+44 (0)24 7671 8970
More publications     •     Advertise with us     •     Contact us
 
News Article

Lucent Technologies announces ndustry's first tunable transmitter module for high-speed, extended reach, optical transmission systems

September 27, 1999

NICE, FRANCE - Lucent Technologies (NYSE: LU) Microelectronics Group, the world leader in communications semiconductors, today announced the fiber-optic industry s first field-deployable wavelength-stabilized tunable transmitter module for dense wavelength-division multiplexing (DWDM) systems. Based on electroabsorptive modulated laser (EML) technology pioneered at Bell Labs, the new C488 transmitter is ideal for extended-reach applications ranging from 200 to 640 kilometers. Operating at 2.5 gigabits per second (gbps), the module is the first to combine functions such as multiple channel selection, wavelength locking, output power adjustment and remote monitoring and programming. The channel-selection feature enables network equipment manufacturers and service providers to tune in one of four adjacent, 50-gigahertz (GHz) channels, minimizing the need for a separate laser for each ITU-T wavelength. In addition, the device integrates a stabilizing function within the transmitter. By eliminating external locking devices, the new transmitter saves costs and board space while meeting ITU-T stability requirements. "This wavelength-selectable transmitter clearly positions Lucent as a world leader in tunable laser products," said Timothy Hays, product marketing manager with Lucent s Microelectronics Group. "We are answering the call of system designers who require higher levels of module integration and functionality while at the same time reducing cost by streamlined manufacturing and test, reduced design intervals, and less inventory management." "This is the first mainstream tunable product to be available in the industry," said Tom Hausken, optical communications senior analyst with Strategies Unlimited, a market research firm in Mountain View, Calif. "Lucent s new tunable transmitter marks a milestone much anticipated by systems manufacturers. It promises to ease inventory management as well as introduce new system architectures, reducing the number of primary and spare source components needed in transmission systems." The new transmitter is compatible with other products in Lucent s C-48 family of cooled laser transmitters, allowing systems designers to easily substitute modules to satisfy varying transmission requirements for applications from 80 to 640 kilometers. This innovative module is also forward compatible with upcoming 2.5-gbps transmitters that will offer wideband tuning of at least eight channels as well as 10-gbps applications. Complete with integrated laser driver, the C488 operates with power supplies of 5.0 and 3.3 volts and includes analog monitors and digital alarms. "Bell Labs is continuing its work on EML technology to extend the tuning range of optical transmitters even further, which will give network designers more flexibility and system cost reductions," said Leonard Ketelsen, senior manager in Bell Labs photonic circuits research department. Lucent is exhibiting its complete line of optoelectronic components here at the 25th European Conference on Optical Communication (ECOC 99), September 26-30. Samples of the C488 will be available by the end of the year, with full-production scheduled for the first quarter of 2000.

Lucent Technologies designs, builds and delivers a wide range of public and private networks, communications systems and software, data networking systems, business telephone systems and microelectronics components. Bell Laboratories is the research and development arm for the company. For more information on Lucent Technologies, headquartered in Murray Hill, N.J., USA, visit its Web site at www.lucent.com. Lucent s Microelectronics Group designs and manufactures integrated circuits and optoelectronic components for the computer and communications industries. More information about the Microelectronics Group is available from its Web site at www.lucent.com/micro.


Web site: http://www.lucent.com/micro
×
Search the news archive

To close this popup you can press escape or click the close icon.
×
Logo
×
Register - Step 1

You may choose to subscribe to the Compound Semiconductor Magazine, the Compound Semiconductor Newsletter, or both. You may also request additional information if required, before submitting your application.


Please subscribe me to:

 

You chose the industry type of "Other"

Please enter the industry that you work in:
Please enter the industry that you work in: