Patent ID: 7738167
Filing Date: 2010-06-15
Classification: B82Y,G02B,H01S,H04J

Abstract:
1. A passive optical network (PON) using a reflective semiconductor optical amplifier (RSOA), the PON comprising: a central office comprising a plurality of optic sources transmitting a downstream signal to at least one optical network terminal (ONT) and a plurality of first receivers receiving an upstream signal sent from the at least one ONT; the at least one optical network terminal (ONT) comprising a second receiver receiving the downstream signal transmitted from the central office and an RSOA which receives the downstream signal transmitted from the central office, wherein the RSOA remodulates the downstream signal transmitted from the central office into the upstream signal for transmitting to the central office, and transmits the remodulated upstream signal to the central office in loopback mode; and a remote node interfacing the central office with the ONT, wherein the upstream signal transmitted to the central office from the ONT, which has been remodulated by the RSOA after receiving the downstream signal sent from the central office to the ONT and the downstream signal transmitted from the central office to the ONT prior to being remodulated are transmitted between the remote node and the ONT via a single optical fiber.