PAM-N—Fundamental Limits in Chromatic Dispersive-Uncompensated Channels
Source abstract
Abstract
The fundamental chromatic dispersion limit for an optical communication N-level pulse amplitude modulation (PAM-N) format without any dispersion compensating module is calculated. The main result of this analysis shows that in a non-dispersion-compensated channel, the product β2B2L (where β2, L, and B are the dispersion coefficient, fiber length, and the Baud rate, respectively) is bounded by a number, which depends only on the number of levels N. In particular, β2B2L < 0.318, β2B2L < 0.212, and β2B2L < 0.14 for N values of 2, 4, and 8, respectively. Moreover, an analytical expression for a noisy channel’s power penalty was formulated. This analytic expression shows high agreement with numerical simulations. To the best of our knowledge, this is the first time that such a fundamental limit has been formulated for PAM-N systems.
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Research context
OpenAlex topics: Optical Network Technologies · Advanced Fiber Laser Technologies · Photonic Crystal and Fiber Optics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electrical and Electronics Engineering, Ariel University, Ariel 4077625, Israel
Department of Electrical and Electronics Engineering, Holon Institute of Technology, Holon 5810201, Israel
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