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US 4,734,380 AGranted
Multicavity optical device held together by metallic film
AssigneeAmerican Telephone and Telegraph Company, AT&T Bell Laboratories
InventorWon-Tien Tsang
Life of this patent
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Abstract
Semiconductor lasers having cleaved optically coupled cavities operating electrically isolated produce output of a single longitudinal mode. Wavelength tuning of the single longitudinal mode is possible.
Claims1
A method for forming a plurality of semiconductor sections electrically isolated from each other but optically coupled with each other comprising the steps of depositing a plastically deformable metallic film on a portion of a surface of a semiconductor body, said film being less than 10 .mu.m thick;
- scribing said semiconductor body on a surface opposite said film;
- and bending said semiconductor body thereby cleaving said body along crystallographic planes to form a plurality of semiconductor sections held together by said film.
Dependencies are inferred from the claim text.