Lightwave articles from June 2006

Lightwave archives from June 2006

Vendors plot varied ROADM migration paths.(INDUSTRY)
June 1, 2006... Though the largest incumbent carriers, Verizon and AT&T, are bullish on the use ofmultidegree reconfigurable optical add/drop multiplexers (ROADMs) in the near term, they aren't the only customers in the market for ROADMs. Today, ROADMs almost...

Dispersion-tolerant technologies battle for attention.(TECHNOLOGY)(reconfigurable optical add/drop multiplexers)
June 1, 2006... Dispersion-tolerant transmission promises to become a popular request as metro and regional networks transition to 10 Gbits/sec--and perhaps a necessity as carriers implement reconfigurable optical add/drop multiplexers (ROADMs). Several module...

Multihaul DWDM networks emerge.(APPLICATIONS)
June 1, 2006... A combination of service provider organizational structure and existing technology has driven the architectures of most existing optical networks. Service providers adapted their organizations to fit the network segmentations of access,...

Lucent Technologies.(north america)(selected by U.S. Bancorp.)(Brief article)
June 1, 2006... U.S. Bancorp, the parent company of U.S. Bank, selected Lucent Technologies (www.lucent.com) for an optical network that will connect U.S. Bank operations in five cities spanning the east and west coasts of the U.S. Under the three-year...

Limelight Networks (www.limelightnetworks.com) selected MRV Communications' (www.mrv.com) LambdaDriver DWDM transport system.(north america)
June 1, 2006... Limelight Networks (www.limelightnetworks.com) selected MRV Communications' (www.mrv.com) LambdaDriver DWDM transport system fitted with 10-Gbit/sec transponders for its 10-Gigabit Ethernet fiber-optic ring network, connecting data centers in...

Metropolitan area network provider Open Access (www.openaccessinc.com) deployed ADC's (www.adc.com) LoopStar 1600 and 810 SONET.(north america)
June 1, 2006... Metropolitan area network provider Open Access (www.openaccessinc.com) deployed ADC's (www.adc.com) LoopStar 1600 and 810 SONET transmission and access systems to provide TDM services to mobile carrier customers in the Long Island and New York...

Firecomms.(europe)
June 1, 2006... Firecomms (www.firecomms.com), a developer of photonics communications devices supporting the use of plastic optical fiber in FTTH applications, closed a 9.6 million [euro] investment round led by new investors ACT Venture Capital of Dublin and...

GlobalConnect (www.globalconnect.dk), a telecom infrastructure provider based in Denmark, named Ciena (www.ciena.com) as its preferred supplier of 10-Gigabit Ethernet DWDM and SDH transport and switching equipment.(europe)(Synchronous Digital Hierarchy )(Dense wavelength division multiplexing)(Brief article)
June 1, 2006... GlobalConnect (www.globalconnect.dk), a telecom infrastructure provider based in Denmark, named Ciena (www.ciena.com) as its preferred supplier of 10-Gigabit Ethernet DWDM and SDH transport and switching equipment. The provider deployed Ciena's...

KPN (www.kpn.com) selected Lucent Technologies (www.lucent.com) to supply network equipment, software, and services in a deployment of Ethernet-based services to KPN's enterprise customers in The Netherlands.(europe)(Brief article)
June 1, 2006... KPN (www.kpn.com) selected Lucent Technologies (www.lucent.com) to supply network equipment, software, and services in a deployment of Ethernet-based services to KPN's enterprise customers in The Netherlands. The equipment was supplied by World...

Fujitsu (www.fujitsu.com) and Mitsui (www.mitsui.co.jp) jointly established an optical device venture, QD Laser Inc. (QDL), which will leverage venture capital funding from both companies in support of Fujitsu's quantum dot laser technology.(asia)(Mitsui and Company Ltd.)(Brief article)
June 1, 2006... Fujitsu (www.fujitsu.com) and Mitsui (www.mitsui.co.jp) jointly established an optical device venture, QD Laser Inc. (QDL), which will leverage venture capital funding from both companies in support of Fujitsu's quantum dot laser technology....

KT Corp. (www.kt.co.kr), the former Korea Telecom, launched its intelligent WDM (I-WDM) network, based on Meriton Networks (www.meriton.com) Aglie Optical Networking architecture.(asia)
June 1, 2006... KT Corp. (www.kt.co.kr), the former Korea Telecom, launched its intelligent WDM (I-WDM) network, based on Meriton Networks (www.meriton.com) Aglie Optical Networking architecture. The network employs the Meriton 7200 optical switching platform...

Olympus (www.olympus.co.jp) and Movaz Networks (www.movaz.com) created a joint venture company, named Olympus Microsystems America Inc.(asia)(Brief article)
June 1, 2006... Olympus (www.olympus.co.jp) and Movaz Networks (www.movaz.com) created a joint venture company, named Olympus Microsystems America Inc. (www.olympusmicrosystems.com), to globally provide microelectromechanical systems (MEMS)-based technologies...

PSI-TEC Corp.(tested nanotechnology-engineered organic material called Perkinamine-NR)(Brief article)
June 1, 2006... PSI-TEC Corp. (www.psiteccorp.com), a wholly owned subsidiary of PSI-TEC Holdings Inc., says it has successfully tested a nanotechnology-engineered organic material with a molecular electro-optic coefficient approximately twice that of the...

The Optical Internetworking Forum (OIF--www.oiforum.com) and Network Processing Forum (NPF--www.npforum.org) announced their intent to merge.(update)(Brief article)
June 1, 2006... The Optical Internetworking Forum (OIF--www.oiforum.com) and Network Processing Forum (NPF--www.npforum.org) announced their intent to merge. The merged group will retain the OIF name as well as its management structure. Two new working groups...

The tide rises in the East.(Yahoo! BB is using OC-768c/ STM256c optical interface card of Cisco Systems Inc.)(Editorial)
June 1, 2006... While the newspaper editor Horace Greeley earned fame here in the U.S. for being credited with the proclamation, "Go West, young man" (historians now say the phrase originated elsewhere), those interested in the future of high-bandwidth...

Duobinary modulation for optical systems.(Technology: Advances in research, development, engineering, and standards)(Column)
June 1, 2006... Optical systems by and large use non-return-to-zero (NRZ) modulation. While NRZ modulation is suitable for long-haul systems in which the dispersion of the singlemode fiber is compensated for by another fiber with negative dispersion, it is not...

Home networks change carriers' test paradigm.(TECH TRENDS)(fiber-to-the-home/node)
June 1, 2006... For the traditional telecom carriers, fiber-to-the-home/node (FTTH/N) opens new territories in installation, testing, and troubleshooting. In the past, the outside of the home provided a clear demarcation point between carrier and customer; the...

The light side.(Cartoon)
June 1, 2006... Caption: "We couldn't agree on optical communications network standards, so we were forced to develop light speed space utility vehicles just to stay in touch."

POF in international cabling standards.(STANDARDS WATCH)(plastic optical fibers)(by International Electrotechnical Commission)
June 1, 2006... A revised version of IEC 60793-2-40 ("Sectional Specification for Category A4 Multimode Fibres") containing four new high-performance plastic optical fibers (POFs) was published in March (see Standards Watch, Lightwave, May 2006, page 12). With...

System engineering design and validation tool.(DESIGN & MANUFACTURING)
June 1, 2006... OptiSystem 5.0, the latest version of the optical communication system design suite, now includes features that assist in simulating and designing free-space optics and radio over fiber applications for wireless mesh networks. Updated component...

Bare-fiber shaping workstation.(DESIGN & MANUFACTURING)
June 1, 2006... With the Trig workstation, fiber tips can be polished flat or at user-selectable angles. Real-time video monitoring allows accurate control of shaping, and an in-line vision system permits inspection of polished surfaces while the fiber is...

Free QC checklist.(DESIGN & MANUFACTURING)("Dispensing Components QC Checklist" from EFD Inc.)(Brief article)
June 1, 2006... The "Dispensing Components QC Checklist" delivers 15 simple checks to help users of air-powered and mechanical fluid dispensers achieve better process control, reduce waste, and increase productivity. The complimentary booklet features numerous...

Plastic optical fiber transceivers target Fast Ethernet applications.(PRODUCT PROFILE)(Firecomms EDL300)
June 1, 2006... Firecomms (www.firecomms.com) has released an integrated 650-nm fiber-optic transceiver (FOT) along with a "highly sensitive" receiver that operates with IEEE 802.3u Fast Ethernet data communications networks. The company's EDL300 series of...

Optical communication design suite.(DESIGN & MANUFACTURING)
June 1, 2006... The Optical Communication Design Suite version 4.6 includes OptSim and the multimode add-on ModeSYS. A new bit-error ratio estimation technique handles noise statistics based on Karhunen-Loeve series expansion for optical signal and noise,...

Extension platform for storage area networks.(SYSTEMS)
June 1, 2006... The BroadGate SAN XT enables disaster recovery and business continuity for hundreds of kilometers, at a throughput up to 2.5 Gbits/sec for high-end storage applications, over DWDM networks, SDH/SONET infrastructures, dark fiber, or...

Fiber-optic transmission platform.(SYSTEMS)
June 1, 2006... The Optiva fiber-optic transmission platform features customizable multioriented video, audio, and data input configuration; daisy-chained time-division multiplexing; intelligent bandwidth allocation (up to 2.5 Gbits/sec); and an upgrade path...

GEPON optical network terminal.(SYSTEMS)
June 1, 2006... The Xgen6000 is a Gigabit Ethernet optical network terminal (ONT) designed to operate on an ITU-standard PON and support redundant fiber feeds while economically providing SONET reliability. The ONT extends the family of Extended Gigabit...

Miniature CWDM components and subsystems.(SUBSYSTEMS)
June 1, 2006... A line of miniature CWDM components, as well as a range of line cards, splice cassettes, and 19-inch rack-mountable modules, is suitable for outside-plant applications such as metro edge networks. Operating endurance has been demonstrated from...

Erbium-doped fiber amplifier.(SUBSYSTEMS)
June 1, 2006... Offering an extended operating temperature range from -40[degrees] to +85[degrees]C, the NP2000-XT erbiumdoped fiber amplifier (EDFA) operates beyond Telecordia requirements, making it suitable for demanding FTTH applications. The EDFA provides...

Miniaturized connectivity devices.(SUBSYSTEMS)
June 1, 2006... The MiRIC series of miniaturized Fast Ethernet over PDH and SDH/SONET connectivity devices implement the Smart SFP design, which allows the device, housed in a standard SFP package, to support LAN bridging, OAM, VLAN tagging, flow control, and...

FTTH supervisory channel filter.(SUBSYSTEMS)
June 1, 2006... Proprietary fiber Bragg grating (FBG) technology enables the integration of the 1901FBF Power-Bragg supervisory channel filter into the singlemode fibers connecting subscribers to an FTTH network. Remote, real-time monitoring of performance,...

Low-power grooming switches.(COMPONENTS)
June 1, 2006... The VSC9190 50-Gbit/sec and VSC9191 100-Gbit/sec time slot interchange (TSI) grooming switches incorporate automatic protection switching and rate aggregation into a single unit to reduce board chip count by a factor of five. The switches...

Two-port 10-Gigabit Ethernet MAC.(COMPONENTS)
June 1, 2006... The Redhawk, a two-port 10-Gbit/ sec intelligent media access controller (MAC), incorporates embedded XFI SerDes and multiprotocol congestion management technology. The MAC is integrated on an evaluation platform with a dual-port card that can...

GPON and WAN transceivers.(COMPONENTS)
June 1, 2006... The S3157PBI G.984-compliant transceiver with clock and data recovery is the first in a series of GPON products. Designed for WAN applications, the S3165PBI multirate (125 Mbits/sec to 2.67 Gbits/sec) OC-48 transceiver is a SerDes device with a...

Building an edge for the future.(Applications: Innovative component, subsystem, system, and network design examples and alternatives)(network traffic management)
June 1, 2006... The shifting balance between circuit-switched and packet traffic has changed carriers' requirements for traffic aggregation onto the metropolitan network. As the "core network" becomes more of an "IP core network," dominated by rising demand...

Lighting France's 'Capital of Light' with optical fiber.(CASE BY CASE)(la Regie Intercommunale d'Energies et de Services building optical network)
June 1, 2006... Known for its rich history dating back to medieval times, the French city of Chartres refers to itself as "The Capital of Light and Perfume." While the perfume is abundant, the city's 42,000 inhabitants were left in the dark in terms of...

As market grows, so does VC interest.(Industry: Opportunities, market intelligence, and forecasts to improve your bottom line)(venture capital companies)
June 1, 2006... By most standards, the optical communications market shows renewed life. Besides the immediate benefits of increased revenues, the increased health of the space should improve the industry's strained relationship with the financial community....

Optical equipment market on the comeback trail.(ANALYST CORNER)
June 1, 2006... The optical equipment market was the epitome of the technology boom and bust of the late 1990s and the turn of the century. As telecommunications and Internet service providers rushed to construct optical communications networks, they spent...

New approaches to FTTP.(www.lightwaveonline.com)(Fiber-to-the-node )(Brief article)
June 1, 2006... Fiber-to-the-node (FTTN) has long been viewed as antithetical to FTTP; service providers either opted to pull fiber all the way to the customer premise, or they stopped at the serving area interface crossconnect and employed ADSL2+ or VDSL2 for...

Creating a cost-effective plug-and-play FTTP architecture.(www.lightwaveonline.com)(Fiber to the premises)(Brief article)
June 1, 2006... Today's FTTP network planners must build flexible and reliable architectures at the lowest possible cost. Current hardened connector technologies, coupled with multiport service terminals, are enabling accelerated plug-and-play deployment while...

EATEL brings the triple play to 'Cajun Country'.(www.lightwaveonline.com)(Brief article)
June 1, 2006... EATEL, a privately owned Louisiana communications company serving an area between Baton Rouge and New Orleans, has been providing telephone services since 1935 and Internet service since 1995. Through careful planning, EATEL met its goals to...

The changing role of SONET/SDH.(www.lightwaveonline.com)(Synchronous optical network)(Synchronous Digital Hierarchy)(Brief article)
June 1, 2006... For the last 20 years or so, SONET/SDH has remained the optical infrastructure of choice for almost all critical network architectures. However, the number of new optical services has grown to include storage protocols, even faster Ethernet,...