ALLENTOWN, Pa., July 22 -- Agere Systems said it has been chosen as a major supplier of Raman pump modules for Lucent Technologies' LambdaXtreme) Transport dense wavelength division multiplexed (DWDM) system. Raman is an optical amplification technique, originally developed at Lucent's Bell Labs, that can boost the strength of very high-speed communications signals traveling through optical fiber more effectively than other amplification techniques, thereby allowing longer distances between amplifying devices. "Agere's modules will be an important component in the Lucent LambdaXtreme Transport system for enabling reliable transmissions at 10- and 40-gigabits-per-second," said Frank Galuppo, vice president, Optical Long Haul Solutions, Lucent Technologies.