Oki delivers 40 Gbit/s electroabsorption modulators
40 Gbps technology represents the next stage in the evolution of optical networks, and is driven by the need for an infrastructure that offers better performance, is less complex and more reliable. The OM5653C-30B and OM5753C-30B are designed specifically for OC-768 DWDM fiber applications, and are available at carrier rates of up to 40 Gbps, both in metro and long-haul network environments. By incorporating a new GaInAsP process into the design, Oki has delivered EA modulators that are more compact, have simpler drive design, lower operating voltages of 2.5 Vpp, operate over a data rate from 40 Gbps to 43 Gbps (with FEC), and have a good extinction ratio compared to Lithium Niobate (LN) modulators.
"Most observers were resigned to accepting the constraints of lithium niobate - including higher drive voltage, higher power dissipation, and (potential) packaging problems with its configuration as a Mach-Zehnder interferometer, said Richard Cunningham, Senior Analyst, Optical Networking for Cahners In-Stat/MDR. "By taking advantage of the electroabsorption effect in Indium Phosphide, Oki has produced a design that is more integratable and thus ultimately less expensive.
Features of the OM5653C-30B and OM5753C-30B include:
Low chirp: 30 GHz (-3 dBe)
High extinction ratio: > 17dB (CW, 0 to -4V)
Built-in DC bias circuit* (OM5753C - 30B)
Built-in thermoelectric cooler (TEC)
Low power consumption
Hermetic sealed package
"40 Gbps is definitely the wave of the future, and as one of the first companies to bring products to the market, we are clearly committed to responding to the demands of our customers who are designing and building optical networks that make the most of 40 Gbps technology," said Hideaki Horikawa, general manager of the research and development department for optical components at Oki. "40 Gbps optical networks raise the bar on component performance and reliability, and Oki has reacted in kind, leveraging its extensive experience in the space to deliver the OM5653C-30B and OM5753C-30B, the first of many 40 Gbps products from Oki."
Samples of Oki Semiconductor s OM5653C-30B and OM5753C-30B are available now.
Alain Dangerfield of Oki Semiconductor
Tel: +1-408-737-6347
E-mail: dangerfield@okisemi.com
Web site: http://www.okisemi.com
