Title:
SUPER LUMINESCENT DIODE
Document Type and Number:
Japanese Patent JPH02249283
Kind Code:
A
Abstract:
PURPOSE:To suppress laser oscillation and to obtain a super luminescent diode with high output by laminating a current-blocking layer with the opposite conductivity type to that of a substrate on the substrate, by providing a groove reaching a stripe-shaped substrate of a length which does not reach the other edge surface toward the inside from one edge surface, and by forming a clad layer and active layer of the same conductivity type as the substrate. CONSTITUTION:An active layer 4 and a clad layer 3 which is of the same conductive type as a substrate as well as a clad layer 5 which is of the opposite conductivity type as the substrate 1, both of them sandwiching the active layer 4, are formed on a conductivity type p-GaAs substrate 1 and a current blocking layer 2 with the opposite conductivity type as the substrate controlling the current injection region is formed among these layers and the substrate 1. Also, a contact layer 6 is formed at the uppermost layer and sectional enzyme on the surface vertical to a stripe differs between the region where grooves are provided in a stripe shape from one edge surface toward the inside and the area closer to the edge surface of light-reading surface side which is the other edge surface.
Inventors:
TATSUOKA KAZUKI
KUME MASAHIRO
HAMADA TAKESHI
SHIMIZU YUICHI
KUME MASAHIRO
HAMADA TAKESHI
SHIMIZU YUICHI
Application Number:
JP6998589A
Publication Date:
October 05, 1990
Filing Date:
March 22, 1989
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01L33/14; H01L33/30; (IPC1-7): H01L33/00
Attorney, Agent or Firm:
Koji Hoshino