News: Optoelectronics
6 January 2020
NeoPhotonics ships initial units of extended-tuning-range 400G-capable ClearLight CFP2-DCO coherent transceivers for end-customer trials
NeoPhotonics Corp of San Jose, CA, USA (a vertically integrated designer and manufacturer of hybrid photonic integrated optoelectronic modules and subsystems for high-speed communications) has shipped its new 400G-capable ClearLight CFP2-DCO transceiver for end-customer trials.
This is said to be the first transceiver module able to deliver as much as 32 Terabits of capacity per fiber – significantly higher than existing 200G CFP2-DCO capacity or the emerging 400G CFP2-DCO capacity– by using internal optics that can support 80 channels of 64Gbaud data at 75GHz wavelength channel spacing combined with the latest generation of 7nm node digital signal processing (DSP) technology for superior optical signal-to-noise ratio (OSNR) and power consumption. The new product effectively increases the capacity of an optical fiber by as much as 50% over standard systems at comparable distances.
The ClearLight CFP2-DCO is the first in a series of coherent module solutions based on NeoPhotonics’ patented photonic integrated circuit (PIC) platform, which will enable cloud operators and carriers to create optical interconnects with much greater capacity and density with reduced complexity in the high-capacity dense wavelength division multiplex (DWDM) optical networks used in hyper-scale cloud and telecom infrastructure applications.
NeoPhotonics’ ClearLight CFP2-DCO module incorporates several coherent solutions from NeoPhotonics in a pluggable module, including its new extended-tuning-range ultra-narrow-linewidth tunable C++ LASER.Micro-ITLA (integrated tunable laser assembly). It also features its high-bandwidth 64Gbaud C++ ICR Receiver and C++ CDM Modulator. This module supports tuning across the full Super C-band and is said to provide up to 50% more spectrum and resulting capacity than standard modules.
The ClearLight CFP2-DCO module tunes to 75GHz-spaced wavelength channels when operating at 64Gbaud and 16 QAM to support 400G transmission in 400ZR and 400ZR+ modes for cloud data-center interconnect (DCI) and metro telecom applications. NeoPhotonics also provides arrayed waveguide gratings for multiplexing and de-multiplexing with 75GHz channel spacings and filter responses optimized for 64Gbaud coherent signals, including for Super C-band use.
For long-haul and regional applications, the CFP2-DCO module utilizes 64Gbaud and QPSK modulation to deliver 200G-per-wavelength transmission. This is made possible by an OSNR of less than 14dB and enhanced performance to enable substantially longer reaches than standard 32Gbaud, 16 QAM systems.
If the application requires that a 50GHz channel wavelength spacing be used, this CFP2-DCO module can tune over 120 channels and operate at 200G with an OSNR of less than 16dB (again, substantially better than existing standard CFP2-DCO transceivers).
The module is compliant with the OIF-CFP2-DCO-01.0-Implementation Agreement and has a superior watt per gigabit performance. The module will also be available in standard C-band tuning range for applications that do not require the significantly higher capacity per fiber that this module enables.
“This new module joins our ClearLight CFP-DCO transceiver line, which has been shipping since 2017, and is our first in a series of DCO modules for 400G transmission and providing the benefits of extended C++ tuning range,” says chairman & CEO Tim Jenks. “We are pleased to announce these initial shipments of our ClearLight CFP2-DCO coherent transceiver modules to customers,” he adds. “This new series will utilize our leading 64Gbaud silicon photonics or indium phosphide PICs, together with our new Tunable C++ LASER Micro-ITLA. This will increase the capacity and distance performance in a network well above that available in systems today.”
OIF completes implementation agreement interoperability specs for CFP2-DCO and HB-CDM modules
