IEC TR 61292-7:2011 PDF

Name: IEC TR 61292-7:2011 — Optical amplifiers - Part 7: Four wave mixing effect in optical amplifiers
SKU: IEC TR 61292-7:2011
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Optical amplifiers - Part 7: Four wave mixing effect in optical amplifiers

Название (английский):

IEC TR 61292-7:2011

Optical amplifiers - Part 7: Four wave mixing effect in optical amplifiers

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 21
Дата публикации:: 24 ноября 2011 г.
Издание:: IEC TR 61292 edition 1 version 1
ICS:: 33.160.10

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Описание (английский):

IEC/TR 61292-7:2011(E) applies to optical amplifiers (OAs) using active fibres and waveguides, containing rare-earth dopants, currently commercially available. It provides guidance on crosstalk caused by the four-wave mixing (FWM) effect. The object of this technical report is to provide introductory information for understanding of the crosstalk issue raised by the FWM effect.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты IEC

Overview

IEC TR 61292-7:2011 - Optical amplifiers, Part 7: Four wave mixing effect in optical amplifiers is a technical report from IEC that explains the four-wave mixing (FWM) nonlinear phenomenon in optical amplifiers (OAs) based on active fibres and waveguides doped with rare-earth elements (for example, EDFAs). The report focuses on crosstalk caused by FWM in multi-channel WDM/DWDM amplification and provides introductory guidance, measurement techniques and informative annexes to help practitioners assess FWM-related impairments.

Key Topics

Scope and purpose: Applies to commercially available optical amplifiers using rare-earth-doped active fibres/waveguides; objective is to provide an introductory, practical understanding of FWM-induced crosstalk.

FWM fundamentals: Description of how FWM products (idler tones) are generated when multiple wavelengths coexist in an amplifier, including degenerate and non-degenerate cases and the role of third-order nonlinear susceptibility (χ(3)).

EDFA-specific issues: Discussion of circumstances that enhance FWM in EDFAs - e.g., long erbium-doped fibre lengths (notably in the L-band where longer fibre is needed for required gain) and high-power multi-channel amplification - and how these conditions increase signal deterioration.

Mathematical/physical background: Overview of propagation and generation mechanisms, gain distribution effects along the doped fibre, and the influence of dispersion and phase-matching on FWM product power.

Measurement guidance: Annex A provides a recommended measurement technique and test setup (including use of an optical spectrum analyzer), and Annex B addresses potential underestimation of FWM when using a reduced number of WDM inputs.

Normative reference: IEC 61290-10-4 (multichannel measurement methods using interpolated source subtraction with an OSA) is referenced as essential for application.

Applications - who uses this standard

OA/EDFA manufacturers - design verification, product specifications, and identification of operating regimes that minimize FWM crosstalk.

System designers and network engineers - WDM/DWDM link planning, node design (ROADMs, WSS), and power/gain budgeting to avoid nonlinear impairments.

Test laboratories and field technicians - standardized measurement procedures to quantify FWM-induced crosstalk and validate amplifier performance.

Researchers and component developers - understanding interactions between dispersion, gain profiles and nonlinear effects for next‑generation amplifiers and long‑haul systems.

Related Standards (if applicable)

IEC 61290-10-4: Optical amplifiers - Test methods - Part 10-4: Multichannel parameters - Interpolated source subtraction method using an optical spectrum analyzer.

Other parts of the IEC 61292 series (Optical amplifiers) for broader amplifier performance and test-method guidance.

Keywords: IEC TR 61292-7, optical amplifiers, four-wave mixing, FWM, EDFA, crosstalk, WDM, DWDM, measurement, optical spectrum analyzer.

IEC TR 61292-7:2011 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications - who uses this standard

Related Standards (if applicable)

Технические детали

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