Where to Buy Distributed Feedback Lasers

The PureSpectrum™ NLL is an ultra-low-noise, narrow linewidth semiconductor DFB laser for optical sensing applications like lidar and RF over fiber. The laser and its control electronics are integrated into a single module that uses precision feedback monitoring to provide ultra low-noise performance and superior wavelength stability. The built-in, sharp-edged frequency discriminator significantly reduces linewidth while maintaining single-mode operation across the full operating temperature range. The model also offers fast frequency tuning, which enables frequency-modulated continuous-wave sensing.

Alpes Lasers offers single-mode, tunable DFB lasers with wavelengths from 4 to 14 μm and powers up to hundreds of milliwatts. These lasers are able to emit a single wavelength at a time. They can be tuned within a range that can reach up to 10 cm⁻¹; there exists a variety of modulation schemes which can be used for different purposes.

Frankfurt Laser Company offers wavelength-stabilized DFB laser diodes with emission wavelengths from 760 nm to 3640 nm.

RPMC Lasers offers a wide selection of distributed feedback lasers (DFB), including quantum cascade lasers (QCLs). Available in NIR, SWIR, and LWIR wavelengths, these single-mode DFB laser diodes offer a mode-hop-free tunable, single-frequency output and are available in both free-space and fiber-coupled configurations, as well as fully turnkey options for the QCLs. DFB lasers are perfect for gas sensing, DIAL, IR absorption spectroscopy, interferometry, and night vision applications.

Distributed feedback lasers are single-mode lasers containing an integrated grating structure. The result is a single-mode emission at an outmost precise wavelength with an extremely narrow linewidth. eagleyard provides the largest variety of wavelengths available on the market. Find your suitable DFB laser product between 633 and 1083 nm with output powers from 10 to 150 mW.

The Koheras narrow linewidth, single-frequency fiber lasers are ultra-low noise sources with longitudinal single mode and single frequency operation. The lasers are based on a DFB design ensuring robust and reliable operation and are delivered as fully integrated systems for industrial and scientific applications. Koheras offers an unprecedented low phase- and intensity noise level at Yb, Er and Tm wavelengths. It has a very high stability, and mode-hop free inherent single frequency output – even when exposed to changing environmental conditions. You can also get shot noise limited solutions for applications demanding an extra low intensity noise level.

Distributed feedback lasers (DFB lasers) simultaneously provide smooth, tunable control of wavelength and the extremely narrow spectral width required for precise fiber optic communication and spectroscopy applications. Integrated modules provide further narrowing of the spectral line in a compact OEM package that features simple tuning interface.

G&H offers a broad range of DFB lasers in the C-band and L-band on 50 or 100 GHz channel spacing as well as at 1310 nm, 1064 nm, and custom wavelengths. Power level options include 40–100 mW out of the fiber for high power 14-pin lasers and 10-18 mW options for high bandwidth 7-pin configurations.

TOPTICA’s DLC DFB pro lasers integrate both distributed-feedback (DFB) and distributed Bragg reflector (DBR) lasers. Available wavelengths include 633 nm and the entire range from 760 nm to 3500 nm. Three laser heads accommodate different diode packages. Due to the absence of alignment-sensitive components, the DLC DFB pro lasers exhibit an exceptional stability and reliability.