Optical waveguides – With optical coupler – Plural
Reexamination Certificate
2005-01-18
2005-01-18
Lee, Diane I. (Department: 2876)
Optical waveguides
With optical coupler
Plural
C385S037000, C398S079000
Reexamination Certificate
active
06845188
ABSTRACT:
The invention adds a function of Wavelength-Division-Multiplexing (WDM) to conventional transmission units to enlarge the transmission capacity. The DC WDM device of the invention includes a first WDM coupler module for inputting a first WDM optical signal subjected to transmission and a first optical signal of a fixed wavelength to wavelength-division-multiplex the signals, and a second WDM coupler module for demultiplexing a transmitted WDM optical signal to divide the same into a second optical signal of the fixed wavelength and a second WDM optical signal of the remaining wavelengths. The WDM system of the invention includes a pair of DC WDM sub-systems connected to each other via optical transmission/receiving channels for transmitting/receiving WDM optical signals, where one of the DC WDM sub-systems includes a plurality of transmission units for transmission/receiving optical signals of fixed wavelengths into and from corresponding transmission units of the other DC WDM sub-system, a plurality of DC WDM devices connected to one another into the shape of a daisy chain while coupled to said transmission units in one-to-one relation, and a fiber amplifier connected between said optical transmission/receiving channels and one of said DC WDM devices subjected to connection to said channels.
REFERENCES:
patent: 5555118 (1996-09-01), Huber
patent: 6181467 (2001-01-01), Jung et al.
patent: 6233074 (2001-05-01), Lahat et al.
patent: 6317239 (2001-11-01), Burbidge et al.
patent: 6344925 (2002-02-01), Grubb et al.
patent: 6381384 (2002-04-01), Solheim et al.
patent: 6404522 (2002-06-01), Handelman
patent: 20010046348 (2001-11-01), Sarkimukka et al.
patent: 810699 (1997-12-01), None
patent: 964275 (1999-12-01), None
patent: 07281219 (1995-10-01), None
patent: 09015422 (1997-01-01), None
patent: 2000012937 (2000-01-01), None
patent: WO 0211336 (2002-02-01), None
Bushnell , Esq. Robert E.
Lee Diane I.
Sam-Sung Electronics Co., Ltd.
LandOfFree
DC WDM device and DC WDM system and transmission network... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with DC WDM device and DC WDM system and transmission network..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC WDM device and DC WDM system and transmission network... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3430229