Patent · US Expired

Process for producing an injection laser and laser obtained by this process

US4341570A · kind A · utility

7Cited by
7References
4Claims
0Family size

Inventors

Key dates

Filing dateSep 3, 1980
Grant dateJul 27, 1982
Priority date
Expiry dateSep 3, 2000

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S438/965
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Process for producing an injection laser and laser obtained by this process. The active layer is weakly n doped. The same mesa is used for carrying out a proton implantation and a zinc diffusion. The active stripe is transversely limited by two homojunctions and two index jumps and the final structure is planar. In addition, there is an auto-alignment of the implanted and diffused zones. Application to the construction of lasers used in optical telecommunication systems.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.