Passive optical network with analog distribution

US6606430B2 · kind B2 · utility

Assignee

• Optical Zonu Corporation · US

Inventors

• Meir Bartur · Los Angeles, US
• Farzad Ghadooshahy · Los Angeles, US
• Sean Zargari · Los Angeles, US
• Jim Stephenson · Galway, IE
• Alfred Makonnen · Santa Monica, US
• Kerry Quinn · Palatine, US

Key dates

• Filing date: Sep 4, 2001
• Grant date: Aug 12, 2003
• Expiry date: Dec 10, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/4246
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A passive optical network which is capable of full duplex digital transmission at high data rates and which also provides analog broadcast transmission is disclosed. A central station provides analog broadcast transmission at a first wavelength of light and full duplex digital transmission using second and third wavelengths of light. Optical networking units, electrically or wirelessly coupled to end users in the network, are optically coupled to the central station via passive optical network nodes. The optical networking units resolve the two broadcast streams from the central station employing compact optics configured on a transparent substrate and provide burst mode digital transmission up stream to the central station on a time division multiple access basis.