Double heterostructure laser

Patent · Tue Feb 04 04:00:00 EST 1986

OSTI ID:6063461

Connolly, J C; Botez, D

This patent describes a semiconductor laser which consists of: 1.) a body of semiconductor material having a pair of spaced, parallel and facets which are reflective of light at the laser wavelength with at least one of the facets being partially transparent and including a substrate with a pair of opposed major surfaces with substantially parallel channels with mesas separating the channels. The mesas have top surfaces below the first major surface of the substrate, and extend between the facets forming a channelled region in the substrate surface; 2.) a first cladding layer overlying the surfaces of the substrate, the channels and the mesas and having a layer surface over the channelled region which is not coplanar with the layer surface over the remainder of the substrate. The layer surface has a central portion over the channelled region which is substantially planar; 3.) a cavity region overlying the first cladding layer; 4.) a second cladding layer overlying the active layer; 5.) a first electrical contact overlying the second cladding layer over the central portion of the channelled region; and 6.) a substrate electrical contact overlying the second major surface of the substrate.

• Assignee: RCA Corp., Princeton, NJ
• Patent Number(s): US 4569054
• OSTI ID: 6063461
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
DESIGN
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
EQUIPMENT
JUNCTIONS
LASERS
LAYERS
MATERIALS
OPACITY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
REFLECTIVITY
SEMICONDUCTOR DEVICES
SEMICONDUCTOR JUNCTIONS
SEMICONDUCTOR LASERS
SEMICONDUCTOR MATERIALS
SUBSTRATES
SURFACE PROPERTIES
SURFACES
WAVELENGTHS