& cplSiteName &

ECOC: Satisfying the Need for Speed

Brian Santo

DÜSSELDORF -- ECOC 2016 -- Merry Pranksters and Top Gun cadets are dilettantes compared to network operators when it comes to a need for speed, and nowhere do operators need speed more than in data centers and between data centers. The opto-electronics industry is meeting at ECOC in Düsseldorf, Germany, this week to unveil and examine new products and technologies to try to sate the appetite for networking at 100 Gbit/s, 200 Gbit/s, 500 Gbit/s and even "Furthur."

So what's on show? Here's a look at some of the new devices and technologies being unveiled this week, and some of the achievements indicating that accelerating networks to hundreds of gigabits a second is a realistic goal in the foreseeable future.

  • Applied Micro Circuits Corp. (Nasdaq: AMCC), Macom and BrPhotonics say they have a functional, combined solution for transmitting a single wavelength at 100 Gbit/s (56 gigabaud), using PAM-4.

    With internal traffic within data centers (so-called east-west traffic) growing at eye-popping rates, there are any number of bottlenecks, including physical space on server faceplates for connectors. Accelerating the amount of traffic through any given port relieves the problem.

    The three have combined AppliedMicro's 16nm FinFET 100Gbit/s PAM4 DSP, BrPhotonics' TFPS modulator, and Macoms's transimpedance amplifier (TIA), and have successfully demonstrated the transmission of 100Gbit/s over a single wavelength.

    The companies claim they are the first to enable 400Gbit/s connectivity in a QSFP family of transceivers. They expect commercial deployment will begin in 2017.

  • Many data centers are either in the process of upgrading from 10G interconnect, or are planning to soon. Upgrade options include going to 40G, but that progression (4 X 10G) makes a subsequent jump to 100G fitful -- the multiples are just wrong. Another option is a switch to 25G, with four channels combining cleanly to make 100G (taking a half step to 50G is also possible). Going straight from 10G to 100G is also possible.

    There, the standard upgrade path is to switch to multimode ribbon fiber and use 100G SR4 over four parallel data streams, according to Lumentum and Finisar.

    But it's possible to go to 100G in several other ways. It's not clear yet if there is a best way, or if different approaches will be useful depending on what a data center already has installed.

    The team of Mellanox Technologies Ltd. (Nasdaq: MLNX) and Oclaro Inc. (Nasdaq: OCLR) have combined the latter's 1310nm LR (long reach) SFP28 transceiver line with the former's 1550nm PSM4 transceivers.

    The point of connecting 100Gbit/s PSM4 silicon photonics to 25Gbit/s LR transceivers for servers and storage is to enable data center operators to use single mode fiber to interface with 100Gbit/s switches and routers. To put a finer point on it, it provides data center operators a path to scale 25Gbit/s Ethernet networks for east-west data center traffic with links of 100 meters to 2 kilometers.

    Mellanox and Oclaro contend that having a single laser and no multiplexing ends up being more cost efficient than approaches that rely on multiplexing multiple wavelengths produced by multiple lasers.

  • Lumentum Holdings Inc. and Finisar Corp. (Nasdaq: FNSR) are just as confident that multiplexing multiple wavelength can be done cost-efficiently -- if you adopt shortwave wavelength division multiplexing. SWDM is still not widely used in short-reach data communications, however, including within data centers.

    The two companies are demonstrating the compatibility of their 100G SWDM4 optical transceivers. Both have QSFP28 modules based on a common set of specifications. Their demo uses test systems provided by Anritsu Corp. and Viavi Solutions Inc. . All four companies are among the members of the SWDM Alliance.

    Using SWDM, multiple data streams from lasers emitting different wavelengths in the 850 nm band are multiplexed into a single fiber at the transmitter and demuxed at the receiver. The two companies explain that this provides a direct, low-cost solution for 100G data rate upgrades for data center customers who have an installed base of duplex multimode fiber (MMF) running at 10G.

  • Test capabilities are also on display from VeEX Inc. , which has launched a new mini Optical Time Domain Reflectometer (OTDR) designed for easy transfer and processing of results. It has also unveiled an Optical Spectrum Analyzer module and a new Multi Service Test module for its RXT-1200 test platform. (See VeEX Shows Off at ECOC.)

  • ColorChip says it is shipping new 100G QSFP28 10Km transceivers based on the recent 4WDM multi-source agreement (MSA) supporting large data centers and mobile backhaul applications. Finisar, Oclaro and Lumentum are also members, along with others.

    ColorChip says its transceiver is interoperable with 100G CWDM4 and CLR4 2Km transceivers as it is identical in the hardware design, and likewise offers a cost effective solution in a small QSFP28 form factor.

    The company's products are based on a proprietary waveguide-in-glass PLC-based (planar lightwave circuit) optical platform, coupled with fully automated photonic integration of active and passive optical elements. The company claims the approach has a number of advantages that ultimately result in a reliable, low-cost solution.

    Want to know more about communications ICs? Check out our comms chips channel here on Light Reading.

  • Outside the data center, 100G is quickly becoming inadequate, especially for connecting data centers to each other. The need for speed at longer distances is inspiring novel ways to satisfy that appetite.

    Effect Photonics is taking the system on a chip (SoC) approach to optical networking. The company says it combines all optical functions into a single chip, including multiple DBR lasers, low-voltage drive MZ modulators, AWG, and wavelength monitoring.

    Effect launched its 100G DWDM transceiver product family half a year ago; it has now moved on. The company, in collaboration with the Technical University of Eindhoven, said it is using PAM-4 to send 500G DWDM signals up to 75 km.

    The combination of the optical SoC approach, proprietary packaging, and PAM-4 reduces the cost, power and the physical size of the module. The approach sidesteps the need for long-haul coherent optical transceivers, Effect claims.

  • NeoPhotonics Corp. (NYSE: NPTN), meanwhile, said it is sampling a Class 40 high bandwidth micro-intradyne coherent receiver (HB Micro-ICR) capable of supporting 64 Gbaud symbol rates (32 Gbaud ICRs are standard). The HB Micro-ICR supports modulation up to 64 QAM, which when coupled with a NeoPhotonics Micro-ITLA laser can achieve 600 Gbit/s over distances of 80km.

    Using dual polarization QPSK modulation rather than QAM, however, the HB Micro-ICR extends the reach to 2,000km at 200 Gbit/s, which NeoPhotonics said is double the data rate of standard coherent transmission.

    The approach allows network system designers to increase bandwidth by up to a factor of six and dynamically change the reach and modulation format while keeping the number of components unchanged, which the company said helps play into the SDN trend, while greatly reducing the cost per bit.

  • Some developments announced at ECOC are still at the research level.

    HiLight Semiconductor said it just received a grant of about $2 million from the European Commission to pursue the development of ultra-low power CMOS ICs for 100G transmission.

    HiLight contends that using standard CMOS can save a significant amount of power, especially in data centers.

    The company said it expects to have samples available in early 2017.

    HiLight recently launched its low power chipset for 10G CMOS SFP+ applications.

    Separately, Nokia Corp. (NYSE: NOK) Bell Labs, Deutsche Telekom AG (NYSE: DT) T-Labs, and the Technical University of Munich said they have achieved a 1Tbit/s transmission rate in a field test, by using a new modulation technique that builds on QAM. (See Eurobites: Nokia, DT Hit 1 Tbit/s in Fiber Trial.)

    The demonstration shows that the flexibility and performance of optical networks can be maximized when adjustable transmission rates are dynamically adapted to channel conditions and traffic demands, the companies said. (See Nokia, DT Break Terabit Barrier.)

    The new modulation technique, called probabilistic constellation shaping (PCS), modifies the probability with which QAM constellation points are used. Traditionally, all constellation points are used with the same frequency, the companies explained. PCS instead uses constellation points with high amplitude less frequently than those with lesser amplitude to transmit signals that, on average, are more resilient to noise and other impairments. This allows the transmission rate to be tailored to ideally fit the transmission channel, delivering up to 30% greater reach.

    — Brian Santo, Senior Editor, Components, T&M, Light Reading

    (3)  | 
    Comment  | 
    Print  | 
  • Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
    Mitch Wagner
    Mitch Wagner,
    User Rank: Lightning
    9/21/2016 | 2:10:35 PM
    Into the danger zone
    Mitch Wagner
    Mitch Wagner,
    User Rank: Lightning
    9/21/2016 | 2:06:38 PM
    This is not Light Reading's first foray into Dusseldorf.
    User Rank: Light Sabre
    9/21/2016 | 9:22:24 AM
    and then there's this
    From The Founder
    Following a recent board meeting, the New IP Agency (NIA) has a new strategy to help accelerate the adoption of NFV capabilities, explains the Agency's Founder and Secretary, Steve Saunders.
    Flash Poll
    Live Streaming Video
    Charting the CSP's Future
    Six different communications service providers join to debate their visions of the future CSP, following a landmark presentation from AT&T on its massive virtualization efforts and a look back on where the telecom industry has been and where it's going from two industry veterans.
    LRTV Interviews
    AT&T: Creating Dynamic Networks to Meet Business Needs

    5|26|17   |   4:24   |   (0) comments

    As enterprises need more dynamic networks, service providers need to deliver on-demand, virtual services to meet those needs. AT&T is creating a networking fabric to mix-and-match SDN technologies for enterprise customers, says Roman Pacewicz, AT&T senior vice president for offer management and service integration, in an interview at Light Reading's
    LRTV Interviews
    EdgeConneX on Industry Headwinds & Tailwinds

    5|26|17   |   2:41   |   (0) comments

    At Light Reading's Big Communications Event 2017, EdgeConneX CTO Don MacNeil discussed the value of partnerships in the digital world.
    LRTV Documentaries
    4 Steps Toward a Higher Network IQ

    5|26|17   |     |   (0) comments

    At the Big Communications Event in Austin, Texas, EXFO CEO Philippe Morin explains how sensors and analytics can boost a network's intelligence and enable on-demand customer experiences. Find more BCE 2017 coverage here.
    LRTV Interviews
    BT's McRae Sheds Light on 4K Strategy

    5|25|17   |   4:45   |   (0) comments

    At Light Reading's Big Communications Event 2017 in Austin, Texas, BT Group's Chief Network Architect Neil McRae talks about what it took for BT to broadcast live sports in 4K. Catch up with all our BCE coverage at http://www.lightreading.com/bce.asp.
    From the Founder
    How the NIA Aims to Advance NFV

    5|25|17   |   08:07   |   (1) comment

    Following a recent board meeting, the New IP Agency (NIA) has a new strategy to help accelerate the adoption of NFV capabilities, explains the Agency's Founder and Secretary, Steve Saunders.
    LRTV Custom TV
    Better Solutions That Address Growing Scale

    5|25|17   |     |   (0) comments

    For Comcast, the X1 rollout and 17-fold increases in broadband speeds in the past 16 years are among factors driving the need for Energy 2020 solutions that reduce cost and consumption, says Mark Hess.
    LRTV Custom TV
    Ethernity Network Delivers Instant Offloading of Network Functions With All-Programmable Intelligent NIC

    5|25|17   |     |   (0) comments

    David Levi, CEO of Ethernity Networks, explains that programmability of the hardware makes the company's All-Programmable Intelligent NIC uniquely beneficial for communications service providers that need advanced data appliances with agile support of virtualization. Utilizing the company's patented network processing technology, Ethernity offers data path ...
    LRTV Documentaries
    BCE 2017: Vodafone Gets Obsessed With Cloud-Native

    5|25|17   |     |   (0) comments

    Vodafone's Matt Beal updates us on Project Ocean and explains why simple virtualization isn't enough of a goal for network transformation. Catch up with other BCE 2017 keynotes and news at http://www.lightreading.com/bce.asp.
    LRTV Documentaries
    BCE 2017: Intel's Take on Network Transformation

    5|24|17   |     |   (0) comments

    In this BCE 2017 keynote, Lynn Comp discusses Intel's vision for areas such as analytics, automation and service assurance. For more videos and BCE coverage, see http://www.lightreading.com/bce.asp.
    LRTV Documentaries
    Order From Chaos: The Steve Saunders BCE Keynote

    5|24|17   |   17:27   |   (0) comments

    Kicking off BCE 2017, Light Reading founder Steve Saunders lays blame for NFV's slow ramp-up and urges telecom to return to old-fashioned standards building and interoperability testing.
    Think of this as the video sequel to the recent columns he's written about NFV and the prospect of a telecom app store. (See

    LRTV Documentaries
    Service Provider Panel: Partnering in the Digital Era

    5|22|17   |     |   (0) comments

    Coopetition has always been part of telecom, but the ecosphere now includes data centers, vendors, apps developers, cloud service providers and Internet content providers. This BCE 2017 panel explores the new attitudes among network operators as to the value and variety of ...
    LRTV Interviews
    Site Demo: AT&T's IoT Flow Platform

    5|19|17   |   04:25   |   (0) comments

    At AT&T's R&D center in Tel Aviv, Israel, project leader Eyal Segev talks about the operator's Flow platform and how it helps to prototype IoT applications.
    With the mobile ecosystem becoming increasingly vulnerable to security threats, AdaptiveMobile has laid out some of the key considerations for the wireless community.
    Hot Topics
    Cities Clamor for More Clout at FCC
    Mari Silbey, Senior Editor, Cable/Video, 5/23/2017
    What's Blocking 4K TV Today
    Alan Breznick, Cable/Video Practice Leader, Light Reading, 5/22/2017
    Sonus & Genband Finally Combine to Form $745M Company
    Dan Jones, Mobile Editor, 5/23/2017
    Like Us on Facebook
    Twitter Feed
    BETWEEN THE CEOs - Executive Interviews
    One of the nice bits of my job (other than the teeny tiny salary, obviously) is that I get to pick and choose who I interview for this slot on the Light Reading home ...
    TEOCO Founder and CEO Atul Jain talks to Light Reading Founder and CEO Steve Saunders about the challenges around cost control and service monetization in the mobile and IoT sectors.
    Animals with Phones
    What Brogrammers Look Like to the Rest of Us Click Here
    Live Digital Audio

    Playing it safe can only get you so far. Sometimes the biggest bets have the biggest payouts, and that is true in your career as well. For this radio show, Caroline Chan, general manager of the 5G Infrastructure Division of the Network Platform Group at Intel, will share her own personal story of how she successfully took big bets to build a successful career, as well as offer advice on how you can do the same. We’ll cover everything from how to overcome fear and manage risk, how to be prepared for where technology is going in the future and how to structure your career in a way to ensure you keep progressing. Chan, a seasoned telecom veteran and effective risk taker herself, will also leave plenty of time to answer all your questions live on the air.