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

Bell Labs Claims Record for Mid-IR Diode Laser
Mar 1999
ATLANTA, Ga., March 23 -- Bell Labs has unveiled what it says is the world's highest-power mid-infrared semiconductor laser. According to the Lab's Claire Gmachl, the experimental quantum-cascade laser has more than a thousand times the output power of any commercial semiconductor laser operating in the mid-infrared wavelength region.
Pulsed at room temperature, it produces about half a watt of power; in continuous-wave operation and cooled to about 100 degrees below zero Fahrenheit, it produces a full watt. QC lasers operate via electrons cascading down an energy staircase, producing photons as they hit each step along the way. Gmachl demonstrated that adding stages to QC lasers increases their output power. Electrons in the new laser cascade down 75 steps instead of 20 or 30 as in earlier QC lasers.

News & Featuressemiconductor laserslasers

Terms & Conditions Privacy Policy About Us Contact Us
back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2018 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,

Photonics Media, Laurin Publishing
x We deliver – right to your inbox. Subscribe FREE to our newsletters.
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.