LONDON Bookham, Inc. has started shipping its full-band tunable transceiver to Ciena Corporation, who plans to use the 10Gbit/second pluggable module across its high-end switching and transmission systems.
The part, dubbed the TL8000 and introduced in February, integrates Telcordia qualified components, including the Bookham tunable transmitter with indium phosphide Mach Zehnder (InP MZ) modulator and DSDBR wideband tunable laser. It adds an Avalanche Photo Diode (APD) Receiver combined with cutting edge electronic dispersion compensation (EDC), which provides enhanced performance in low OSNR environments, and makes the product suitable for use across both long haul and metro links.
"The selection by Ciena is a real statement about the quality and maturity of our tunable pluggable technology," said Bookham VP Telecom Sales, Yves LeMaitre. "Our TL8000 makes the convergence of fullband tunability and faceplate pluggability a market reality, and achieves the ultimate component -- a 'universal' transceiver providing customers with new levels of flexibility, agility, performance and market differentiation."
The TL8000 does not adhere to any multisource agreements (MSAs), such as the XFP format. It is about twice the size of a regular XFP, but smaller than the older Xenpak specification.
The design was chosen by Bookham to pack its tunable transceiver into as small a package as possible. Getting down to an XFP size, and getting those modules up to production volumes, is expected to take anther 12 to 18 months.
Jim Zik, senior product marketing manager at Ciena, said the company opted for the Bookham device for 10Gbbit/s transmission "to provide our customers superior shelf density, pay-as-you-grow optical scalability and reduced hardware sparing."
He added the device offers ability to achieve flexible, multi-reach 10Gb/s integration with removable line-side optics for enhanced service ability at lower cost points, "as well as the ability to incorporate unforeseen future enhancements on a per-channel basis."
For now, Bookham will be the sole supplier of the tunable, pluggable modules to Ciena, but other companies, such as JDS Uniphase and Santur Corporation, are known to be working on similar parts.
Le Maitre suggests Bookham is now firmly established as the leader in tunable technology. "We are seeing significant growth in market share with our iTLA (integrable Tunable Laser Assembly), and both our TTA (Tunable Transmitter Assembly) and TSFF (Tunable Small Form Factor Transponder) were industry firsts."
The companieswill demonstrate the new device at the forthcoming ECOC Exhibition in Brussels, September 22-24, 2008.
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