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June 18, 2002 (Franklin,
MA)….Advanced Interconnect (AI) introduces a new technology that
drastically reduces the mode and wavelength dependence typically seen in
currently available multimode attenuators.
The NDF (neutral density filter) Attenuator Series, a small form
factor mode independent multimode loopback attenuator, is designed around
AI’s proprietary attenuation technology.
“While 0dB loopbacks
and standard attenuation values are available, Advanced Interconnect’s
attenuation technology allows for an infinite number of custom values
other than standard 5dB, 10dB, 15dB 20dB,” states Jeff Bonja, Business
Development Manager for AI. The
NDF Attenuator addresses the
significant variations in laser-source launch conditions between
Vertical-Cavity Surface-Emitting Lasers (VCSEL) transceiver manufacturers.
The variations in these conditions excite random and unstable modes that
affect the attenuation performance of typical short length loopback
attenuators. Most transceivers used in high data rate multimode
systems have 850nm VCSEL sources. Although
VCSEL devices are cost effective, it is very difficult to control certain
beam output characteristics, such as beam size, shape and power
distribution.
This results in the inability to attain mode stability in the their
small footprint. “The
NDF attenuator resolves this issue through its novel mode independent
attenuation technology,” Bonja adds. In addition to its mode
independent attenuation technology, AI has redesigned the NDF Attenuator
housing. To ensure long-life
under cyclic harsh environmental testing conditions, the new design
reduces the footprint of the attenuator and improves the reliability for
both standard use and for environmental testing.
The NDF Attenuator is undergoing Telcordia GR-910 evaluation.
AI is a wholly owned
subsidiary of Woodhead Industries. Woodhead
Industries, Inc. and its subsidiaries develop, manufacture and market
electronic and optical connectivity products, serving the industrial,
medical, telecommunications and data communications markets.
Through Advanced Interconnect, Woodhead provides quality optical
and electrical connectivity solutions and contract manufacturing services
for its customers in the data and telecommunications as well as medical
marketplaces. Woodhead’s
product lines, including six globally recognized industry-leading brands:
applicom®, Brad Harrison®, mPm™, NetAlert™, RJ-Lnxx® and
SST™ make Woodhead a premier supplier of connectivity solutions
and manufacturing services worldwide.
More information about AI is available at the websites: www.ai-global.com
or Woodhead at: www.Woodhead.com. For additional information on AI and its revolutionary loopback attenuator series, contact AI at (800) 989-3627 or email: info@ai-global.com.
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