Transport Featured Articles

2012 optical industry trends

If the 2011 calendar year could be described in three words, they would be “explosive bandwidth growth.” Both wired and wireless networks were stretched as consumers continued to adopt...

Optical communications trends for 2011

The Internet and mobile devices continue to grow as key utilities in people’s lives, presenting the optical communications industry with new opportunities and challenges in 2011 to ensure...

Will most systems vendors go it alone for 100G designs?

According to the July/August 2010 Lightwave magazine article “Is 100G a DIY proposition?,” systems vendors traditionally have relied on MSA-based modules to help reduce costs. Now,...

Dispersion compensation technology advances

By Adel Asseh, PhD Overview Combining the power of fiber Bragg gratings with the simplicity of an ordinary patch cord results in a space-saving, cost-effective approach to dispersion...

System vendors take the FTTX test

by Meghan Fuller What happens to a network when 35 million people are watching the same TV program, and that program ends and they all start changing channels simultaneously? And what if those 35...

Engineering DPSK spectral properties enables superior performance through multiple cascaded optical wavelength-selective switches

Wavelength-selective switches (WSS) are crucial elements in a 40G network, but degrade signal quality. Measurements show crosstalk can increase the BER by an order of magnitude, which is equivalent...

Photonic integration diverges down two paths

by Stephen Hardy The need to lower cost, power consumption, and package size has led to significant advancements in photonic integration. Infinera (www.infinera.com) has made the biggest splash in...

Is DP-QPSK the endgame for 100 Gbits/sec?

by Meghan Fuller Hanna The Optical Internetworking Forum (www.oiforum.com) this summer agreed to begin work on a project framework for 100–Gbit/sec long–haul transmission, focusing...

Several factors shape the new optics landscape

by Sinclair Vass It is no surprise to the optical communications industry that bandwidth demand continues to soar and that we have only just begun to tackle the challenge of how to expand and...

The next future of DWDM: 100 Gbps

by Niall Robinson OVERVIEW With 40 Gbps DWDM now in deployment, carrier and technology developer attention has turned to 100 Gbps. Three key factors will determine the timing of 100-Gbps DWDM...