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:
May. 03, 2005
Filed:
Dec. 09, 2002
Danny (Dejin) Yu, Fremont, CA (US);
LI Chen, Fremont, CA (US);
William (Wei) Yang, Fremont, CA (US);
Charlie (Shu) Zhang, Fremont, CA (US);
Jie Yang, Fremont, CA (US);
Danny (Dejin) Yu, Fremont, CA (US);
Li Chen, Fremont, CA (US);
William (Wei) Yang, Fremont, CA (US);
Charlie (Shu) Zhang, Fremont, CA (US);
Jie Yang, Fremont, CA (US);
BaySpec, Inc., Fremont, CA (US);
Abstract
A device for expanding the wavelength band of an optical component is disclosed. The device has a beam splitter for splitting a wavelength division multiplexed beam into two beams at a desired separation angle. An optical grating separates the two beams into spectral components for each beam. The spectral components are focused on a receiving surface. The separation angle between the two beams expands the wavelength band of the WDM signal.