Sumitomo Electric Industries Ltd. today announced that it has now shipped more than 10 million units of optical tra...
June 3, 2008
Sumitomo Electric Industries Ltd. today announced that it has now shipped more than 10 million units of optical transmitters/receivers/transceivers.
“Optical fiber was widely installed in buildings in early 1980s,” the company said in a release. “As a result, optical LANs became popular in the United States.” .
“At the beginning there were no standards for optical LANs, but the American National Standard Institute (ANSI) established Fiber Distributed Data Interface (FDDI), the world wide standard of 125Mb/s optical LAN with the maximum transmission distance of 2km over multi mode fiber.”
At that time, Sumitomo Electric was looking for business opportunities through its subsidiaries in the U.S. and embarked on standards activity to develop FDDI transceivers.
With critical development of lasers and detectors which could operate up to 125Mb/s, Sumitomo Electric established a development organization for 1.3um Light Emitting Diode (LED) and Photo Diode (PD) using in-house semiconductor wafers.
Sumitomo Electric started volume production of FDDI transceivers at its Yokohama Works in 1985. FDDI transceivers have been delivered to key FDDI LAN equipment suppliers all over the world.