The Dawn of the Terabit Age - Infinera
The Dawn of the Terabit Age - Infinera
The Dawn of the Terabit Age - Infinera
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DWDM Coherent Detection<br />
Spatially separate <strong>the</strong><br />
channels using a<br />
wavelength demux<br />
Spacing on <strong>the</strong> fiber<br />
needed between waves:<br />
“Guard Bands”<br />
LO<br />
PD<br />
ADC<br />
DSP<br />
wavelength<br />
demux<br />
Use a local oscillator to<br />
choose <strong>the</strong> “color” we<br />
want to “detect” …<br />
matching <strong>the</strong> filter<br />
connected to
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