Product category:
Electrical and Electronic Testing
News Release from: Finisar Corp | Subject: Gigabit fiber optic solutions
Edited by the Manufacturingtalk Editorial
Team on 25 September 2003
300m Transmission on Legacy Multimode
Fiber
Finisar Corporation has announced that it has demonstrated a 10Gb/s XFP optical transceiver operating on 300 meters of legacy multimode fiber.
Finisar Corporation, a technology leader in Gigabit fiber optic solutions for high-speed data networks, announced today that it has demonstrated a 10Gb/s XFP optical transceiver operating on 300 meters of legacy multimode fiber to a major 10-Gigabit Ethernet network equipment manufacturer Finisar's new XFP optical module utilizes an uncooled 1310nm laser and Electronic Dispersion Compensation (EDC) technology to transmit 10Gb/s error-free over up to 300 meters of virtually any grade of legacy multimode fiber
This article was originally published on Manufacturingtalk on 18 Sep 2007 at 8.00am (UK)
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This includes the 160/500MHz•km grade 62.5/125um fiber that constitutes the vast majority of the current infrastructure in the Enterprise LAN environment and which needs to be supported with a cost-effective solution when upgrading to 10-Gigabit Ethernet.
Other 10Gb/s transceivers and transponders that use 850nm lasers can only transmit 26 meters on the most common legacy fiber.
In order for them to reach 300 meters, end-users need to deploy new high-bandwidth multimode fiber (2000MHz•km) at significant expense.
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Another solution called LX4 uses four separate lasers of different wavelengths to achieve 300 meters, which translates into higher power dissipation, higher costs and reduced reliability.
"We believe that EDC technology provides the most practical solution for transmitting 10Gb/s over 300 meters of legacy multimode fiber," said Lew Aronson, Chief Scientist at Finisar.
"By incorporating it into an XFP module, with its ultra-small size and low power dissipation, we are taking a very big step in enabling high-volume deployments of 10-Gigabit Ethernet in the Enterprise." Finisar has been shipping 10km versions of XFP transceivers for several months, and has already demonstrated a 40km DWDM XFP version at recent trade shows.
The XFP is an application-agnostic ultra-small 10Gb/s optical transceiver module standardized by the XFP MSA Group (www.xfpmsa.org), which currently has more than 75 member companies.
Its ultra-small footprint and extremely low power dissipation enables the highest board density 10Gb/s applications in the industry.
These factors, in addition to its protocol independence, provide the lowest overall system cost solution for OEMs.
XFP transceivers support digital diagnostics functions via a 2-pin serial bus.
They provide calibrated, real-time measurements of the laser bias current, transmitted optical power, received optical power, internal transceiver temperature and supply voltage.
This diagnostic functionality allows telecommunication and data communications companies to implement reliable performance monitoring of their optical links in a very accurate and cost-effective way.
Additionally, Finisar's hot-pluggable XFP transceivers include a "bail" latch release mechanism for easy insertion and removal into the standardized metallic cage.
This cage is press-fit on the host board and includes a new modular heat-sink design to facilitate heat management.
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