Wavelength division-multiplexing optical transmission system

Details Wavelength division-multiplexing optical transmission system Wavelength division-multiplexing optical transmission system

2007-11-13

2007-11-13

Sedighian, M. R. (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S043000, C398S082000

Reexamination Certificate

active

10265392

ABSTRACT:
A wavelength division-multiplexing system is provided that uses wavelength grids in conformity with the ITU-T Recommendation G.692 and that is realizable at lower costs. In the system, the wavelengths of signal light beams transmitted from plural optical transmitters are respectively spaced apart in such a manner that multiplexed wavelengths are set at regular intervals within the band range of the optical amplifier5. The wavelength range of each laser beam covers at least two grids including neighboring grids. The wavelength demultiplexer3on the receiving side has the passband passing the wavelengths in a laser wavelength range corresponding to each channel.

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Takachio et al. (A study on a 10 Gb/s , 8 channel WDM transmission system employing unequal wavelength allocation, Technical research report of the institute of electronics, information and communication engineers, CS 96-43, pp. 19-24, Jun. 1996).

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