Optical terminal apparatus

Details Optical terminal apparatus Optical terminal apparatus

2005-01-28

2008-03-25

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S341200, C398S092000

Reexamination Certificate

active

07349150

ABSTRACT:
An optical terminal apparatus includes a plurality of signal light units that transmits and receives a signal light having a predetermined wavelength; at least one pumping light unit that emits a pumping light having a predetermined wavelength to perform Raman amplification for the signal light transmitted; and an optical multiplexer/demultiplexer that multiplexes/demultiplexes the signal light and the pumping light, the optical multiplexer/demultiplexer having one end connected to an optical transmission path and other end connected to the signal light units and the pumping light unit.

REFERENCES:
patent: 5742416 (1998-04-01), Mizrahi
patent: 6657776 (2003-12-01), Gehlot
patent: 6970650 (2005-11-01), Kajiya et al.
patent: 2003/0081290 (2003-05-01), Kinjo et al.
patent: 2003-134057 (2003-05-01), None
Reference AG (Japanese Patent Application 2003-134057 dated May 9, 2003) corresponds to Reference AA (United States Patent Application Publication No. 2003/81290 dated May 2, 2003).

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