News Highlights:

• NTT Electronics leads the industry by adding new DSP to its product portfolio, plans product release in 2H-2023.
• New 140 Gbaud digital signal processing LSI (DSP) achieves world's largest capacity of 1.2 Tbit/s per wavelength

SAN DIEGO--(BUSINESS WIRE)--NTT Electronics, a leading supplier of coherent Digital Signal Processor (DSP) solutions to system and module manufacturers worldwide, today announced start of 140 Gbaud high-performance coherent DSP (ExaSPEED GAIA) shipment to customers. ExaSPEED GAIA achieves world's largest transmission capacity of 1.2 Tbit/s per wavelength by utilizing a programmable baud rate of up to 140 Gbaud powered by a flexible coded modulation scheme and advanced 5nm FinFET CMOS process.

�We are excited to add the ExaSPEED GAIA DSP to our product portfolio which cuts the power consumption per bit to half while doubling the baud rate over earlier product offering,� said Satoshi Shigematsu, NTT Electronics General Manager of Broadband System & Device Business Unit. �We believe this high-performance DSP will help our customers offer highly differentiated optical transmission equipment and systems�, he added.

The programmable baud rate can support very fine granularity that enables ExaSPEED GAIA to adapt to a range of links while maximizing spectral efficiency. These include short-reach data center interconnects (DCI), terrestrial metro links with cascaded ROADMs, and ultra-long-haul sub-sea links. Customers can use a wide range of 400G interfaces in 1.2T (3x400GbE) for DCI, 800G (2x400GbE) for metro and 400G (1x400GbE) for sub-sea applications. This capability helps simplify interfaces and optimize Capital/Operational expenditure. Moreover, ExaSPEED GAIA also offers fine capacity tuning in 50G increments to respond to various customer requirements.

Flexible coded modulation is the newly-developed coding scheme to efficiently implement advanced constellation shaping, forward error correction (FEC), and high-order modulation format with high performance and low power. This enables ExaSPEED GAIA to support thousands of operational modes that cover a multitude of customer's transmission links with high energy efficiency. To enhance the performance, ExaSPEED GAIA employs a number of novel compensation algorithms including nonlinear distortion compensation, adaptive fast state of polarization (SOP) tracking, fast device and transmission characteristics estimation, and ultra-long CD compensation for high-baud rate systems*. The performance of ExaSPEED GAIA can be further optimized by combining it with NTT Electronics� industry-leading high speed coherent driver module (UHB-CDM).

"We are very impressed with the performance of NTT Electronics� latest ExaSPEED GAIA DSP," commented Hideki Matsui, Vice Head of Photonics System Business Unit, Fujitsu Limited. �This revolutionary DSP makes our products more competitive in the market and enables us to offer innovative solutions. It opens up a new 'terabit era,' which will be a game changer in our industry,� he added.

�This state-of-the-art DSP, we believe would be key to realize the future information-centric society,� said Akio Goto, General Manager of Photonics Device Development Division, NEC Corporation. He also said, �We are excited to introduce ExaSPEED GAIA in conjunction with CDM in our DWDM products to build diverse, high-throughput and green optical networks.�

* https://group.ntt/en/newsrelease/2022/09/05/220905a.html

Contacts

NTT Electronics Contact :
Atul Srivastava, CEO & CTO

NTT Electronics America, Inc.

Tel : +1-201-556-1770

Email : [email protected]