View all newsletters
Receive our newsletter - data, insights and analysis delivered to you
  1. Technology
August 10, 1988

AT&T TO USE 1.5 MICRON WAVELENGTH SEMICONDUCTOR LASER

By CBR Staff Writer

AT&T Co is to use a 1.5 micron wavelength semiconductor laser in the the SL 420 Cable System optical under-sea transmission system, currently under construction in Taiwan: Nippon Telegraph & Telephone is already using 1.5 micron semiconductor lasers in its optical transmission networks but most current systems use 1.3 micron lasers with relays every 30 miles and the switch to 1.5 microns means that repeaters can be 120 miles apart.

Websites in our network
NEWSLETTER Sign up Tick the boxes of the newsletters you would like to receive. Tech Monitor's research, insight and analysis examines the frontiers of digital transformation to help tech leaders navigate the future. Our Changelog newsletter delivers our best work to your inbox every week.
I consent to New Statesman Media Group collecting my details provided via this form in accordance with the Privacy Policy
SUBSCRIBED
THANK YOU