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June 9th, 2000

Corning PurePathT Optical Networking Device Incorporated Into Marconi's Next Generation WDM Product

CORNING, N.Y. - Corning Incorporated (NYSE: GLW) announced today that Marconi Communications, a key supplier to 80% of the world's telecommunications organizations, will incorporate Corning's PurePathT Dynamic Spectral Equalizer into the design of Marconi's next generation Wavelength Division Multiplexing (WDM) product, part of its SMARTPHOTONIX product line.

Marconi's SMARTPHOTONIX is an integrated family of products that supports optical transmission in long-haul and metropolitan networks. It includes the PMA-32, a 32-40 channel WDM system targeted at regional and interoffice segments of communications networks. "Corning supplies one of the key components for the PMA-32's proprietary optical add/drop multiplexer. It provides the flexibility and reach required by today's service providers," said Dave Lewis, Executive Vice President and General Manager Optical Networks, Marconi Communications.

Corning's PurePath Dynamic Spectral Equalizer can be used to individually access wavelength channels to equalize channel power, to drop and continue, or to block channels completely. Based on liquid crystal technology, the 1x1 device can individually attenuate 40 channels at 100 GHz spacing, and is extendable to 80 channels at 50 GHz. In March, the Technical Committee of the Optical Fiber Communications conference recognized the PurePath Dynamic Spectral Equalizer as one of the ten best new products of the meeting.

Corning has shipped samples to Marconi for integration into their new system. "Marconi's product has unique optical requirements. Meeting these requirements confirms the value that Corning is offering the optical networking market," said John Bayne, product line manager for Corning Optical Networking Devices.

In September 1999, Corning, a world leader in optical technology, demonstrated and launched its family of PurePath T optical networking devices designed to extend the reach of long-haul and metro DWDM networks by improving signal quality. The products permit more network functions to be performed in the optical layer, while minimizing the spectral impairments, which typically limit the reach of optical networks.

Additional information on rest of Corning's extensive line of photonic products is available on Corning's Photonic Technologies Division website at www.corningphotonics.com.

Established in 1851, Corning Incorporated (www.corning.com) creates leading-edge technologies for the fastest-growing markets of the world's economy. Corning 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. Corning's revenues in 1999 were $4.3 billion.

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June 2nd, 2000

CORNING, N.Y. - Corning Incorporated, (NYSE: GLW), one of the world's largest supplier of optical amplifiers, today introduced a Raman amplifier that dramatically extends the length and improves the performance of broadband communication networks.

The PureGain 5000R Raman Amplifier, that provides an optical pump power of 500 mw, gives network operators a practical, readily available approach to adding Raman gain to erbium-doped fiber amplifier (EDFA) systems. Corning will display the PureGain 5000R June 4-8 at SUPERCOMM 2000 in Atlanta at booth # 4327.

"We are using our systems knowledge, leadership in optical amplification and manufacturing prowess to make Raman amplification practical for today's gain flattened, wideband DWDM systems," said George Wildeman, PureGain product line manager. "Network operators can integrate the PureGain 5000R with EDFAs to extend the length of broadband DWDM systems over several thousand kilometers."

The PureGain 5000R provides stimulated Raman gain in the transmission fiber, a technique that can be used to lengthen system reach, lengthen spans between EDFAs, increase data rates and provide tighter channel spacings.

Extending the reach of the network to longer distances reduces the need to regenerate the signal from optical to electrical, and back to optical, dramatically reducing overall system cost. PureGain 5000R can allow lower signal launch powers, which reduces nonlinear effects, signal distortion and cross-talk between channels.

"These applications not only improve overall system performance but help drive down the cost of communication networks," Wildeman said.

The PureGain 5000R provides amplification within the erbium C band (1528 nm - 1566 nm) and is compatible with most EDFAs manufactured today. The 10 db Raman gain, 500 mw device is gain-flattened, and engineered to operate within industry standard Class IIIb safety standards, making it ideal for DWDM systems. Corning will begin manufacturing the PureGain 5000R during third quarter 2000.

Detailed information about products and technologies being introduced will be available at Supercomm Booth 4327, or by visiting www.corningfiber.com and www.corningphotonics.com.

Established in 1851, Corning Incorporated (www.corning.com) creates leading-edge technologies for the fastest-growing markets of the world's economy. Corning 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. Corning's revenues in 1999 were $4.7 billion. More information on Corning optical fiber is available at www.corningfiber.com .

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June 1st, 2000



MPS releases FP-1000 Interferometric Microscope

The Model FP-1000 is a high performance interferometric microscope that is designed to inspect the geometry of optical connector endfaces. The spherical nature of the endface geometry is critical in determining the overall insertion loss and return loss performance of the optical connector. In order to ensure optimum performance the connector endface geometry must be in compliance with established Bellcore Specifications for radius of curvature, apex offset, and fiber undercut or protrusion.

The Model FP - 1000 allows the user to measure the endface geometric parameters by forming an optical fringe pattern which is created when light is illuminated onto the contact area between the connector endface and an optical reference plane (or flat). The fringe pattern is a result of the optical interaction of the light with the surface contact area. Specifically, the fringes are created by constructive and destructive interference when the light reflects back and forth between the endface and the reference flat.

Download the FP-1000 brochure here:
FP-1000.pdf