Alcatel Optronics says that its 1926 MAM is the first dual booster amplifier. Dedicated to optical cross-connects, metro and access links, it contains two independent 980nm-pumped single-channel EDFAs in a 100x90x12.7mm package, yielding a 30% reduction in footprint.

The 1926 MAM can reach +17dBm (50mW) optical output power in the C-band (1530-1565nm). Optical noise figure is typically less than 5dB for an input power of –6dBm. The electrical power consumption is less than 9W.

Cisco has entered the SAN switching market with its Multilayer DataCenter Switch 9000 family.

This consists of the MDS 9500 Series of Multilayer Directors (the fully modular six-, nine- and 13-slot MDS 9506, 9509 and 9513) and the MDS 9216 Multilayer Fabric Switch. This is claimed to be the industry's first modular fabric switch, with one fixed slot containing 16-ports of 1 or 2Gbit/s Fibre Channel and one expansion slot for additional ports.

Three MDS 9000 modules, the 16- and 32-port 1 or 2Gbit/s Fibre Channel Switching Modules and an 8-port IP Storage Module, support any combination of iSCSI and FCIP protocols.

The 9509, 9216 and 16- and 32-port 9000 are available from Q4/2002; the 9506 and 9513 and 8-port 9000 in first-half 2003.

With 1.44Tbit/s of internal system bandwidth, MDS 9000 supports up to 256 ports per switch and up to 768 ports per rack.

Juniper Networks' T320 Router allows the benefits of the T-series family on a platform right-sized for immediate needs, while providing cost-effective to dense 10Gbit/s interface capacities.

Using Juniper's third generation of high-density silicon, the T320 provides more than double the bandwidth density of alternative platforms, with increased power efficiency.

The T320 allows deployment of ultra-dense OC-3 ATM, SONET/SDH aggregation to provide, for example, transport of ATM and Frame Relay customer traffic over MPLS.

The T320 Router also supports dense Gigabit Ethernet aggregation needed for metro Ethernet and hosting applications.

Supporting 16 OC-192c/STM-64 ports in a chassis occupying just a third of a rack, the T320 also supports dense OC-48 and 10 Gigabit core applications.

Ixia's Fabric Tester is a multi-port Fibre Channel traffic generator and analyser to assess the performance and integrity of Fibre Channel switched fabrics, aimed at optimising high-performance and high-density storage networks.

Support for thousands of individual ports within a chassis-chained configuration and 200 ports within a single rack provides scalability to both gigabit and 2gigabit speeds. The tester offers a comprehensive Class of Service support, including Class 2 and 3 traffic, as well as mapping of upper layer protocols such as IP, SCSI and FICON.

QoS metrics and standard Tcl scripting are also integrated.

RAD's FCD-IPM E1/T1 Modular Integrated Access Device provides voice and data connectivity over E1 or T1 facilities based on TDM.

It includes two expansion slots, enabling support of 12 analogue voice ports or three sub-E1/T1 ports, a 4-port internal switch and a universal data port. It also includes a built-in IP access router. On the WAN side, it supports E1/T1 or fractional E1/T1 over copper or fibre links, CSU/DSU for T1, optional LTU for E1, Frame Relay services and ISDN BRI for data services back-up.

Nufern has expanded its line of 80mm select cut-off single-mode fibre to include 1310nm 1310-HP-80 and 1310M-HP-80 medium NA (=0.16) and 980nm 980M-HP-80 medium NA (=0.17) fibres, for use in small-form-factor components that require tight bend radii including couplers, pump diode fibre-tails and metro amps.

The 80mm medium NA fibres allow control of power budgets based on the type of fibre selected, enabling lower bend loss.

Core-clad concentricity is less than 0.5mm to ensure low splice losses.

Micro Networks' M2004-01 Frequency Translator — available at SONET/SDH and 10GbE frequencies up to 700MHz — integrates a high-performance PLL with VCSO SAW technology in a 9x9mm surface mount package to provide reference clocks with jitter of less than 1ps.

The M2004-01 features: two selectable reference clock inputs, serial or parallel programming of the PLL feedback divider (6 bits) and output frequency dividers (2 bits), external loop filter elements, differential LVPECL outputs and +3.3V operation.

ability to divide the VCSO frequency by 1, 2, 4, or 8.

Ando Electric's AQ2744 is a high-performance, high-power sensor with built-in integrating sphere in its input port.

Developed for the AQ2140 Optical Multimeter and to work in conjunction with the AQ2730 OPM unit and the AQ-9335 Connector Adapter, applications include power measurement of high-power light sources, such as Raman amplifiers and pumping source, and WDM systems.

The maximum optical input power of the AQ2744 is +40dBm (10W), the accuracy is ±2.5% under reference conditions, and the linearity is ±0.05dB. The sensor's wavelength range is 800–1650nm.

ITF Optical Technologies' hybrid All-Fiber component for Raman amplifiers depolarises and combines up to two pump lasers. It integrates depolarisation and wavelength-combining into a single device, eliminating polarisation pump combiners, wavelength pump combiners, and long lengths of polarisation-maintaining fibre.

All-Fiber reduces the complexity and cost of Raman amplifiers, while improving performance by minimising the polarisation-dependant gain over a wide range of wavelengths and temperatures.

Polytec PI's new line of micropositioning products includes Micro-Translation Stages, Ball Screw Driven Linear Actuators, Rotation Stages and Elevation Stages. Applications include photonics packaging and fibre alignment.

The stages and actuators provide typical minimum incremental motion of 50nm and below, but optional PZT drives have resolution of 1nm and below.

Both servo and stepper motors are available, along with stand-alone and PC-card controllers.

Complementing its 100x100, 150x100 and 300x100 products, Panduit's 50x50 Fiberrunner Routing System includes 50x50-hinged solid wall channel and 50x50-hinged slotted wall channel, hinging channel cover and 50x50 Quiklock coupler, which accepts 50x50 Fiberrunner/Fiber-Duct fittings.

All fittings maintain a minimum 50mm bend radius to protect against signal loss.

Kyocera Fineceramics has expanded its line of ceramic packages with hermetically sealed glass-to-metal packages, targeting passive devices such as optical switches, attenuators and wavelength lockers which do not need ceramic feed-throughs.

The packages use a range of lead-free, environmentally safe glass materials featuring low-to-high temperature (280–900ºC) sealing capabilities. Its low-temperature glass sealing technology can hermetically attach anti-reflective-coated optical lenses to the package.

TeraXion's TH-MTDC is a multi-channel tunable dispersion compensator suited for sub-band managed networks which can dynamically compensate dispersion for up to 16 DWDM channels (at 100GHz spacing) while adjusting the dispersion slope over a wide tuning range up to 1000ps/nm.

With low insertion loss and small footprint, they can be used either to complement or replace dispersion compensating fibre.

Due to a fully integrated industry-standard I2C interface bus, the 1901 OAE and 1904 OAE EDFAs of Alcatel Optronics' addressable DWDM optical amplifier family can be interconnected easily with other devices.

This allows remote monitoring of parameters such as power, gain, and pump current, adjustment, configuration, inventory management, response to warning alarms, and equipment testing, without disrupting traffic. System upgrades can be efficient, timely and cost effective.

There is a choice between automatic power control (APC), automatic gain control (AGC) or variable gain function.

Sorrento Networks' GigaMux metro DWDM product line now has an enhanced filter core which more than doubles the current filter density while enabling longer metro ring distances and more flexible OADM applications in the access market. It also provides an upgrade path to 128 channels, double the current capacity.

An an improved optical protection module allows 32 fully protected channels in a single rack, a 33% improvement in total system density.

Other features reduce the time needed to plan, install, provision, and maintain new wavelength services.

Sorrento is also introducing improvements that incorporate sophisticated node intelligence to optimise each node for end-to-end performance, including wavelength analysis and control and automatic power adjustment.

Lightconnect's Series 4000 MEMS-based fast variable optical attenuator (FVOA) is designed to prevent system damage and is suited to receiver protection or use as a safety switch during transmitter turn-up until the laser stabilises. Other applications include single- and multi-channel power control, as well as equalisation and optical add/drop.

The Series 4000 is able to block the transmission of light when no voltage is applied and reduce the attentuation as the voltage is increased.

Performance and reliability is the same as the Series 2000.

PD-LD Inc's XENPAK-compatible integrated CWDM module is based on Volume Bragg Grating (VBG) technology, created within photo-refractive glasses by direct writing.

In contrast to FBGs, VBGs allow free-space operation, independent of fibre geometry, resulting in simpler, lower-cost devices. VBGs can be used in transmission or reflection, simplifying device packaging.

The CWDM module integrates four DFB lasers with a compact multiplexer in a unit designed to fit into a XENPAK multi-sourced transceiver package. Optical performance complies with the IEEE 802.3ae standard for 10 Gigabit Ethernet transceivers operating over 300m to 10km links.

Applied Micro Circuits Corp has expanded into communications ICs for the deeply channelised metro and access markets with the single-chip Evros (S1208) mapper. AMCC claims that it saves up to 80% in real estate and power over existing five-chip devices.

The Evros S1208 supports channelisation for TDM transport or data termination applications, and industry-standard SONET/SDH to PDH mappings, alarms and diagnostics.

Flexible allocation of channels enables processing any valid combination of OC-12 down to DS1/E1 (with DS0 level visibility) traffic, providing flexibility for metro-edge add-drop multiplexer platforms.

Micro Networks' M625 Voltage Controlled SAW Oscillator (VCSO) is designed for 2.5GHz SONET/SDH (OC-48/OC-768) and Gigabit Ethernet applications. These include clock and data recovery, phase locked oscillators (PLO), low-noise frequency sources and hand-held communication oscillators.

Requiring a low supply voltage of +3.3Vdc, power consumption is 0.4W and phase noise is –100dBc/Hz at 1kHz.

The oscillator's small 0.6x0.8 SMT package and minimal power requirements reduce board space and circuit complexity.

Version 3.0 of Modelware's PluriBus POS-PHY Level 4 (PL4)/SPI-4 Phase 2 (SPI-4.2) Foundation and Manager cores includes features such as hitless bandwidth provisioning, high-speed FIFO Status channel, and a 128-bit user interface option to ease integration for ASIC and FPGA customers.

The cores comply with the OIF SPI-4.2 standard. Interoperability with PMC-Sierra's Xenon family of OC-192c POS/ATM and 10 Gigabit Ethernet devices was also verified in simulation with PMC-Sierra's PL4 models.

The Foundation core fully implements the PL4/SPI-4.2 protocol and provides an easy-to-use interface to the user's logic. The Manager core implements per-channel buffering, flow control, and credit-based data transfer scheduling.

Ixia's 40Gbit/s Bit Error Rate Testing (BERT) Load Module has a modular design which enables testing of 40Gbit/s parallel and serial devices, and operation from within Ixia's existing 400T portable chassis or 1600T tabletop/rack-mount chassis.

It is first to offer an SFI-5-compliant 17-channel parallel interface as well as a high-quality 40Gbit/s serial interface.

Parallel input/output modules can simultaneously transmit and analyse 16 data channels at 2.5Gbit/s and one SFI-5 de-skew channel. Serial input/output modules are available, with optional programmable frequency and amplitude and extended dynamic range options.

Ando Electric's AQ7750 is a single-unit, compact, high-performance optical sampling oscilloscope with a measurement bandwidth of over 500GHz, allowing measurement of optical waveforms of 160Gbit/s, plus transmission speed of 40Gbit/s. Time resolution is 800fs or less and jitter 200fs or less. Its wavelength range is 1530–1565nm. Measurement sensitivity is 5mWpeak (signal-to-noise ratio = 20dB).

A trigger gating function allows for waveform observation in circulating loop experiments for simulations of long-distance transmission.

The unit also features versatile analysis functions such as pulse waveform analysis (which evaluates pulse width, rise/fall times and jitter) and eye waveform analysis (which evaluates the eye opening factor of eye waveforms, signal-to-noise ratio etc).

Inphi's new family of high-speed logic devices operates at 13–50Gbit/s for applications needing both high performance and low power together with logic and control functions.

Applications include CDRs, channel coding, and re-timing for measurement equipment and SONET/SDH systems. Rise and fall times are 8ps, jitter <0.5ps rms, and differential output signal swings >1.2V.

The 13 and 25Gbit/s products are available in surface-mount land grid array packages; the 50Gbit/s devices in metal packages with V connectors or as bare die.

Keithley Instruments' model 2520INT Integrating Sphere Photodetector and model 2520 Pulsed Laser Diode Test System offer a complete pulsed source and measurement solution for LIV (light-current-voltage) testing of 980 and 1480nm EDFA pump lasers, Raman amplifiers, laser diodes, and high-power VCSELs at the wafer, bar, or chip level.

A 1in sphere with a germanium detector gives a wide wavelength range, easy set-up and integration, and superior low-level power measurement.

An SMA fibre tap allows measured light to be sent to another instrument simultaneously.

The 2520INT's Spectralon interior surface scatters, reflects and diffuses the light from the DUT uniformly with minimal absorption loss, allowing test of much higher-power devices without damaging the detector. It can handle pulse widths as short as 500ns, operating wavelengths of 700–1700nm, and outputs of 7W.

Spirent Communications' new AX/4000 routing solution, the mAX IP EX, builds on its mAX IP technology for evaluating the stability, scalability and performance of router technology and services for core and metro/edge networks.

CPU clock speed beyond 1GHz gives 100 times the routing emulation performance of existing designs. A flexible architecture also allows upgrade.

Support for 1000 BGP peers per port enables testing of latest-generation metro-edge devices targeted for BGP/MPLS VPN networks. The EX allows simultaneous emulation of 1000 BGP nodes, advertisement of prefixes and full line rate traffic generation and analysis for a wide range of network interfaces, supporting full stress-testing in the lab.

The EX also offers enhanced support for IPv6, as well as functional, conformance and performance testing of the latest protocols, including: BGPv4, OSPF-TE, IS-IS-TE, RSVP-TE and LDP/CR-LDP. The new G/A also supports functional and performance testing of BGP/MPLS VPNs and L2 frames over MPLS.

Tektronix's OSW 8000 Series Optical Switching Modules — compatible with the PRO 8000 laser source platform — integrate into existing bench set-ups and test systems, allowing sharing of instruments such as transmitters and analysers among multiple optical ports.

The switches maintain viable test repeatability by using MEMS technology to deliver uncompromised optical signals from point to point. A one-source test signal can be switched to up to eight destinations.

Four modules include bi-directional switching configurations ranging from 1x2 (one input, two outputs) to 1x8 (one input, eight outputs).

Spectrolab Inc has launched new 2.5 and 10Gbit/s InAlAs/InGaAs avalanche photodiodes (APDs).

A unique design incorporates an avalanche layer made of indium aluminum arsenide, rather than indium phosphide, offering low-noise and high-sensitivity.

Inphi Corp's 13705RZ non-return-to-zero (NRZ) to return-to-zero (RZ) converter is designed for use in SONET OC-192 long-haul and ultra-long-haul systems.

The 13705RZ supports data rates of up to 12.5Gbit/s with sufficient overhead for FEC but power consumption of <1W. It has output voltage of 1.2V peak-to-peak differential, rise and fall times of <15ps, jitter of <1ps rms, and an adjustable pulse width.

Compatible with both differential and single-ended RZ modulator drivers.

Vitesse Semiconductor has launched a third-generation family of extended multi-rate 2.5V CMOS transceivers (the VSC8142, 8145 and 8147) and Clock and Data Recovery devices (VSC8221, 8222 and 8223). Power dissipation is 700mW for the transceivers and 400mW for the CDRs.

Primary data rates range from STS-3/STM-1 to STS-48/STM-16 with FEC, with support for 1x and 2x Fibre Channel and Gigabit Ethernet, Fast Ethernet and FDDI.

Enhancements include automatic lock to reference clock operation, LOL and LOS status indicators, and FIFOs with automatic overflow reset. Three loopback modes provide system-level diagnostics.

Nyfors Teknologi and 3SAE Technologies claim the first automatic fibre window stripping unit — the compact, bench-top, PC-controllable AutoStrip. It is for applications including FBGs and fused fibre coupler manufacturing.

The unit removes a section of the coating (80/250/400mm) without causing damage or leaving residue. 3SAE eliminates the need for hot acid baths to strip and clean fibres at very high strength. The fibre window stripping unit automatically adjusts to a specified strip length (2–150mm) and completes the window stripping, leaving the fibre at near virgin strength (about 700kpsi).

NetTest's QuestFiber 2.1 is the latest version of its remote fibre monitoring system for full-service emerging and next-generation networks. NetTest says that it is the only system that allows proactive monitoring through the use of domains.

QuestFiber 2.1 supports spectral monitoring for DWDM networks. The Optical Channel Analysis module provides spectral information, including automated tracking of parameters such as OSNR, gain tilt and ASE noise levels along with power level and central wavelength tracking for each optical channel.

QuestFiber 2.1 now also provides an automated reporting tool for collecting, analysing and summarising optical network data on either a scheduled or ad-hoc basis.

The TVV-50 is a stand-alone fibre decoater based on Vytran's Thermal Vacuum Vaporisation coating removal process. This provides a clean, high-strength strip that does not require a secondary cleaning operation, ideal for high-volume automation.

The system can perform a window strip of up to 50mm, programmable in 3mm increments. All process control is fully programmable via an RS-232 serial interface, using Vytran's real-time embedded control software.

3M Optical Components' new fibre pigtail assemblies include:

  • Nickel/gold (Ni/Au) metallisation — solder can be reflowed up to 20 times for optimal alignment without solder pull strength or metallisation degradation;
  • A wedge fibre lens and anti-reflection coating, which improve the performance of edge-emitting devices by increasing light coupling efficiency.

3M says that use of the pigtails on standard single-mode and polarisation-maintaining fibres can improve the performance of pump laser modules and external modulators.

Mitsubishi says that its XENPAK- and IEEE802.3ae-compliant M69850 is the first silicon-on-insulator CMOS single-chip physical-layer transceiver large-scale IC (LAN-PHY LSI) for 10 Gigabit Ethernet.

Designed for optical modules, digital cross-connects, network routers and network switches. The chip is targeted at raising LAN and MAN data speeds.

SOI-CMOS enables integration of XGXS, PCS and PMA functions on one 1.8V chip. It provides faster transistors for better performance plus less substrate noise for lower jitter level, as well as latch-up prevention.

The XGXS, PCS, and PMA blocks incorporate Ser/Des, PLL, CDR, transmitter/receiver elastic FIFO, 8- to 10-bit encoder/decoder, 64- to 66-bit encoder/decoder, and gearbox functions. It provides data conversion between the 10.3Gbit/s PMA and 3.125Gbit/s XAUI interfaces. An XAUI-PMD interface service employs a differential low-voltage-swing,

AC-coupled interface to reduce power consumption. The device also provides an MDIO interface for full IEEE802.3ae compatibility.

Stockholm-based Transmode Systems has developed a new generation of CWDM systems using linear optical amplifiers, enabling CWDM to address traditional DWDM markets.

"Linear Optical Amplifiers have the potential to be as important for the CWDM systems as the EDFA has been for the long-haul transmission market", says Johan Sandell, VP R&D. "This opens up a number of new applications for us where longer transmission reaches are required".

Furukawa Electric has a new cable which uses OFS' AllWave fibre, though it will also make the fibre in its own plant.

AllWave supports a wavelength range of 1280–1625nm. By applying the OH-absorption-free manufacturing process, which decreases the loss at 1385nm to the maximum limit, available range expanded by 50% than before.

AllWave is fully qualified for the ITU-T G.652.C standard and has equal performance and compatibility with conventional single-mode fibres in other specifications. Also, the fibre lowers transmission costs using CWDM.

For long-haul DWDM applications, Furukawa Electric also has a series of cables using TrueWave RS" fibre, a non-zero dispersion shifted optical fibre.

More in Home