Narda Unveils DQPSK Modulator Driver
for 40 and 100 Gb/s Lightwave Systems
Outlines roadmap for complete family of modulator drivers for next-generation networks
NY – November 11, 2009 - Narda, an L-3 Communications (NYSE: LLL) company, today introduced the
Model FO-MDA-20-25DD-1, a dual-channel DQPSK modulator driver for 40-Gb/s and 100-Gb/s optical transponder
applications that has been tested at data rates as high as 113 Gb/s, demonstrating excellent performance even at
the highest data rates.
The FO-MDA-20-25DD-1 is designed to interface with a Sierra Monolithics SMI 4025
DQPSK multiplexer/clock multiplier unit on the input and an Avanex Mach-Zehnder lithium-niobate MZ DQPSK modulator
at its output. However, other models are available with a different pitch of its output connectors so the unit can
also be specified for other modulators, including those from Fujitsu. It integrates a separate channel for I and Q
signals within its 36 x 28 x 8 mm package and uses GPPO connectors.
Narda is a member of the 100G Optical Networking Consortium at Georgia Institute of Technology, which allowed
comprehensive measurements to be made in both simulated and real system environments. The FO-MDA-20-25DD-1 has a
maximum data rate of 35 Gb/s, 30 dB of gain per channel, and output of more than 8 Vpp. It is based on a new,
cost-effective MMIC chip set developed by Narda specifically for DPSK/DQPSK applications. The current driver is
housed in a metal enclosure and later versions will include surface-mountable packages tailored for high-volume
production and fabricated using a low-cost PTFE microwave laminate as the packaging material.
Future configurations tailored for 100-Gb/s operation include a module that will integrate all four data
drivers for PD-DQPSK configuration into a single surface-mount package and can optionally include a carver clock
driver as well.
The FO-MDA-20-25DD-1 joins Narda’s growing family of products for lightwave systems,
including, clock oscillators, phase-locked oscillators, lithium niobate and electro-absorptive modulator driver
amplifiers, and pulse carver drivers.
Engineering samples of the
FO-MDA-20-25DD-1 are expected to available in the first quarter of 2010.
Phone: (631) 231-1700
About Narda Microwave-East
Narda Microwave-East is a division of L-3 Communications Company, a
$14 billion electronics manufacturer
serving the military and commercial communication markets. For more than 50 years, Narda has developed and
manufactured state-of-the-art RF and microwave components, microwave integrated circuits (MICs), multi-function
assemblies, and subsystems in the frequency range from DC to 60 GHz for both commercial and military applications.
Narda is also the world leader in RF safety products, and a leading manufacturer of fiber optic modulator drivers
and oscillators for OC-192 and OC-768 applications. Narda maintains the world's largest inventory of RF and
microwave components, many available from stock.
About L-3 Communications
Headquartered in New York City, L-3 Communications is a leading provider of Intelligence, Surveillance and
Reconnaissance (ISR) systems, secure communications systems, aircraft modernization, training, and government
services. The company is a leading merchant supplier of a broad array of high technology products, including
guidance and navigation, sensors, scanners, fuzes, data links, propulsion systems, simulators, avionics, electro
optics, satellite communications, electrical power equipment, encryption, intelligence systems, antennas and
microwave components. L-3 also supports a variety of Homeland Security initiatives with products and services.
Its customers include the Department of Defense, Department of Homeland Security, selected U.S. Government
intelligence agencies and aerospace prime contractors.
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