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

  • Photodetector Developed with 1.5-µm Sensitivity

Photonics Spectra
May 2002
Silicon-based photodetectors may benefit high-speed optical communications technologies because of their potentially simple integration. But developing a cost-effective, efficient detector that obtains a photoresponse in the 1.3- to 1.55-µm wavelength range necessary for communications applications has been a challenge.

Using germanium quantum dots embedded in undoped silicon, researchers from the University of California in Los Angeles have developed a PIN photodetector that they believe may provide a solution. In the Feb. 18 issue of Applied Physics Letters, they reported that the detectors show a photoresponse between 1.3 and 1.52 µm with an external efficiency of 8 percent at 1.4 µm.

Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!