The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 1979
Filed:
Jan. 15, 1976
Applicant:
Inventors:
Ivan Ladany, Stockton, NJ (US);
Michael Ettenberg, Freehold, NJ (US);
Harry F Lockwood, New York, NY (US);
Henry Kressel, Elizabeth, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
331 / ; 357 18 ; 357 52 ;
Abstract
A body of semiconductor material of an injection laser device, capable of operating at a power level up to a few milliwatts per micrometer of emitting width, has two opposed facet surfaces. On at least one of the facet surfaces is a protection layer of an insulating material having an optical thickness equal to approximately one-half the vacuum wavelength of the optical radiation emitted by the device.