Infinera Nyquist Subcarriers | World-record Spectral Efficiency
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Nyquist Subcarriers

Delivering World-record Optical Performance Pioneered by Infinera​

Nyquist subcarrier technology divides a single high-baud-rate wavelength (carrier) into multiple low-baud-rate subcarriers. In Infinera’s ICE6, our second-generation subcarriers are enhanced with per-subcarrier probabilistic constellation shaping (PCS) and dynamic bandwidth allocation. The results are even higher capacity-reach for high-baud-rate transmission on a single fiber.

Highlights

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Pioneered by Infinera

Infinera was the first company to implement subcarrier transmission in ICE4, and these capabilities have been further enhanced in ICE6.

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Mitigate high baud rate penalties

ICE6 operates up to 100 GBd and beyond, and using multiple subcarriers allows us to mitigate the penalties caused by noise-induced chromatic dispersion compensation.

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Per-subcarrier PCS

Infinera’s PCS is implemented on a per-subcarrier basis to allow highly granular transport of data payloads while minimizing optical impairment penalties.

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World-record trans-Atlantic performance

While subcarriers excel in terrestrial networks, ICE6 has also demonstrated world-record trans-Atlantic performance with up to 28 Tb/s fiber capacity and 650 Gb/s wavelength data rates.

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