Noise Pulsing of Narrow-Band ASE from Erbium-Doped Fiber Amplifier

TL;DR

This study experimentally investigates the noise characteristics of narrow-band ASE from erbium-doped fibers, revealing it behaves as a train of Gaussian-like pulses with random properties and influences spectrum broadening through self-phase modulation.

Contribution

It provides a detailed analysis of the statistical properties of ASE noise pulses and their impact on optical spectrum broadening, which was not previously characterized in this manner.

Findings

ASE noise behaves as Gaussian-like pulses with random parameters

ASE noise influences spectrum broadening via self-phase modulation

Statistical analysis of noise pulse parameters

Abstract

In this paper, we report an experimental study of noise features of polarized and unpolarized amplified spontaneous emission (ASE) with narrow optical bandwidth, registered from a conventional low-doped erbium fiber. We demonstrate that ASE noise can be considered as train of Gaussian-like pulses with random magnitudes, widths, and inter- pulse intervals. The statistical properties of these three parameters of noise pulsing are analyzed. We also present the results on the influence of ASE noise upon optical spectrum broadening, produced by self-phase modulation at propagating along communication fiber, and demonstrate that ASE noise derivation stands behind the broadening shaping.