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Marvell has become the first company to provide an 800-gigabit coherent digital signal processor (DSP) for use in pluggable optical modules.
The 5nm CMOS Orion chip supports a symbol rate of over 130 gigabaud (GBd), more than double that of the coherent DSPs for the OIF's 400ZR standard and 400ZR+.
Meanwhile, a CFP2-DCO pluggable module using the Orion can transmit a 400-gigabit data payload over 2,000km using the quadrature phase-shift keying (QPSK) modulation scheme.
The Orion DSP announcement is timely, given how this year will be the first when coherent pluggables exceed embedded coherent module port shipments.
This is the year coherent pluggable modules exceed embedded coherent port shipments. Source: LightCounting
"We strongly believe that pluggable coherent modules will cover most network use cases, including carrier and cloud data centre interconnect," says Samuel Liu, senior director of coherent DSP marketing at Marvell.
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