The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2003
Filed:
May. 08, 2000
James Nelson Baillargeon, Sugar Land, TX (US);
Federico Capasso, Westfield, NJ (US);
Alfred Yi Cho, Summit, NJ (US);
Claire F. Gmachl, New Providence, NJ (US);
Albert Lee Hutchinson, Piscataway, NJ (US);
Roberto Paiella, Short Hills, NJ (US);
Deborah Lee Sivco, Warren, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A self-mode-locking (SML) mid-infrared (5 and 8 &mgr;m) quantum cascade laser is formed that comprises both a relatively thin dielectric insulating layer (i.e., less than one-half micron in thickness) overlaid with an optically highly lossy (i.e., absorbing) layer, with a relatively long (approximately 3.5 mm) optical waveguide. Evidence of mode-locking is obtained from the measured optical spectra and corresponding interferograms, as well as from the rf spectra of the photocurrent detected with a fast quantum-well infrared photodetector. An estimate for the pulse width of approximately 3 psec is inferred from these data.