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:
Nov. 02, 1999
Filed:
Mar. 27, 1997
Applicant:
Inventors:
Federico Capasso, Westfield, NJ (US);
Alfred Yi Cho, Summit, NJ (US);
Jerome Faist, Scotch Plains, NJ (US);
Albert Lee Hutchinson, Piscataway, NJ (US);
Carlo Sirtori, Paris, FR;
Deborah Lee Sivco, Warren, NJ (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ; H01S / ; H01L / ;
U.S. Cl.
CPC ...
372 45 ; 372 20 ; 257 15 ;
Abstract
In a novel tunable semiconductor laser, the lasing transition is a non-resonant tunneling transition, with the frequency of the emitted photon depending on the electrical bias across the multi-period active region of the laser. The laser can be designed to emit in the mid-IR, and can advantageously be used for, e.g., trace gas sensing.