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:
Feb. 03, 1998
Filed:
Jun. 22, 1995
Yves Nissim, Paris, FR;
Marcel Bensoussan, Boulogne, FR;
Jean-Louis Oudar, Chatenay Malabry, FR;
Elchuri Rao, Issy Les Moulineaux, FR;
France Telecom, , FR;
Abstract
This invention relates to a process for producing a matrix of 'all optical' vertically-structured quantum well components. This process consists in the encapsulation of a half-structure constituted by a lower mirror (2) and an active zone (3) partially covered by a self-alignment mask (4) with a negative dielectric layer (7) whose thickness is given by the Bragg condition at the working wavelength. The encapsulated half-structure is thermally treated to induce an alloy interdiffusion (9) in the non-covered parts of the active zone, and covered with one or several negative and positive layers (10,11) so as to complete the upper Bragg mirror.