Single-Frequency Lasers

Thorlabs offers a number of tunable, single-frequency lasers (SFL) with very narrow linewidths. These laser diodes are made in-house at Thorlabs' semiconductor manufacturing facility. Several types are available, including Distributed Bragg Reflector (DBR), Distributed Feedback (DFB), Volume-Holographic-Grating Stabilized (VHG), and External Cavity Lasers (ECL).