The NTK3655 and NTK3656 series are FMFDM-based multiplexers that transmit four video channels one way and duplex audio and data on one fiber. Marketed for security/surveillance and ITS, they are available as LED-based, 1,300-nm multimode versions for up to 4 km. The products also come in singlemode versions that employ 1,310-nm lasers for distances of 40 km and comply with RS-250C medium-haul. Features include 7.5-MHz video bandwidth, >60-dB signal-to-noise ratio, 17-dB optical budget, and optical dynamic range.
NTK NewTech, Princeton, NJ
Dense subcarrier multiplexing technology
This fiber-optic communications technology provides a four-fold increase in data speed and capacity compared to existing methods, according to the company. Dubbed dense subcarrier multiplexing (xDSM), this technique uses a combination of digital signal processing, multilevel signaling, and subcarrier multiplexing to achieve high-speed transport on optical wavelengths. The xDSM technology has applications in long-haul DWDM, intermediate-reach MANs, and short-reach storage-area networks.
Altra Broadband, Irvine, CA
This 10-Gbit/sec VCSEL-based 1,310-nm serial transponder for high-bandwidth optical interconnects provides a reduction in cost, power consumption, and board space to enable high-density 10-Gbit solutions. The 200-pin transponder features a jitter filter, high-speed serializer, laser driver, and a 10-Gbit/sec 1,310-nm VCSEL on the transmit side, while the receiver incorporates a PIN photodiode, transimpedance amplifier, limiting amplifier, clock and data recovery circuit, and deserializer to complete the module. The SC or LC pigtailed optical connections enable flexible positioning in tight layouts. The transponder is targeted at standards-compliant optical-networking markets that include systems such as switches, routers, add/drop multiplexers, and broadband interconnects.
Cielo Communications, Broomfield, CO
Digital DWDM transport
The GIGALight is a DWDM solution for transporting multiple Gigabit Ethernet, SONET, and/or ATM data streams over a single fiber. The product supports a variety of digital transport applications, including video-on-demand, high-speed data, and IP telephony. GIGALight features a modular family of products that includes transmitters, receivers, and transceivers. Signals can be multiplexed and transported over distances of up to 200 km.
Harmonic Inc., Sunnyvale, CA
The GainMaker fiber-deep node is an addition to the GainMaker broadband access platform. The product can be deployed in two ways. One way applies to systems that already use GainMaker amplifiers (cable equipment that ensures signal quality to subscribers is maintained regardless of the distance from the headend). Users can convert these amplifiers to GainMaker fiber-deep nodes by replacing the amplifier lid with a node lid and making a minor change to the module. The second method applies to rebuilds, upgrades, or new build environments; the Gainmaker is suited to bring reliability and performance to a cable system. Features include two or three output capability, up to 38 dB of gain, familiar optical components already used in Prisma model 6940 nodes, and the same accessories as GainMaker amplifiers.
Scientific-Atlanta Inc., Atlanta
This line of low-dispersion 50-GHz and 100-GHz DWDM filters is suited for transmission speed from 10 to 40 Gbits/sec. These TF-WDM-LD DWDM filters will enable high-performance DWDM system deployments, as they are designed to minimize group delay variation inside and outside their passband. Minimizing the group delay variation reduces both the level and variation of chromatic dispersion introduced by the filter to the elected channel as well as to the adjacent and non-adjacent express channels. At 40 Gbits/sec, the total group delay variation must be well below 10 psec.
TeraXion, Quebec City
This family of high-density SONET-compliant optical transceivers for OC-3 and OC-12 data rates is suitable for next-generation MAN equipment applications. All transceivers meet ITU-T G.957 and G.958 and Telcordia FT-468 and TR-NWT-000253. The products exhibit low levels of jitter over the full Telcordia operating range of -40 to +85°C. The transceivers are available in three different form factors: a 2x5 small-form-factor (MSA-compliant) package, a single-port RJ-style package, and a quad-port RJ-style package. Each will be available in OC-3, OC-12, and a multirate version that will operate at either OC-3 or OC-12.
Stratos Lightwave Inc., Palm Bay, FL
Monitor photodiodeThis series of miniature silicon photodiodes is intended for use as power monitors with VCSELs operating at 850 nm. Typically, these detectors are positioned to intercept the light reflected from the VCSEL exit window; their output signal is then used for active laser power stabilization. These photodiodes are provided in bare die format and can be configured to fit in a variety of standard VCSEL packages, including TO18, TO46, and TO52. They are designed to be compact, with active areas of approximately 1 mm2 to minimize overall source size. The design of the wirebond pad, die attach, or metalization pattern on the chip can be customized to mate with a customer's specific VCSEL configuration.
Advanced Photonix Inc., Camarillo, CA
This 8-ft raceway channel is part of the Raceway Solution. The product, which complements the existing 6-ft raceway family, utilizes an adhesive-backed, one-piece design for easy installation and cable routing. The company's raceways come equipped with all necessary fittings from floor to ceiling and are designed to maintain the minimum bend radius for both copper and fiber cables. The channels incorporate a self-locking latch and can be accessed multiple times without cracking or discoloring. The vinyl material can be easily cut or trimmed to fit any application. The raceways are available in ivory, white, and gray, or they can be painted to match any dècor and are available in a variety of widths and depths.
ICC, Cerritos, CA
The Platinum family of ultra-low-loss cable assemblies features an insertion loss of 0.02 dB. The assemblies include singlemode SC connectors and are available with simplex cable designs. The assembly family retains the features and benefits found in the company's SC connector assemblies. The connectors are compliant to TIA/EIA 604-3 and 604-4A, fiber-optic connector intermateability standards for SC connectors, and the assemblies are designed and tested to Telcordia GR-326-CORE. All assemblies feature optimized ferrules for optical performance.
Corning Cable Systems., Hickory, NC
Ladder rack bracket
This adjustable ladder rack bracket is designed for use with the FiberRunner 6x4 fiber routing system, which routes fiber-optic or high-performance copper cabling runs between equipment racks within a telecommunications room or service-provider facility. The adjustable ladder rack bracket is constructed of heavy gauge with a black epoxy E-coat finish. It can be installed to either a 1.5x0.37-inch or 2x0.37-inch ladder rack rail. The upright bracket is designed for quick assembly to a ladder rack. The "L" mounting bracket can be easily adjusted to nine incremental positions from 4 to 12 inches above the side rail. To locate cable routing below the ladder rack, the bracket can also be deployed in a downward position from the ladder rack.
Panduit Corp., Tinley Park, IL
Production test solution
The OTS9300 module is designed for use with the company's optical test platform. Using this module, manufacturers can complete testing of various optical standards-from all existing SONET/SDH DWDM standards to the leading-edge rates of OC-192 at 10 Gbits/sec simultaneously-while retaining product quality and reducing test time and costs. In addition, the module uses a technology that allows users to test network components in a real-world environment. The product, consisting of one transmitter card and one receiver card, adds three new data rates (2.5 Gbits/sec, 622 Mbits/sec, and 155 Mbits/sec) to the platform's 10-Gbit/sec capability.
Tektronix Inc., Beaverton, OR
Visible fault locator
This high-power visible fault locator is housed in a rugged handheld case and delivers up to 8 mW of visible light through a singlemode fiber. The fault locator is designed to help detect breaks, microbends, and poor surface finishes in fiber-optic cables and connectors. A visible laser diode is used to launch light into the fiber. When the light encounters a break or microbend, it scatters. The scattered light can be observed emerging from the cable. By using a high-power version, faults can be detected up to 10 km from the source. Fault locators can also be used as an end-to-end fiber identifier or with mechanical or fusion splicers to minimize splice losses.
Oz Optics Ltd., Carp, Ontario
Design and Manufacturing
The VPIplanningCenter provides an enterprise platform for seamless exchange of planning results and data across multiple network layers, using a comprehensive range of the company's tools. The product interfaces to OSS and NMS, promoting a consistent view of the network as a starting point for optimization. The product synchronizes asynchronous teamwork at critical points in the planning process where compatibility is essential. For example, the codes for node locations must be shared among different technologies such as TDM voice switching and collocated broadband packet routing.
VPI Virtual Photonics, Holmdel, NJ
Excimer laser writers
The BraggStar series of compact excimer lasers is designed for writing fiber Bragg gratings and is available in different models that vary in repetition and wavelength. The standard model BraggStar is equipped with the company's CeraTube, running up to a repetition rate of 200 GHz or 500 Hz. The high-end version, BraggStar Industrial is designed for high-duty cycle industrial writing sites and equipped with the company's FutureTube, operating up to 1,000 Hz. The BraggStar series delivers pulse energies of 8 mJ with ArF at 193 nm and 18 mJ with DrF at 248 nm. The products were designed with a special resonator layout creating perfect coherence properties in the laser beam for phase mask FBG writing technique. The spatial coherence length is 1,200 microns with the standard BraggStar and 1,500 microns with the BraggStar Industrial.
TuiLaser AG, Munich
Optical-fiber winding system
The table-top model RS 100 FO winding system for optical fiber features both a spooler and payoff. It can be operated from either a standing or sitting position and places such functions as threading, loading, and unloading within arms' reach to maximize efficiency. The control panel offers the digital entry of winding parameters such as package width and material length to optimize accuracy, and a state-of-the-art stepper motor provides pitch control with digital readout in 0.0001-inch or 2.5-micron increments.
Progressive Machine Co., Ringwood, NJ
"Interconnecting Telecom and Data Networks" literature features the company's total solution capabilities for optical and electrical applications. The comprehensive source guide highlights product features and supports designers' needs for information in bringing the convergence of voice, video, and data. The brochure illustrates a wide range of the company's interconnect products, from backplane and rack solutions to time-tested, industry-standard products for networking and telecommunications.
Molex Inc., Lisle, IL
The "Connectors and Connectorization" training video is the first in a series of training videos featuring training specialist John Bruno. It is a tutorial that shows viewers how to assemble both the ST and SC connectors. The information can be applied to other connectors as well.
Fiber Instrument Sales, Oriskany, NY