Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

Speed Demons: Is 'Faster' Better and Cheaper?

Photonics Spectra
Feb 1999
Stephanie A. Weiss, Executive Editor

If you need to produce X amount of work, you have two options: Hire a roomful of average workers to do pieces of the work, or hire a few fast, efficient people to do the same work. The fast workers will, of course, demand higher salaries; but the many average workers will require more training, more benefits, etc. The ultimate choice for a growing business is "Which method accomplishes the goal for the least expense?"
Most telecommunications network providers in the 1990s have chosen the fiber optic equivalent of the roomful of average workers: dense wavelength division multiplexing of 40 or more channels of information, each transmitting at 2.5 Gb/s. But many photonics researchers and some network system providers believe that the 21st century solution lies in the telecom equivalent of a few fast, efficient workers: eight or 16 channels of information, each transmitting at 10 or even 40 Gb/s. This combination of wavelength division multiplexing (WDM) with time division multiplexing (TDM) offers an interesting technical challenge for network system designers and component providers. The lasers and detectors for reliable 40-Gb/s transmitters and receivers are still several years from commercialization, but 10-Gb/s devices are available today.
Combining technologies also adds several twists to the economic equations of telecommunications networks, and the ease of untangling those twists will determine their ultimate viability in the open market.

CommunicationsFeature ArticlesFeaturesSensors & Detectors

Terms & Conditions Privacy Policy About Us Contact Us
back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2018 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,

Photonics Media, Laurin Publishing
x Subscribe to Photonics Spectra magazine - FREE!
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.