Patent · US Expired

Method of making a loss stabilized buried heterostructure laser

US4536940A · kind A · utility

4Cited by
5References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 4, 1984
Grant dateAug 27, 1985
Priority date—
Expiry dateJun 4, 2004

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S438/978
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A buried heterostructure laser which obtains lowest mode operation by larger differences in loss between the lowest and higher order modes is described. The loss is achieved by interface scattering between the mesa and the burying layer. The scattering losses increases with refractive index discontinuity, interface roughness and decreasing mesa width. Stabilization results because scattering losses increase rapidly with the order of the transverse modes.

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