Passive optical network employing upconverted 16-cap signals

Details Passive optical network employing upconverted 16-cap signals Passive optical network employing upconverted 16-cap signals

1996-11-20

1998-10-13

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359125, 359191, H04B 1000

Patent

active

058221026

ABSTRACT:
At a central facility, information for a user is converted to a carrierless AM/PM (CAP) signal, upconverted, combined with other upconverted signals destined for other users and transmitted via an analog optical fiber optic line to an optical network unit (ONU) which downconverts the CAP signals without changing their modulation format and places them on the appropriate unshielded twisted line pairs for respective users. If the user is able to receive the optical fiber directly, the ONU can be eliminated. Information may also be transmitted from the users to the central facility using the same transmission lines. Additionally, voiceband channels may be carried on the same transmission lines.

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