Verizon Media Successfully Completes 400ZR Trial Using Inphi COLORZ II DWDM QSFP-DD Optics

Posted Sep 25, 2020 by Inphi Corporation

Inphi Corporation, a leader in high-speed data movement interconnects, and Verizon Media have announced the successful validation of a seamless upgrade from 100GbE QSFP28 optics, using Inphi’s COLORZ, to 400GbE QSFP-DD over the same production Open Line System, using Inphi’s COLORZ II. This ground-breaking demonstration consisted of adding a 400ZR from an Arista 400G switch into a 100GHz DWDM channel without affecting any of the existing 100GbE waves.

To build a better content delivery network, which brings rich high-quality media to millions of users, Verizon Media needs to connect super PoPs with low latency and high capacity DWDM interconnects. The company is advancing the disaggregation of optics, switching, and optical line systems in preparation for an enormous surge in data driven by cloud, HD video and 5G applications. Both generations of Inphi’s COLORZ optics enable data center connectivity directly from any switch or router port, allowing for the same density as client optics, while accelerating the paradigm shift to IPoDWDM. Leveraging existing 100GHz optical line systems, COLORZ II increases fiber capacity from 4Tb/s to 16Tb/s while further lowering power and cost per bit.

Both Inphi’s COLORZ optical platforms use a single Silicon Photonics Integrated Circuits technology for all transmit and received functions. With a strong market adoption of over 100,000 units COLORZ deployed, COLORZ II will further benefit from a strong industry support with a multi-vendor ecosystem and a well-accepted interoperable 400ZR standard.

COLORZ is the industry’s first Silicon Photonics 100G PAM4 platform solution for 80km DWDM Data Center Interconnects (DCIs) in QSFP28 form factor. Utilizing advanced Pulse Amplitude Modulation (PAM4) signaling, COLORZ delivers up to 4Tb/s of bandwidth over a single fiber and allows multiple data centers located up to 80km of each other to be connected and act like a single data center.

COLORZ II is the industry's first 400ZR QSFP-DD pluggable coherent transceiver for cloud DCIs to major cloud operators and OEMs. COLORZ II enables large cloud operators to connect metro data centers at a fraction of the cost of traditional coherent transport systems and allows switch and router companies to offer the same density for both coherent DWDM and client optics in the same chassis. This eliminates a layer of network connectivity that was previously required and supports high capacity DWDM connectivity directly from data center switches.