By Topic

LED bandwidth of multimode fibers as a function of laser bandwidth and LED spectral characteristics

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
J. Refi ; AT&T Bell Laboratories, Norcross, GA, USA

Equations have been developed that relate the bandwidth performance of 62.5-μm core diameter ( NA = 0.29 ) graded-index multimode fiber when measured with LED sources to the LED's spectral characteristics and to the bandwidth measured with laser sources. Because the fiber's spectral loss characteristic filters the LED's power spectrum by shifting its center wavelength and narrowing its spectral width, these equations suggest that chromatic bandwidth scales more favorably than inverse linearly with length. The equations developed here have been used to predict hundreds of LED bandwidths measured independently both in the laboratory and in field installations. With typical agreement between these predictions and the measurements having an rms error of about 11 percent, these equations allow for system design and prediction of the bandwidth performance of LED-based multimode links.

Published in:

Journal of Lightwave Technology  (Volume:4 ,  Issue: 3 )