Alcatel-Lucent announces new integrated optoelectronics sources andreceiver at ECOC 2007.

M2 PRESSWIRE-19 September 2007-Alcatel-Lucent: Alcatel-Lucent announces new integrated optoelectronics sources andreceiver at ECOC 2007(C)1994-2007 M2 COMMUNICATIONS LTD

RDATE:19092007

Berlin -- Alcatel-Lucent (Euronext Paris and NYSE: ALU) today announced new breakthroughs in optical networks with three post-deadline papers accepted at the European Conference and Exhibition on Optical Communication (ECOC) in Berlin. Alcatel-Lucent Bell Labs and R&I researchers successfully demonstrated new advances in optical transmission with novel integrated optoelectronics sources and receiver.

On the receiver side, Alcatel-Lucent researchers in Bell Labs' Crawford Hill, NJ facility demonstrated a novel compact optoelectronic receiver for differential quadrature phase-shift keying (DQPSK) reception that may ultimately contribute to reducing the cost and size of high-data-rate advanced-modulation-format optical transceivers. In contrast to the current generation of receiver technologies where multiple components must be connected together with precise path lengths in order to support advanced modulations formats, this technology integrates an optical demodulator and four photodiodes on a single 3.2 mm x 0.8 mm InP (Indium Phosphide)-based chip - producing a single integrated optoelectronic device that has a footprint that is more than two orders of magnitude smaller than today's typical DQPSK receivers.

On the emitter side, Alcatel-Lucent's researchers from Alcatel-Thales III-V lab, France, have demonstrated the first integrated version of a laser and an electro-absorption modulator (EML) with a record bandwidth of 60 GHz. This result is a major step toward the next generation 100Gb/s source for Very Short Reach (VSR) transmission. In addition, this is also a potential low cost approach since we have also demonstrated its high operating temperature capability (43 Gb/s up to 70degC, IPRM'07) Finally, Alcatel-Lucent's researchers from Alcatel-Thales III-V lab, France, have realized a 42 GHz mode-locked laser source with a record wavelength tunability of 16nm, keeping constant both the output power and the narrow pulse width of 2 picoseconds. These performances have been reached thanks to a new active layer made of Quantum Dots. In addition, the optical pulses are Fourier-transform limited, which is quite suitable for propagation in the fiber : these features make such a laser very attractive for very high bit rate tunable optical transmission.

For more information about ECOC: external link http://www.ecocexhibition.comAbout Alcatel-Lucent

Alcatel-Lucent (Euronext Paris and NYSE: ALU) provides solutions that enable service providers, enterprises and governments worldwide, to deliver voice, data and video communication services to end-users. As a leader in fixed, mobile and converged broadband networking, IP technologies, applications, and services, Alcatel-Lucent offers the end-to-end solutions that enable compelling communications services for people at home, at work and on the move. With operations in more than 130 countries, Alcatel-Lucent is a local partner with global reach. The company has the most experienced global services team in the industry, and one of the largest research, technology and innovation organizations in the telecommunications industry. Alcatel-Lucent achieved adjusted proforma revenues of Euro 18.3 billion in 2006 and is incorporated in France, with executive offices located in Paris. [All figures exclude impact of activities transferred to Thales]. For more information, visit Alcatel-Lucent on the Internet: http://www.alcatel-lucent.com

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