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:
Dec. 19, 2017
Filed:
Oct. 02, 2015
Go!foton Holdings, Inc., Somerset, NJ (US);
Haiguang Lu, Los Altos, CA (US);
Kenichiro Takeuchi, North Brunswick, NJ (US);
Rhaniel Peralta, Calamba, PH;
Glenn Lachica, Laguna, PH;
Marlene Gizelle M. Balinos, Batangas, PH;
Anita L. Lumantes, Laguna, PH;
Erika Mae A. Entico, Laguna, PH;
Go!Foton Holdings, Inc., Somerset, NJ (US);
Abstract
An optical signal routing device may include a first lens, second lens and a wavelength division multiplexer ('WDM') filter positioned between the first and second lenses. The WDM filter may reflect a signal of a first wavelength with a first attenuation and pass the first wavelength signal attenuated by at most a second attenuation to the second lens, the first attenuation exceeding the second attenuation by a first predetermined amount. The WDM filter may reflect a signal of a second wavelength different than the first wavelength with at most a third attenuation, the first attenuation exceeding the third attenuation by at least a second predetermined amount. The device may further include a reflector positioned to reflect the first wavelength signal reflected by the WDM filter toward the WDM filter with at least a fourth attenuation, the fourth attenuation exceeding the second attenuation by at least a third predetermined amount.