Advances in narrow linewidth diode lasers

Abstract

The era of smart travel has arrived, and the need for high precision lidar detection technology is increasing. With the advantages of high resolution, a strong anti-active jamming ability, small volume, light weight, and low cost, new solid-state lidars can meet the requirements of intelligent cars in the future. A narrow linewidth diode laser is an ideal light source of solid-state lidars. The progress and development of narrow linewidth diode laser techniques can greatly improve the application of solid-state lidars. In this paper, the technology and development is described in detail. In addition, the design ideas, key fabrication technologies, and optical characteristics of various narrow linewidth diode lasers are analyzed and discussed. Finally, the developments of narrow linewidth diode lasers are proposed.