Monday, December 22, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
North Korean Internet Otage Fuels Speculation
Semiconductor Market Set for Strongest Growth in Four Years in 2014
New Asus Dual-camera Zenfone Coming At CES
Samsung Introduces SE790C Curved Monitor
Chinese Motion-sensing VR Glasses Coming On Kickstarter
Kodak Returns To CES With Consumer Product Line
North Korea Suggests Joint Inverstigation With U.S. Over Sony Hacking
T-Mobile to Pay $90 Million To Settle Case With FCC
Active Discussions
Digital Audio Extraction and Plextools
Will there be any trade in scheme for the coming PSP Go?
Hello, Glad to be Aboard!!!
Best optical drive for ripping CD's? My LG 4163B is mediocre.
Hi All!
cdrw trouble
CDR for car Sat Nav
DVD/DL for Optiarc 7191S at 8X
 Home > News > General Computing > Hitachi...
Last 7 Days News : SU MO TU WE TH FR SA All News

Tuesday, March 24, 2009
Hitachi, Opnext Developed Receiver For 100Gbit/s Ethernet


Hitachi, Ltd. and Opnext, Inc. today announced the development of a highly sensitive high-speed 25Gbit/s receiver for the 100Gbit/s Ethernet standard being discussed for next-generation high-speed optical networks.

Focusing on practicality and cost-effectiveness, the receiver module uses a coaxial package and achieves both high-speed and high-responsitivity by using a back-illuminated PD (photodiode) with a highly reflective reflector.

Working together, Hitachi and Opnext displayed a100Gbit/s 10km SMF (single mode fiber) CFP MSA transceiver using the newly developed receiver in combination with a 1.3?m-range 4-channel 25Gbit/s EA/DFB (electro-absorption modulator integrated distribution feedback) laser developed based on Hitachi's and Opnext's advanced technology as the light source. This transceiver achieves the sensitivity requirements of IEEE P802.3ba 100GBASE-LR4 standard being discussed. The receiver developed is expected to become a key component in this international standard and support next generation high speed interface technology.

"The first step to achieving a 1.3?m-range 25Gbit/s WDM optical transceiver was the announcement of a 25Gbit/s EA/DFB laser suitable for the 100Gbit/s Ethernet, and verification of 12km optical transmission, which Hitachi and Opnext introduced at OFC/NFOEC 2008. This year, Hitachi and Opnext announced the development of a cost-effective 25Gbit/s optical receiver for the 100Gbit/s Ethernet, overcoming several technical issues,? said Dr. Masahiro Aoki, department manager, Nanoelectronics Research Department, Central Research Laboratory, Hitachi, Ltd.

A study by the IEEE High Speed Study Group (HSSG) showed that by the year 2010, the bandwidth required in core networking will be best satisfied by 100Gbit/s interfaces. In preparation, the IEEE 802.3ba taskforce is currently discussing specifications for the 100Gbit/s Ethernet, for which 1.3?m-range 4-channel 25Gbit/s WDM (wavelength division multiplexing) 10km SMF transmission has been decided by the task force as the most attractive technology. This represents a ten-fold increase in speed from the current 10Gbit/s Ethernet standard.

Verification tests using an experimental transceiver, based on the newly developed receiver in combination with an EA/DBF laser previously developed, not only satisfied signal levels required for 100Gbit/s Ethernet but also confirmed 25Gbit/s 10km SMF transmission.

This technology will be presented at OFC/NFOEC 2009 to be held from March 22-26, 2009 in San Diego, California, U.S.A.


Previous
Next
OCZ Introduces Two New Gaming Mice        All News        Netflix Intregrates With Facebook Connect
Google Changes Search Results     General Computing News      Netflix Intregrates With Facebook Connect

Get RSS feed Easy Print E-Mail this Message

Related News
Hitachi Wearable Device Monitors Brain Functions
Hitachi Technology Stores Digital Data In 100 Recording Layers, Data Can be Stored For 300 million Years
Hitachi HDDs Have The Lowest Failure Rate: report
Hitachi Combines SSD Tier And SSD Cache Methods in Tiered Storage Systems
Hitachi Brings New Flash, Unified Storage and Converged Solutions
HGST Launches the 1.5TB Mobile Hard Drive
Maxell Introduces First iVDR, BD, HDD Combo Recorder
Hitachi Maxell To Take Over Hitachi's LCD projector Business
Hitachi Says Hybrid Storage Pools Are Superior Than HDD, SSD Configurations
HGST Launches 1.2TB, 10K RPM Hard Drive
HGST Releases 1TB, 7200 2.5-inch Mobile Hard Drive
Hitachi To Stop Making Semiconductors by 2014

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .