Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
SPECIAL ANNOUNCEMENT
2016 Photonics Buyers' Guide Clearance! – Use Coupon Code FC16 to save 60%!
Photonics Dictionary

distributed feedback (DFB) laser

A laser system in which feedback is used to make certain modes in the resonator oscillate more strongly than others. In semiconductor lasers, a periodic corrugation in the active layer replaces the cleaved end mirrors, and the grating spacing is chosen to distribute the feedback in both directions, creating a condition that can approach single-mode oscillation.
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x We deliver – right to your inbox. Subscribe FREE to our newsletters.