Corning Incorporated, (NYSE:GLW) introduced a suite of advanced products for optical networks using Raman amplification. The expanded PureGain 5000R Raman amplifier product line now offers 750 mW and 1000 mW standard and custom Raman module designs, which enable 10 Gb/s and 40 Gb/s long and ultra-long haul architectures.
Corning's new Raman standard design platforms provide a selection of output powers and ripple performance, and are offered in both the conventional transmission band (C-band) and long band (L-band).
The company also announced it would design Raman amplifiers on site for customers visiting Corning's booth (#2638) at the Optical Fiber Communications Conference, March 17-21 in Anaheim, CA. The Raman Design Center will give customers direct access to Corning Raman engineers and interactive Raman modeling. The design center will feature a number of other Raman related products including Corning Lasertron's new high power 14xx nm fiber Bragg grating stabilized Raman pump lasers. Corning will hold a live demonstration of the new Optilock VR Raman pump lasers for both C and L band amplification operating up to 270mW.
In addition, Corning Micro-Optic Components will display a polarization multiplexer, which provides higher Raman pumping power by combining two orthogonally polarized beams from two pump lasers that have same wavelengths.
Corning Incorporated also introduced a suite of new optical compensation products and technologies that will be critical to the development of next generation 40 Gb/s network systems.
Widely used in 10 Gb/s systems, optical compensation products manage the shape and quality of light signals as they move through a network. The new products will enable 10 Gb/s and 40 Gb/s systems, which have dramatically lower tolerances for signal distortions caused by polarization mode dispersion (PMD) and chromatic dispersion.
Corning's expanded product line includes what the company claims to be the industry's first fiber-based PMD compensator. PMD arises from faster transmission speeds and more components being used in systems.
The new product enables carriers to upgrade their existing networks to data rates of 10 Gb/s and higher without having to lay new fiber. It will also enable longer reach and higher transmission speeds on next generation networks.
As networks move from 2.5Gb/s to 10 Gb/s to 40Gb/s and to longer and longer reach, both chromatic dispersion and PMD become increasingly significant impairments. In the case of chromatic dispersion, a four-fold increase in bit rate results in a sixteen-fold decrease in allowable accumulated dispersion. This allowable accumulated dispersion is about 16,000 ps/nm for 2.5 Gb/s, 1000 ps/nm for 10 Gb/s data rates and 60 ps/nm for 40 Gb/s speeds.
In addition to the PMD compensator, Corning is expanding its industry-leading family of chromatic dispersion compensation modules.
Corning OTI, formerly Pirelli Componenti Ottci, is a manufacturer of certain active components, specialty fibers and fiber gratings used in optical networks. The new products offer a variety of options for system designers:
* The PureForm DCM Module for LEAF optical fiber, a broadband fiber-based device that enables greater bandwidth and longer reach by optimizing its dispersion slope for LEAF fiber.
* The PureForm Adjustable DCM Module, a discreetly tunable fiber-based DCM module capable of delivering up to -150 ps/nm of dispersion.
* A gratings-based banded chromatic dispersion compensator. This narrowband device is designed to compensate for dispersion and dispersion slope over bandwidth up to 6 nm in terrestrial long haul and ultra-long-haul submarine links.
* A dynamic dispersion compensating module based on gratings technology. When fully developed, this state-of-the-art product will provide per channel dispersion compensation, a requirement for accommodating dispersion variations encountered in an optical communication link.
Corning will also demonstrate the PureForm Dynamic PMD Compensator at the Optical Fiber Communications Conference (OFC 2001).
About Corning:
Established in 1851, Corning Incorporated manufactures optical fiber, cable and photonic products for the telecommunications industry; and high-performance displays and components for television and other communications-related industries. The company also uses advanced materials to manufacture products for scientific, semiconductor and environmental markets. For more information, visit www.corning.com/photonictechnologies or www.corning.com.