DFB pro lasers use a Distributed feedback (DFB) laser diode. This technical solution unites wide tunability and high output power. The frequency-selective element – a Bragg grating – is integrated into the chip itself and ensures continuous single-frequency operation. Due to the absence of alignment-sensitive components, DFB lasers exhibit an exceptional stability and reliability. The lasers work under the most adverse environmental conditions – even in the Arctic or in airborne experiments.

DFB lasers provide a long coherence length, typically 100m, which is a key enabler for applications such as interferometry.

Three laser heads, designed specifically for DFB lasers, accommodate different diode packages: the compact DFB pro and its “big brother” DFB pro L integrate discrete diodes. The DFB pro BFY integrates diodes in a butterfly-type package.

Owing to their wide continuous tuning range, DFB lasers lend themselves particularly well to applications in atomic and molecular physics, gas sensing, phase-shifting interferometry, and continuous-wave terahertz generation.

For a selection of available DFB/DBR laser diodes, please refer to the online stock list. If you are interested in a wavelength not shown there, please inquire – TOPTICA can provide customized DFB systems at virtually any wavelength between 760 nm and 3500 nm as well as at 633nm.