Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

Quantum Cascade Laser Amplifier Developed

Photonics Spectra
Sep 2002
Scientists from Bell Labs in Murray Hill, N.J., have developed an amplifier for quantum cascade lasers that can achieve high-power single-mode emission at a wavelength of 7.4 µm.

They used an InGaAs/InAlAs/InP semiconductor amplifier, also based on quantum cascade technology, to attain both high-power emission and improved beam quality from a quantum cascade distributed feedback laser. As described in the June 3 issue of Applied Physics Letters, the amplifier realized peak optical powers of 0.5 W at a temperature of 80 K. In addition, the apparatus showed single-mode operation with a side-mode suppression ratio of 30 dB at temperatures ranging from 10 to 280 K, which allowed the researchers to tune the emission wavelength in the 7.36- to 7.46-µm range.

Research & TechnologyTech Pulselasers

Terms & Conditions Privacy Policy About Us Contact Us
back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2019 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,

Photonics Media, Laurin Publishing
x Subscribe to Photonics Spectra magazine - FREE!
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.