Friday, March 17, 2017

NeoPhotonics Demos Coherent Transceiver for 400/600Gbps

At this week's Optical Fiber Communications (OFC) Conference and Exhibition in Los Angeles NeoPhotonics will demonstrate its pluggable Coherent CFP2-ACO module for 400G and up on a single wavelength over metro distances.

The NeoPhotonics' ClearLight CFP2-ACO Platform is capable of achieving single wavelength 200G, 400G and 600 Gbps transmission over Data center Interconnect through metro/regional distances.

The company said its ClearLight CFP2-ACO platform uses next generation optical components which are based on platforms that have been proven in volume production for 100G and 200G network applications. The platform uses NeoPhotonics’ high bandwidth Class 40 Coherent Receiver capable of 64Gbaud with 16-QAM to 64-QAM modulation.  This high bandwidth receiver maintains high sensitivity to simplify migration from 100G to 200G and 400G links.  The platform also uses NeoPhotonics’ industry leading high power, external cavity, ultra-narrow line width tunable laser with low power consumption. The ultra-narrow line widths enables higher order constellations with less processing requirements from the DSP.

The ClearLightTM  64 Gbaud CFP2-ACO demonstrates the ability to scale data capacity to 400G/600G on a single wavelength while maintaining performance and link budgets in DCI or metro/regional links.  The data capacity scaling optimizes the cost per bit and thus enables broad deployment of coherent transmission from short to long reaches.

"Our new ClearLightTM 64 Gbaud CFP2-ACO 400G/600G pluggable coherent transponder demonstrates a powerful new platform for NeoPhotonics which is capable of efficiently implementing 400G to 600G transmission networks," said Tim Jenks, Chairman and CEO of NeoPhotonics. "This exciting new platform is made possible by our Advanced Hybrid Photonic Integration technology utilizing our latest advances in high bandwidth receivers and ultra-narrow linewidth lasers in conjunction with higher order modulation, " continued Mr. Jenks.

Telia Carrier Tests TIP's Voyager Platform with Coriant

Telia Carrier, the wholesale carrier division of Sweden-based Telia, announced that the Telecom Infra Project (TIP) and Facebook have completed a trial of 100 and 200 Gbit/s transmission utilising Voyager equipment and technology developed by Coriant over its 1,089 km Stockholm to Hamburg route.

Telia Carrier stated that a key feature of the trial was the demonstration of the ability to effectively implement 16QAM signalling over long distances. Facebook has contributed Voyager, a whitebox transponder and routing solution that is being made available to the Telecom Infra Project (TIP) with the aim of enabling more open networks and a more connected world.

The company noted that the TIP aim of bringing a new approach to building and deploying telecom networks aligns with its own Carrier Declarations program, designed to help Telia Carrier expand and develop its network organically and be a leader in industry innovation.

For the trial, Telia Company, the parent company of Telia Carrier and a TIP member, supported Telia Carrier in conducting the test of the Voyager solution and has shared the results of the trial with other member companies. Carried out in early March, the trial demonstrated that decoupled DWDM transponder systems can offer a low cost, low power option, while also providing the necessary flexibility and accessibility to allow service providers to implement them within existing networks.

Following the trial, Telia Carrier is working with TIP, Facebook and Coriant towards the objective of disaggregating the hardware and software components of the network stack as part of the wider effort to make connectivity available to all.

Facebook unveiled Voyager at the TIP Summit last November and contributed the design to the TIP community. Recently, TIP cited forthcoming trial deployments of the solution by Telia, and noted that Orange was working with Facebook and the TIP Open Optical Pack Transport project group to evaluate the solution

When it introduced the platform in November, TIP stated that Equinix had tested Voyager with Lumentum's open line system over 140 km of production fibre, and that MTN had shared the results of a test of Voyager over its production network in South Africa. In addition, it was noted that Facebook, Acacia Communications, Broadcom, Celestica, Lumentum and Snaproute would deliver a disaggregated hardware and software optical networking platform, while ADVA was providing support for the solution.

Xilinx to Demo FPGAs in 400G Ethernet, FlexE

At this week's Optical Fiber Communications (OFC) Conference and Exhibition in Los Angeles Xilinx will debut a number of solutions for high speed data center interconnect (DCI) solutions.

Xilinx will participate in a 400GE multi-vendor network demo featuring the world's first standards-based 400GE MAC and PCS IP in a Xilinx Virtex UltraScale+™ VU9P FPGA. Showcasing the emerging 400GE standard interoperability between multiple vendors, the demo illustrates the Xilinx 400G solution connecting to a Finisar 400GE CFP8 module which in turn connects to a Spirent 400G test module in the Ethernet Alliance booth.

Xilinx will also showcase a complete FlexE 1.0 solution with bonding, sub-rating and channelization on its UltraScale+ FPGAs. This solution demonstrates how multiple clients can be transported using FlexE and highlights the ability of FlexE to carry larger data pipes and match them to transport links for optimal utilization of the link budget. This solution allows network operators to maximize optical performance and lower operating costs over existing infrastructure.

A third demo shows how LLDP packets can be snooped on transport line cards to allow a SDN controller to build a network topology for automation integral to data center networks. It also shows the use of IEEE compliant MACsec to encrypt and authenticate the link for security. As more and more critical applications and data migrate to the cloud, MACsec provides data encryption and authentication to preserve privacy. Such a solution is mandatory in front of a traditional DSP to provide a complete DCI solution.

Another demonstration showcases Xilinx's new 56G PAM-4 transceiver test chip in 16nm FinFET delivering optimized performance for backplane and LR applications.

VPIphotonics Upgrades its Photonic Simulation and Analysis Tools

VPIphotonics, a provider of photonic design automation solutions for components, systems and networks, has announced the release of VPIphotonics Design Suite Version 9.8, a simulation and analysis environment for optical components and transmission systems.

The latest release of VPIphotonics Design Suite supports four application-specific simulation tools - VPIcomponentMakerPhotonic Circuits, VPIcomponentMakerFiber Optics, VPItransmissionMaker Optical Systems and VPIlabExpert, and offers enhancements to the user interface and tools operation to help streamline the design and analysis processes. In addition, improved simulation capabilities enhance support for research and product development for new technologies, components and systems.

Target applications for VPIphotonics Design Suite span integrated photonics and optoelectronics, fibre-based lasers and amplifiers and low-cost high-speed direct detection and high-capacity flexible digital coherent systems.

Key new capabilities featured in version 9.8 include:

1. Data-sheet model for directly modulated lasers driven by multilevel data signals as used in PAM applications.

2. Added functionality for synchronising received and reference sequences for DSP and performance estimation.

3. Enhanced multimode fibre module to support coupling between different mode groups.

4. Improved doped multimode fibre solver to support cross-sections spectra of 2-level rare-earth dopant ions, besides Erbium ions, plus analysis tool for multimode amplifiers to characterise gain, noise, mode-resolved signal and noise powers, OSNRs and BERs.

5. Bidirectional electro-optic amplitude and phase modulator allowing control of the electro-absorption and -refraction effects in waveguides.

6. Enhanced modelling of curved waveguides with arbitrary shapes and a new library of waveguides with frequently used curvature shapes.

7. M x N arrayed waveguide grating model using the scattering matrix approach based on datasheet or measured data.

VPIphotonics' noted that Design Suite also incorporates over 850 demonstrations to show the functionality and application range, with new demonstrations for applications such as coded modulation, Stokes vector modulation, PAM, PON transceiver characterisation, 5G wireless backhaul over fibre, DBR fibre lasers and electrooptic components.

GigPeak to showcase 200G PAM4 VCSEL/DML

GigPeak, a supplier of semiconductor ICs and software solutions for high-speed connectivity and video compression over the network and in the cloud that is in the process of being acquired by Integrated Device Technology (IDT), announced that it will showcase a range of products for data centre and telecom markets at OFC 2017.

During OFC, the company will display technology including 200 Gbit/s PAM4 VCSEL and DML drivers for 200/400 Gbit/s applications, 100 Gbit/s LR TOSA and ROSA reference designs in partnership with Shijia Photons Technology, and its 64 Gbaud quad-channel linear optical modulator driver in a 14 x 9.1 mm SMT package for 400/600 Gbit/s coherent applications.

Datacom demonstrations conducted by GigPeak will include its HXT42400 in a TOSA reference design, providing a 4-channel 100 Gbit/s LR NRZ DML laser driver in TOSA, and HXR42400 in ROSA reference design, offering a 4-channel 100 Gbit/s LR NRZ TIA in ROSA, that enable customers to build TOSA/ROSA devices based on its reference design. It will also demonstrate its HXC42400 low power 4-channel 100 Gbit/s LR NRZ CDR integrated with the 100 Gbit/s LR NRZ TOSA/ROSA reference designs.

GigPeak will also show telecom demonstrations including the GX66471 4 channel 64 Gbaud driver targeting linecard and pluggable module vendors developing 400/600 Gbit/s products.

GigPeak noted that the TOSA/ROSA demonstration will involve the combined devices delivering 4 x 25.78 Gbit/s over a distance of more than 10 km of single mode fibre. The optical sub-assemblies utilise Shijia Photons Technology's TOSA/ROSA design and packaging capabilities, designed to simplify evaluation and expand availability of the designs.

The company noted that it is sampling in die form its DML driver and TIA, and expects to begin sampling 56 Gbit/s PAM4 DML drivers and TIAs in die form, as well as Shijia-manufactured TOSAs and ROSAs, in the second half of 2017.