Finisar optimizes 1x2 WSS for telecom network edge

SEPTEMBER 22, 2009 -- Finisar has introduced its new edge wavelength processor (EWP) 1x2 wavelength-selective switch (WSS) based on the company's liquid-crystal-on-silicon (LCoS) technology. The company says its new platform provides the same flexible programmability and reliability as its existing dynamic wavelength processors (DWP), but its small size and low power consumption target it for applications at the network edge.

"WSS ROADM applications comprise one of the fastest growing segments of the optical market," says Daryl Inniss, vice president and practice leader of communication components at Ovum. "The availability of Finisar's 1x2 WSS extends the powerful capabilities of its existing ROADM technology in a way that enables a whole new range of products for high volume, metro-access applications."

The design of the EWP supports both 40- and 100-Gbps transport. The optical unit is fully hermetic to ensure high reliability and stable, long-term operation. Advanced packaging techniques, including a high-temperature co-fired ceramic (HTCC) substrate, ensure a low-profile package height of 20 mm, allowing a ROADM design to be integrated onto a single-height card. The EWP supports both 50- and 100-GHz channel spacing in a single WSS with up to 100 channels at 50-GHz spacing and 50 channels at 100-GHz spacing. Both C- and L-band versions are available. Full per-channel attenuation control is supported over a range of 0 to 20 dB, along with other advanced features including drop-and-continue capability.

"With the addition of Finisar's EWP, we have further extended our product line to provide the broadest range of WSS options on the market today," says Andrew Kennedy, WSS product line manager at Finisar. "The combination of advanced optics, software, and packaging with a versatile LCoS optical engine provides a wavelength switching solution of unmatched performance and functionality to address advanced 40- and 100-Gbps applications."

The EWP 1x2 WSS for edge applications will be available in sample quantities in 4Q09. Finisar is displaying the EWP in Booth #640 at ECOC in Vienna, Sept. 21-23.


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