IEC 62129-3-2019 PDF

Full title and description

Calibration of wavelength/optical frequency measurement instruments — Part 3: Optical frequency meters internally referenced to a frequency comb. This international standard specifies procedures and requirements for calibrating optical frequency meters that use an optical frequency comb as an internal reference, intended for sources typical of the fibre‑optic communications industry and assuming coupling via single‑mode optical fibre.

Abstract

This document defines calibration methods, test requirements and uncertainty evaluation for optical frequency meters that derive their reference from an internal optical frequency comb. It is part of the IEC 62129 series addressing wavelength/optical‑frequency measurement instrument calibration and replaces the earlier technical specification published in 2014. The standard includes normative material on frequency‑dependence of uncertainty and annexes covering measurement methods and examples of frequency comb implementations.

General information

• Status: Withdrawn — withdrawal date 4 December 2023.
• Publication date: 20 May 2019 (first edition).
• Publisher: International Electrotechnical Commission (IEC), TC 86 Fibre optics.
• ICS / categories: 33.180.01 (Fibre optic systems in general); related classifications used in national adoptions include 33.180.30 and 33.140.
• Edition / version: Edition 1.0 (2019).
• Number of pages: 42 pages.

Scope

The standard applies to calibration of optical frequency meters that are internally referenced to an optical frequency comb and that measure optical frequencies emitted by sources typical of the fibre‑optic communications industry. It assumes optical input via single‑mode fibre and is intended to provide traceable calibration procedures, test conditions and uncertainty evaluation for such instruments. It is one part of the IEC 62129 series (see related parts for optical spectrum analyzers and Michelson interferometer single‑wavelength meters).

Key topics and requirements

• Calibration procedures for optical frequency meters using an internal optical frequency comb reference.
• Measurement test requirements including recommended test frequencies and coupling conditions (single‑mode fibre input).
• Uncertainty evaluation, including treatment of frequency‑dependence of uncertainty (Annex D made normative in this edition).
• Normative and informative annexes covering measurement methods (frequency measurement moved to Annex B), examples of optical frequency combs (Annex C), and mathematical/uncertainty basis.
• Calibration at a second optical frequency and other editorial/technical improvements over the 2014 technical specification.

Typical use and users

National and industrial calibration laboratories, manufacturers and designers of optical frequency meters and single‑wavelength measurement instruments, fibre‑optic test houses, and metrology institutes use the standard as a basis for establishing calibration procedures and demonstrating traceability for optical‑frequency measurements in telecom and related optical measurement applications.

Related standards

IEC 62129 series: IEC 62129‑1 (calibration of optical spectrum analyzers) and IEC 62129‑2 (calibration of Michelson interferometer single wavelength meters). The 2019 edition cancels and replaces IEC TS 62129‑3:2014. Other referenced documents include IEC/TR 61931 and ITU‑T recommendations such as G.694.1 and G.695 which are relevant to optical frequency/channel grid and related topics.

Keywords

optical frequency meter; optical frequency comb; calibration; wavelength measurement; uncertainty evaluation; single‑mode fibre; fibre‑optic communications; IEC 62129.

FAQ

Q: What is this standard?

A: IEC 62129‑3:2019 is an international standard that specifies calibration methods and requirements for optical frequency meters that use an optical frequency comb as an internal reference.

Q: What does it cover?

A: It covers calibration procedures, test requirements, uncertainty evaluation (including frequency‑dependence), and annex material describing measurement methods and examples of frequency comb sources for instruments used in fibre‑optic communications.

Q: Who typically uses it?

A: Metrology and calibration laboratories, optical instrument manufacturers, telecom test labs and national standards bodies use it to establish traceable calibrations for optical frequency measurements.

Q: Is it current or superseded?

A: IEC 62129‑3:2019 was published 20 May 2019 (1st edition) and has been withdrawn with a recorded withdrawal date of 4 December 2023. Users should verify whether a replacement or successor document exists for their application and consult their national standards body or the IEC for the most current recommendation.

Q: Is it part of a series?

A: Yes — it is Part 3 of the IEC 62129 series on calibration of wavelength/optical‑frequency measurement instruments; other parts include IEC 62129‑1 and IEC 62129‑2.

Q: What are the key keywords?

A: Optical frequency meter, optical frequency comb, calibration, wavelength measurement, uncertainty, single‑mode fibre, fibre optics.