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.

Source: CDRINFO

Tags: Ethernet, Hitachi

Comments
Add comment

Your name:
Sign in with:
or
Your comment:


Enter code:

E-mail (not required)
E-mail will not be disclosed to the third party


Last news

 
The smartphone could come with a 4,200mAh battery
 
New iTunes backup password verification system exists in parallel to the much stronger, older iOS 9 system
 
 
ARM's new Bifrost architecture, which focuses on high-end 4K and VR experiences
 
Apple’s 2017 iPhone could employ the use of Samsung’s Flexible OLED Atomic Layer Deposition Technology
 
Redmond not willing to pay so much for Twitter
 
Foxconn and Pegatron will both be behind the production
 
Samsung Galaxy TabPro S - a tablet with the Windows-keyboard
The first Windows-tablet with the 12-inch display Super AMOLED
June 7, 2016 /
Keyboards for iOS
Ten iOS keyboards review
July 18, 2015 /
Samsung E1200 Mobile Phone Review
A cheap phone with a good screen
March 8, 2015 / 4
Creative Sound Blaster Z sound card review
Good sound for those who are not satisfied with the onboard solution
September 25, 2014 / 2
Samsung Galaxy Gear: Smartwatch at High Price
The first smartwatch from Samsung - almost a smartphone with a small body
December 19, 2013 /
HP Slate 7 is a 7-inch Android 4 Tablet PC with good sound
A cost-effective, 7-inch tablet PC from a renowned manufacturer
October 25, 2013 / 4
 
 

News Archive

 
 
SuMoTuWeThFrSa
    123
45678910
11121314151617
18192021222324
252627282930 




Poll

Do you like Windows 10?
or leave your own version in comments (32)