NEC FiberOptech's new six-product 10Gbit/s MSA Optical Transponder line comprises the following models:

  • OD-J8665 – 25km, 9.95Gbit/s;
  • OD-J8666 – 40km, 9.95Gbit/s;
  • OD-J8791 – 25km, 9.95 and 10.7Gbit/s with dual-rate jitter clean-up filter;
  • OD-J8792 – 40km, 9.95 and 10.7Gbit/s with dual-rate jitter clean-up filter;
  • OD-J8793 – 25km, 9.95, 10.3 and 10.7Gbit/s multi-rate;
  • OD-J8794 – 40km, 9.95, 10.3 and 10.7Gbit/s multi-rate.

The transponders measure just 75x55x12mm and support 300-pin multi-source agreement specifications. Also, they need just 4W of power at 25ºC and 6W at 70ºC.

Other features include:

  • support for SONET, SDH and 10Gbit/s Ethernet applications;
  • cooled EML and PIN photodiode optical modules;
  • built-in 16:1 multiplexer and 1:16 demultiplexer;
  • a 6xx.xx Mbit/s LVDS electrical interface.

Through the use of a 1mm coaxial connector, Discovery Semiconductors' DSC10W ultra-wide-bandwidth PIN photodetector can provide bandwidth of DC to over 70GHz.

Also available using the 1.85mm V-type connector is the DSC10ER detector, in three grades: 55, 60 and 65GHz.

These fibre-coupled, hermetically sealed modules are offered in the battery-operated Lab Buddy.

TPT's semi-automatic wire bonders are suitable for prototype development through to medium-volume production.

A wire feed angle of 90º provides a deep-access bonding capability for 17–75µm wire diameters, or ribbon bonding of up to 25x250µm.

For applications requiring both ball and wedge bonding, the bonding tool can be changed and the appropriate bonding mode software-selected.

The systems also has true motorised Z-motion, touch-down sensing, programmable Y-table motion and automatic wire feed.

The Electronic Device Group of Mitsubishi Electric & Electronics USA has a 40Gbit/s electro-absorption (EA) modulator chip and module for C-band applications.

The devices' high input power tolerance enables a significant transmission distance boost to 40km without an optical amplifier when using dispersion-shifted fibre.

RAD Data Communications has launched its Vmux-2100 compressed voice gateway, the next generation of its Compressed Voice System (CVS) family. It enables up to 16 E1 or T1 lines to be extended over a single E1, T1 or Ethernet uplink.

Like typical VoIP systems, the Vmux-2100 supports G.723.1, G.729A and G.711 standards.

But, using packet-based TDM over IP (TDMoIP) technology, it can support a more efficient use of bandwidth through even higher compression rates. VoIP currently yields voice compression rates at 10–12kbit/s, but Vmux compresses to as low as 5.3kbit/s.

At just 1U (1.75") high, the Vmux occupies less space than the average VoIP system.

"Because it can be configured either with a TDM or Fast Ethernet uplink, the Vmux can provide a smooth migration path from TDM-based applications to the world of IP," said Ron Sapir, Senior Product Line Manager at RAD Data Communications.

Phoenix Photonics has a new option for its range of high-performance fibre depolarisers to meet the needs of PDG reduction in Raman amplifiers.

Designed to provide <5%DOP with low insertion loss, from any commercial Raman pump laser, these wide-band depolarisers will operate to specification at any wavelength in the 14XXnm range.

The standard option can be used either with a single high-power pump and provide effectively randomised polarisation or following a polarisation multiplexer, randomising both polarisation states.

An option is available with integrated polariser to improve performance when used directly from the laser.

Santec's 50GHz thin-film filters are designed for optical add/drop. These three-port filters have, Santec says, "outstanding" optical performance, incorporating a wide pass-band with excellent isolation characteristics.

NetTest has added jitter test and pulse shape measurement features to its Lite 3000E handheld network field-testing instrument for fixed and mobile networks. Future releases will include pulse shape measurement.

These will allow advanced physical layer measurements on 2Mbit/s.

If the basic test facilities detect transmission errors, then a detailed analysis can be performed.

Features include:

  • Jitter generation and measurement on 2Mbit/s interfaces;
  • Test of jitter requirements;
  • Jitter tolerance testing;
  • Jitter transfer measurement.

Testing capabilities include frame relay, data and 2Mbit/s transmission lines. Other options provide advanced signalling analysis capabilities such as GSM/GPRS, Abis, SS7 and ISDN protocols from one portable platform.

In-line signal acquisition is available with Santec's high-speed integrated tap photodetector (HS-IPD). Available in configurations in the 1270–1370 and 1510–1610nm bands, they allow real-time bit error rate monitoring to be performed without interruption or degradation of data flow.

When a number of data signals are present on a fibre, the HS-IPD-F can be used with an integrated channel selection filter to isolate and measure the channel of choice.

Integrated photonics component supplier Gigabit Optics claims that its first product, the MicroMux CWDM multiplexer/demultiplexer, is 200 times smaller than currently available products. Also, its micro-optical platform technology reduces assembly time, increases manufacturing yields and reduces the number of components, it is claimed.

INO's MM High Attenuation Fiber (HAF) uses a new manufacturing technique that results in multi-mode fibres with attenuation levels of 0.05–5dB/cm at 850nm. The fibre is suitable for the fabrication of fixed-type attenuators in applications such as Gigabit Ethernet for FTTH or last mile access networks.

The MM HAF is compatible with standard 50/125µm fibre installed in the local loop with a numerical aperture of 0.2. Attenuation uniformity is better than ±10% over a 100nm bandwidth, says INO.

Oki Electric's new OD9241N 10Gbit/s surface-mount optical receiver modules combine low power consumption, high transimpedance and a compact surface-mount design based on the MSA announced in March by Agere Systems and Nortel Networks.

The MSA for optical receivers defines product-package dimensions, pin out and function assignments, and optical and electrical characteristics for small-form-factor surface-mount receivers.

Agilent Technologies has developed a family of AWGs based on CVD of glass on silicon for DWDM long-haul and metro networks — a result of its acquisition of Silicon Micro Systems, as well as its first passive components.

"Our silicon-based technology is a solid platform that will enable us to integrate more features, allowing for the cost-effective manufacture of complex devices such as reconfigurable OADMs," said Silicon Optics Operation manager Giosue Iseni.

Initial specifications call for 40 100GHz-spaced channels, supplied in both narrow Gaussian passband and wide flat-top passband versions.

Switzerland's Opto Speed has expanded its 40Gbit/s optical receiver front-end module portfolio for line-interface, client-interface and VSR (<2km) applications.

The differential receiver modules are compliant with the multi-source agreement announced by Fujitsu and JDS Uniphase's in March 2002. The modules comprise a PIN detector, a post amplifier and a limiting amplifier with differential outputs, monolithically integrated on an indium phosphide chip.

This allows a large differential output signal of 800V/W which can be fed directly into a demux/CDR. Additional electronic post-amplifiers can be omitted. The RX40D0-130 is designed for VSR (<2km) transponder applications in central-offices. The

RX400D0-230 is optimised for line-interface applications, where the signals are optically pre-amplified.

For client-interfaces of transport systems the RX40D0-530 has a conversion gain of 800V/W.

Koncent Communication has released a "two-in-one" isolator with ultra-high isolation of up to 42dB; ultra-low insertion loss down to 0.3dB; and ultra-low PMD down to 0.02ps. Applications include EDFA, CATV, fibre-optics links, WDM and DWDM systems, fibre-optics instruments, transmitter and fibre lasers and R&D.

Axiom Systems' pre-integrated Metro Ethernet solution provides the following:

  • multi-site configuration;
  • variable bandwidth on demand;
  • multi-customer infrastructure;
  • the ability to deliver multiple services faster and more economically.

The automated system incorporates integrated workflow, inventory and automated self-provisioning.

Fujitsu Network Communications' latest version of its Flashwave 7300 high-density transponder system has a smaller footprint, tunable lasers and more efficient power utilisation.

The platform provides self-healing network protection, 2.4Gbit/s muxponders to maximise use of wavelengths, FEC for longer spans, and digital wrapper technology to enhance the performance monitoring and fault isolation in DWDM.

Further savings come through use of 22-channel tunable lasers, which allow all wavelengths in the C and L bands to be supported.

Together with the Flashwave 7700 long-haul DWDM system, the 7300 can transport 176 full duplex channels at 10Gbit/s in under five racks of equipment.

fSONA Communications' SONAbeam 270-M free space optical system for digital video is designed for SMPTE standards 259-M C and D at 270 or 360Mbit/s. SONAbeam supports standards including HDTV, SDI and DVB-ASI and interfaces optically to multiplexers, encoders/decoders, switches and routers to support analog formats such as NTSC or PAL.

Luminous Networks has introduced Asynchronous Serial Interface (ASI) and Intermediate Frequency (IF) video cards for its PacketWave metro optical access platform.

The ASI digital video broadcast card supports the transport and interconnection of MPEG-2 transport streams. The main application is video distribution, providing continuous broadcast transport streams to multiple sites throughout metro area networks.

The IF card provides transparent regional distribution of analogue or digital video service over long distances. It allows analogue IF carriers or digital modulated QAM IF carriers to interface directly to the PacketWave system chassis for transport over a Resilient Packet Ring network.

Luminous' PacketWave platform combines Ethernet, TDM, and wavelength services.

Cisco Systems has enhanced its Metro Ethernet Switching portfolio for next-generation broadband models serving 10/100Mbit/s residential connectivity over Ethernet and fibre, and granular Gigabit Ethernet connectivity for business customers.

The model provides a flexible Ethernet-based approach to expand customer bandwidth options for high-quality video, voice over IP and data services, says Cisco.

Enhancements include:

  • the new Catalyst 4500 Series of switches, which allows the deployment of converged networks in the metro environment with higher levels of performance, resilience, security and management;
  • cost-effective Layer 3 MPLS virtual private network (VPN) services on the Catalyst 3550 switch;
  • Cisco IOS enhancements for IP video security and scalability; and
  • inter-working capabilities to concurrently aggregate both ATM and Ethernet services for the Cisco 7600 Series router and Catalyst 6500 Series switch.

Ulm Photonics has introduced 10Gbit/s vertical cavity surface emitting lasers (VCSELs) for high-performance 850nm optical transmitters in 10Gbit/s Ethernet links, as defined by the IEEE 802.3ae standard.

The VCSEL chips can be packaged in a Schott TO-can or shipped as bare die for wire-bonding or flip-chip integration.

Available configurations include 1D and 2D arrays, solder bumps, top- and back-side emission and electrically isolated pixels on a 250µm pitch.

The 10Gbit/s VCSEL shows excellent lifetime in accelerated aging and 85/85 environments, it is claimed.

Lightscape Networks' next generation of its network management technology is aimed at enabling carriers to effectively manage networks from the metro access to metro core and regional layers.

With new and significantly enhanced features, eNM LightSoft offers a multi-dimensional approach to the management of multiple technology converged networks.

Features include a new graphical user interface (GUI), which introduces a multi-layer view to network management. This allows a complete converged view of the entire network including physical sites, SDH/SONET rings and sub-networks. This also supports the introduction of additional layers, such as ATM or Ethernet Layer 2.

The modular software architecture of eNM LightSoft follows the client-server model. Also, a powerful multi-configurator feature enables users to manage and work on the same network elements in parallel.

Optical Communication Products' Long Reach OC-48 small form factor (SFF) transceiver supports high-density metro applications. The module incorporates a 1550nm DFB laser source and a high-sensitivity APD detector to achieve an 80km reach without regeneration or amplification. The device is compliant with SONET OC-48 LR-2 and SDH STM-16 L-16.2 (80km) applications and also compatible with the SFF MSA specifications.

For connecting small company networks and service providers, Pandatel's S-Mux 155 multiplexer can transmit data from up to five applications simultaneously.

On the interface side, four E1/T1 interfaces and a 10/100BaseTX interface are available. The multiplexed signal on the line corresponds to a STM-1/OC-3c signal. The 155 enables point-to-point connections over one line or over SDH/SONET networks.

The web-based user interface makes it easy to operate. Modules for device and port testing are integrated, enabling remote troubleshooting.

There are five RJ45 connections on the interface side and an SC connecter on the line side. They are combined into one stream of data at 155Mbit/s (STM-1 or OC-3c standard) to use the entire Fast Ethernet bandwidth of 100Mbit/s. This can be transmitted up to 50km by the 1300nm single-mode laser. For mounting in 19in rack systems a frame can hold up to seven of the 50x140x230mm devices.

Fibercore Ltd has two new erbium-doped fibres for high-channel-count DWDM and metro networks.

Isogain provides gain flatness that exceeds the state of the art in high-channel-count DWDM, while Metrogain offers EDFA manufacturers a low-cost and higher-performance fibre in both 125µm and reduced-form-factor 80µm diameters.

Reliability and geometric precision exceed Telcordia requirements, while the 80µm Metrogain offers reduced susceptibility to static fatigue, even in the latest-generation small-form-factor components.

Optical Communication Products Inc has launched its OC-192 optical transponders. The module design incorporates a 1550nm EML source and is compatible with SONET/SDH OC-192/STM-64 LR-2 applications. It is compatible with the 300-pin MSA.

"By integrating EML technology into our Long Reach OC-192 transponder line, we feel that we have gained a cost advantage by eliminating the need to have a discrete external modulator in the design," said Andy Limtao, Product Line Manager. "We use an industry-leading APD receiver to provide a high performance and very reliable product."

In particular, the PTC-192 line is designed to be used in metro and enterprise applications for reaches of 80km and beyond.

More in Transmission