A Tutorial on Physical-Layer Impairments in Optical Networks

Politi, C.; Matrakidis, C.; Stavdas, A.

doi:10.1007/978-1-4614-5671-1_2

Cited by 1 publication

(1 citation statement)

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“…The quality of service is typically ensured when the user exhibits a bit-error-rate (BER) lower than a predetermined threshold. Physical impairments, such as amplified spontaneous emission (ASE) noise, chromatic dispersion and nonlinear effects [25] degrade the received signal-to-noise ratio (SNR), and thus, increase the BER of a transmission. To achieve maximum transmission distance, the optical power launched into each fiber needs to be optimized to balance the effects of linear and nonlinear impairments, which have a strong dependence on the signal wavelength.…”

Section: Methodsmentioning

confidence: 99%

Maximum transmission reach for optical signals in elastic optical networks employing band division multiplexing

Paz¹,

Saavedra²

2020

Preprint

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Multi-band transmission systems have emerged as a potential answer to the limited capacity of silica based optical fiber. It is based on utilizing the complete low-loss region of optical fibers. Additionally, elastic optical networks (EON) were proposed to efficiently manage limited resources in optical networks. The selection of route, modulation format and spectrum is the main problem that requires solving to operate an EON. Understanding how linear and nonlinear impairments accumulate during propagation in an optical fiber link is essential to solve this problem. Here we preset a study on the maximum reach optical signals can propagate in a multi-band environment for a variety of modulation formats with commonly used bit error rate threshold values in EON.

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Section: Methodsmentioning

confidence: 99%