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:
Jan. 17, 1989
Filed:
Nov. 06, 1986
Applicant:
Inventors:
Stefano Bottacchi, Milan, IT;
Mauro Oselladore, Trieste, IT;
Assignee:
GTE Telecomunicazioni, S.p.A., Cassina de Pecchi, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ; H01S / ;
U.S. Cl.
CPC ...
372 38 ; 372 26 ; 372 29 ; 372 31 ; 372 33 ; 307311 ;
Abstract
The invention relates to a driver for a semiconductor laser which makes it possible to obtain a high switching rate as well as bias and modulation current control. These objects are achieved with an asymmetric mirror current generator and current variation means using one transistor only.