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:
Mar. 22, 1994
Filed:
Mar. 29, 1993
Applicant:
Inventors:
Jing-Jong Pan, Milpitas, CA (US);
Frank Y Liang, San Jose, CA (US);
Xing-Liang Jing, San Jose, CA (US);
Ming Shih, Milpitas, CA (US);
Assignee:
E-Tek Dynamics, Inc., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 20 ; 372102 ; 372107 ; 372 92 ;
Abstract
An assembly for tuning a laser by a stepper motor alone is provided. A diffraction grating forming a resonance cavity with an end of the laser is rotated by the stepper motor. A follower arm affixed to the rotatable grating, engages a cam, which is driven by the stepper motor. The cam and follower arm are designed so that there is a linear relationship between the rotation of the stepper motor and that of the grating.