A RGB random laser on an optical fiber facet

Abstract

A red-green-blue (RGB) random laser consisting of three polymer layers and two isolated layers is fabricated on an optical fiber end facet by a dip-coating method. The total thickness of the laser device is approximately 3600 nm. Silver nanoparticles are embedded in each of the three polymer layers and provide strong plasmonic enhancement of the pump light. Simultaneous RGB plasmonic random lasing is observed within the multilayer structure located on the fiber end facet under pulsed optical pumping conditions. The results reported here can be used directly in the design of compact laser sources and laser-based sensors.