Velocium unveils new GaAs- and InP-based components for optical communications
Serving as an output stage amplifier producing a high-voltage, high-speed signal, the 0.1 micron GaAs pHEMT-based AUH232 delivers an 8-volt peak-to-peak single-ended output voltage at 43 Gb/s when driven with an input of less than 3 V peak-to-peak. The AUH232 s robust performance provides module and board-level margin over temperature, operating conditions and life with a 1.25 W maximum power dissipation. Providing up to 50 GHz of bandwidth, the AUH232 features a rise time estimated at less than 8 ps as well as variable gain and eye cross-point control capability allowing optimization of the output to the optical modulator.
"The fourfold jump in bandwidth required for 40 Gb/s fiber optic transmission systems compared to 10 Gbit/s, places severe performance demands on semiconductor process technology," said Frank Kropschot, director of business development, Velocium. "The AUH232 not only exceeds 40Gbit/s performance requirements with margin, but it is fabricated using Velocium s space-proven advanced GaAs process and high-volume foundry."
The AUH232 is available now for sampling either fixtured or as bare die.
NRZ to RZ converter
Velocium, has also announced the development of an InP-based non-return-to-zero (NRZ) to return-to-zero (RZ) converter. Designed for use in 10 Gbit/s fiber-optic transmission systems, the UCJ106 is the first in a family of electronic RZ solutions specifically targeting the OC-192/STM64 ultra-long haul, long-haul and metro-fiber systems and provides a more cost-effective solution for RZ format transmission than conventional optical approaches.
The UCJ106 electronically converts NRZ signals to an RZ modulation format for input into a modulator driver. The UCJ106 is capable of running up to 12.7 Gbit/s providing overhead room for the most robust forward error correction algorithms. With power consumption under 1 W, the UCJ106 also provides a voltage-controlled pulse-width adjustment capability as well as differential inputs and outputs.
"By utilizing TRW s advanced InP process for our UCJ106 NRZ-to-RZ converter, we can meet the higher bandwidth performance required for RZ modulation at lower power compared to alternative solutions," said Kropschot. "From a system perspective, the UCJ106 eliminates the need for an additional optical modulator, therefore reducing overall system cost and complexity."
The UCJ106 is now available for sampling, either fixtured or as a bare die. Production quantities can be delivered in a surface mount package or as bare die.
E-mail: jim.schlaffer@velocium.com
Web site: http://www.velocium.com
