘要

Optically pumped semiconductor vertical-external-cavity surface-emitting laser (VECSEL) potentially provides an innovative approach to low-cost frequency agile lasers engineered for specific applications in infrared and visible range. In this paper, we report on the development and demonstration of a multi-Watt highly strained InGaAs/ GaAs vertical-external-cavity surface-emitting laser (VECSEL), which can be tuned from 1147 nm to 1197 nm. Based on this tunable InGaAs/GaAs VECSEL and intracavity frequency doubling, we develop multi-Watt frequency-doubled tunable VECSEL in a wide yellow-orange band (579 ～595 nm). This compact high-power yellow-orange laser provides an innovative approach to an affordable guidestar laser (～589.1 nm) solution, and has a lot of important applications in biomedicine.