Patent · US Expired

Double heterostructure laser for direct coupling to an optical fiber

US4163953A · kind A · utility

41Cited by
4References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 7, 1977
Grant dateAug 7, 1979
Priority date—
Expiry dateJul 7, 1997

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01S5/005
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A double heterostructure laser has a first confining layer on the substrate, an active layer on the first confining layer and a second confining layer on the active layer. A groove is etched through the second confining layer and active layer to form a reflecting surface at approximately 45.degree. to the plane of the active layer. The resonant cavity is formed between a cleaned end surface and a surface at the substrate. A hole through the substrate to the first confining layer is aligned with the reflecting surface for emission therethrough.

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