Bend-insensitive multimode fiber (BI-MMF) has been a frequent topic of discussion in the enterprise structured cabling industry. Several manufacturers have introduced fibers designed for tight-bend applications, and one has converted its entire 50 µm multimode production to BI-MMF.

The OM4 fiber is a 50 µm multimode fiber optimized for lasers, offering increased bandwidth. It is designed to improve the cost-effectiveness of vertical cavity surface emission (VCSEL) laser-enabled systems for current 1 and 10 Gb/s applications, as well as future 40 and 100 Gb/s systems.

A team of scientists led by John Badding, professor of chemistry at Pennsylvania State University (PSU), USA, has developed the first optical fiber with a zinc selenide core, a light yellow compound that can be used as a semiconductor.

Nexans announces cables based on an advanced “Micro-Bundle” design. This new technology allows for the production of small, lightweight cables that maintain excellent mechanical strength. The “Micro-Bundle” itself is an incredibly flexible little tube that contains a maximum of twelve fibers.

Optilan AG, through its supplier in Spain Daetwyler Iberica, offers complete, ready-to-install fiber optic solutions, patented under MASTERLINE®, to meet different needs in indoor and outdoor applications.

As explained in a previous article (CONECtrónica, issue 137, pages 23 and 24), ADSL and cable television networks will soon be unable to maintain the broadband speeds that users demand from internet services. In this article, I want to show in more detail why VDSL, and especially PON, are the ideal technologies for this task, providing the necessary speed for all planned high-speed internet services.

Citynet has delivered the first of its projects in Las Palmas de Gran Canaria: a 25 km ring that will be extended by another 10 km by the end of 2010. In this second phase, the new link will allow the University of Las Palmas de Gran Canaria to have fiber optic networks, something that is necessary to foster new teaching and learning cultures, as well as to optimize the productivity and quality of services.

The recently ratified IEEE 802.3ba standard specifies 40 Gbps and 100 Gbps Ethernet applications that can be deployed over fiber optic cabling and high-speed patch panels. Siemon complies with the recently ratified 802.3ba standard through a comprehensive product offering consisting of:

Daetwyler Ibérica acquires the exclusive representation of Optilan AG in Spain.

The Telecommunications and Information Technologies Centre (CTTI) of the Generalitat of Catalonia has implemented the Transmode TM Series with reconfigurable optical add/drop multiplexer technology (ROADM - Reconfigurable Optical Add Drop Multiplexer) that allows adding greater flexibility and capacity to its current network.

C3 , Cables and Components for Communications, SL, of the COFITEL Group, presents the Optral CDI-M range of extremely strong and lightweight tight-fitting cables for military tactical applications.

With the steady increase in energy consumption over the past ten years, one of the main challenges facing data center owners today is how to reduce that consumption. To provide guidance on this, the European Commission's Joint Research Centre published the "European Code of Conduct on Energy Efficiency in Data Centers" in October 2008.

Corning Incorporated has announced the commercialization of ultra-low loss, highly efficient underwater optical fiber that meets the needs of next-generation, high-speed underwater data networks.

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