Optical waveguides – With optical coupler – Plural
Patent
1997-11-26
1999-08-10
Ullah, Akm E.
Optical waveguides
With optical coupler
Plural
359162, G02B 628
Patent
active
059371161
ABSTRACT:
A system for transmitting, over an optical transmission path using an optical fiber, wavelength-multiplex signals of a plurality of channels to which different wavelengths are assigned, the system comprising an optical transmission terminal station for transmitting the wavelength-multiplex signals to the optical transmission path, an optical reception terminal station for receiving the wavelength-multiplex signals from the optical transmission path, and at least one of ADD/Drop-Multiplexer nodes each including at least a demultiplexer unit for demultiplexing a plurality of channels to a channel in accordance with a given wavelength and a multiplexer unit for multiplexing a plurality of channels in accordance with a given wavelength, wherein optical pulses having pulse waveforms with an equal full-width at half-maximum are applied to the optical signals.
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Kabushiki Kaisha Toshiba
Ullah Akm E.
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