wavelength-division multiplexing


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wavelength-division multiplexing

[¦wāv‚leŋth də¦vizh·ən ′məl·tə‚pleks·iŋ]
(communications)
The sharing of the total available pass-band of a transmission medium in the optical portion of the electromagnetic spectrum by assigning individual information streams to signals of different wavelengths. Abbreviated WDM.
References in periodicals archive ?
At last week s Integrated Photonics Research, Silicon and Nanophotonics Conference (IPR, San Diego, July 13-16, 2014), imec has demonstrated improved performance of various key building blocks for high-density low-power wavelength-division multiplexing (WDM) optical interconnects in silicon.
Imec has demonstrated, at wafer-scale, a ring-based Wavelength-Division Multiplexing filter with an improved thermo-optic tuning efficiency better than 1nm/mW per channel, a thermally tunable 28Gb/s ring modulator with an efficiency of 260pm/mW and a high-speed germanium photodetector achieving an average responsitivity of 0.
However, the emergence of wavelength-division multiplexing now requires that chromatic dispersion itself be measured over the [approximately equal to]80 nm optical bandwidth occupied by multiple wavelength channels.

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