Your take on Getting a SmartWatch?

View Results

Loading ... Loading ...
1 Star2 Stars3 Stars4 Stars5 Stars (Rate This)
Loading...Loading...

The first optical transmission has been demonstrated to pass at the speed of 1.15Tbps over 10,000 kilometers, thanks to NEC Corporation for their successful experiment. Optical superchannel technology has been used here in this experiment. NEC is a pioneer company in the field of optics for such a long time. This work was conducted by NEC Laboratories America, NEC’s research group in Princeton, New Jersey, USA. The officials expressed their encomiums on the success to set a new record for optical transmission.

For the first time in the history of communication, terabit/s channel has been generated using a single laser source that travelled such long distance. The success is now the precursor of the future high speed optical transmission. Superchannel made it possible to gain such speed. Four superchannels were transmitted together by wavelength division multiplexing (WDM) to achieve a total capacity of 4 Tb/s and a spectral efficiency of 3.6 b/s/Hz. Optical superchannels use special type of mudilation technology which incorporates the principles of orthogonal frequency division multiplexing (OFDM) which enables efficient bandwidth utilization, allowing higher spectral efficiency and higher data rate per laser through parallelization.

“This success is an example of NEC’s leadership in high capacity, long distance optical communication technologies, following its record achievements of 101.7 Tb/s per fiber for single core fiber transmission, the first terabit field trial with coexisting 100G, 450G and 1T signals on the same fiber, and the highest order QAM optical transmission of 1024QAM” said Dr. Yasuhiro Aoki, General Manager for NEC’s Submarine Network business.

According to NEC, the experiment was done using state-of-the-art hardware system which includes optical multi-tone generation, large-core/ultra low-loss fiber, intradyne digital coherent detection, and digital equalization at higher oversampling, along with well-established technologies such as EDFAs and DP-QPSK modulation.

Image Courtesy: Andrea Pacelli

Buy Cheapest Related Product From Amazon.com


Galaxy Smartphones Make Samsung’s Q4 2011 A Successful One

Toshiba Satellite L745-S4355 14.0-Inch Laptop
You can also press the left/right arrow key on your keyboard to go to previous/next post
  On January 28, 2012(2 years, 12 months ago.)

Recent Products

Buy Now | Compare  
Buy Now | Compare  
Buy Now | Compare  
Buy Now | Compare  
Compare  

What Do You Think?

Loading Disqus Comments ...
Loading Facebook Comments ...

Recent Search

Recent Tutorials

Here is the tutorial about how to setup Internet settings on Android device.
Today, We are going to show you a tutorial on how to disable Geotagging on Android.
here is our new Android tutorial on how to change default music player on android
The tutorial will help you to add multiple Google Account on your Android device.
Here we will show how you could Jailbreak Any iPhone Or iPad On Latest Firmware iOS 8.1.2. Keep reading.
In this tutorial I will show you how to transfer Google Contacts to iPhone Contacts list using iCloud services in just few steps.
Slower speed of downloading with torrent? Want to download torrent with idm? This article is for you. To get started see the article here.
Many users are already complaining and searching for the tips of how to capture the screenshot on LG G3. The tutorial will help to do that.
The tutorial will help how you can minimize the mobile data on your android device (Here we used LG G3 S for the tutorial)
The tutorial will help you to turn on battery Saver for LG G3 or G3 S both manually and automatically.
Close You Have To Login
User:
Pass:
Login With »Login With TwitterLogin With Facebook