Title :
Theoretical studies on the performance of lossy photon channels
Author :
Kanaya, Fumio ; Nakagawa, Kenji
Author_Institution :
NTT Lab., Kanagawa, Japan
fDate :
1/1/1989 12:00:00 AM
Abstract :
The effect of channel losses on the capacity of noiseless optical communication systems utilizing the number state is studied. Based on these findings, the photon efficiency of these systems is evaluated in the presence of losses. Then, by comparing the photon efficiency of the number-state pulse-position modulation (PPM) and the coherent-state PPM under certain realistic conditions, it is found that the former is always superior to the latter from the perspective of photon efficiency regardless of losses
Keywords :
channel capacity; optical communication; optical losses; pulse position modulation; channel capacity; channel losses; coherent-state PPM; lossy photon channels; noiseless optical communication systems; number-state pulse-position modulation; photon efficiency; Degradation; Fluctuations; Nonlinear optics; Optical fiber communication; Optical losses; Optical noise; Optical pulses; Performance loss; Propagation losses; Quantum mechanics;
Journal_Title :
Communications, IEEE Transactions on
