See our Narrow-Linewidth Semiconductor Lasers, featuring Visible Distributed Feedback Laser Diode, Ultra-Narrow Laser Modules, and customizable packages. A distributed feedback laser is a type of semiconductor laser diode designed to emit coherent, narrow-bandwidth light with precise control over the wavelength. This design ensures elevated wavelength stability and a narrow linewidth. By adjusting the pitch of the. A laser is a device that emits light (electromagnetic radiation) through a process of optical amplification based on the stimulated emission of excited atoms or ions. In contrast to thermal light sources like incandescent lamps or LEDs, which emit incoherent light in all directions, lasers. They are used for high-performance gas sensing applying tunable diode laser spectroscopy. Applications include power plants, gas pipelines and emission control systems as well as airborne and satellite applications.
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