A groat deal of work has been done on error-correcting codes for the binary channel. In this paper we consider codes for a channel that can transmit more than two levels.
This paper is concerned with the problem of transmitting binary signals over a noisy channel.
Error-free unrepeatered transmission of 100 channels at 10 Gbit/s is demonstrated over 350 km.
We have used a packaged high-speed Ti:LiNbO(3) directional coupler switch to externally modulate a cw-operated coupled- cleaved-cavity laser oscillating at 1.3micron wavelength.
Error-free operation of a 100GHz-spaced large scale (16 nodes cascaded over a total distance of 600km) optical network system comprising 15 10Gbit/s/channel channels has been reported.
With optimization of detector threshold and a reservoir channel, error-free transmission of 32x2.5 Gb/s DWDM channels is demonstrated over 130 km using semiconductor optical amplifiers.
By optimising the detector threshold and using an optical reservoir channel, error-free transmission of 32×2.5 Gbit/s DWDM channels has been obtained over 125 km of AllWaveTM fibre using semiconduc
Error-free transmission over 50 km single mode fiber of 8 WDM ITU channels with 100 GHz channel spacing is demonstrated at 10 Gbit/s by using comb generation in a quantum dash mode-locked laser.
What is the sensitivity of a direct-detection lightwave receiver employing an optical preamp? Published calculations for on- off keyed signals differ by a factor of four.
Consider many P C M messages occupying adjacent frequency bands in the same transmission medium, as, for example, in the proposed long distance waveguide communication system.1 At some point the me
