Distributed feedback laser diodes

Distributed feedback laser diodes (DFBs) are semiconductor-based lasers that integrate a grating structure inside the gain chip to stabilise the laser at a fundamental level, and ensure high quality single mode, narrow linewidth output. They are a versatile, cost-effective solution for any application that wants to move away from bulkier benchtop systems to a more compact industrial set-up, covering a broad wavelength range from 1100nm to 1700nm. Applications include gas sensing, strain measurement and quantum technologies (atom and ion trapping).