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:
Oct. 04, 2005
Filed:
Mar. 15, 2002
Applicants:
Michael C. Parker, Colchester, GB;
Stuart D. Walker, Colchester, GB;
Inventors:
Michael C. Parker, Colchester, GB;
Stuart D. Walker, Colchester, GB;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B006/26 ;
U.S. Cl.
CPC ...
Abstract
A chromatic-dispersion compensator comprises a plurality of dispersive elements (Q in number. Q≧2) each exhibiting a dispersion characteristic D (λ) that varies substantially as a polynominal function of wavelength, the polynomial function being of an order (P−2) greater than 0, the dispersion characteristics being displaced in wavelength relative to each other such that the compensator has a net Pth-order dispersion characteristic Dthat is non-zero and does not vary substantially with wavelength an operating bandwidth.