IEC 61753-061-2-2020 PDF

Full title and description

Fibre optic interconnecting devices and passive components - Performance standard - Part 061-2: Single-mode fibre optic pigtailed style polarization independent isolators for category C - Controlled environments. This international standard (IEC 61753-061-2:2020, Edition 2.0) specifies minimum test and measurement requirements and severities for non-connectorized, single-mode, pigtailed polarization independent optical isolators to qualify them for use in controlled environments (category C).

Abstract

IEC 61753-061-2:2020 defines sample preparation, test methods, measurement conditions and classification criteria for single-mode fibre optic pigtailed polarization independent isolators intended for controlled environments. The 2020 second edition updates test conditions to align with IEC 61753-1:2018, adds high optical power test procedures and a CHD category, and includes detailed measurement conditions in annexes. It cancels and replaces the 2012 edition and the text of Corrigendum 1 (May 2025) has been incorporated.

General information

• Status: Published (International Standard, current)
• Publication date: 9 April 2020
• Publisher: IEC (International Electrotechnical Commission)
• ICS / categories: 33.180.10
• Edition / version: Edition 2.0 (2020) — Corrigendum 1 incorporated (May 2025)
• Number of pages: 42

Scope

This part of IEC 61753 applies to non‑connectorized, single‑mode, fibre‑pigtail style, polarization independent isolators as specified by IEC 61202-1, when intended for use in controlled environments (category C in IEC 61753-1). It establishes how samples shall be prepared and terminated, lists the minimum tests and severities, and defines measurement and reporting requirements so that products can be categorized against the performance criteria for controlled-environment applications.

Key topics and requirements

• Minimum test and measurement requirements and severities for single‑mode pigtailed polarization independent isolators.
• Sample preparation and termination requirements (referencing single‑mode fibre types and cable formats such as IEC 60793-2-50 and IEC 60794-2-50).
• Optical, mechanical and environmental test methods referenced from the IEC 61300 series.
• Measurement parameters including insertion loss, return loss, polarization dependent loss, transient loss and polarization mode dispersion where applicable.
• Addition of detailed high optical power test procedures and conditions (Annex B).
• Addition of detailed measurement conditions for certain tests (Annex C).
• Harmonization of test conditions with IEC 61753-1:2018 and introduction of the CHD category.
• Requirements for reporting test results and classifying isolators for category C (controlled environments).

Typical use and users

Manufacturers and designers of fibre‑optic isolators and passive optical components use this standard to develop and qualify pigtailed polarization independent isolators for telecom, datacom and precision optical systems operating in controlled environments. Test laboratories and quality/qualification engineers use it to perform and report standardized tests. Procurement and compliance teams reference it when specifying acceptance and performance criteria for controlled‑environment components.

Related standards

Key related standards include IEC 61753-1 (general performance standard and categorization for controlled environments), IEC 61202-1 (specification for optical isolators), the IEC 61300 series (test procedures for fibre optic interconnecting devices and passive components), IEC 60793-2-50 (single‑mode fibre specifications) and IEC 60794-2-50 (cable formats). National/adopted versions (EN/BS/DIN) and the published corrigendum to IEC 61753-061-2 are also relevant for implementers.

Keywords

fibre optic isolator, pigtailed isolator, single-mode, polarization independent, performance standard, IEC 61753, category C, controlled environments, high optical power test, IEC 61300, insertion loss, return loss

FAQ

Q: What is this standard?

A: IEC 61753-061-2:2020 is the part of the IEC 61753 series that specifies performance, test methods and severity levels for single‑mode, pigtailed, polarization independent fibre optic isolators intended for controlled environments (category C).

Q: What does it cover?

A: It covers sample preparation, required tests (optical, mechanical, environmental), measurement conditions, reporting requirements and classification criteria so that isolators can be qualified for controlled‑environment use. The 2020 edition adds high optical power test procedures, detailed measurement conditions, harmonization with IEC 61753-1:2018 and a CHD category.

Q: Who typically uses it?

A: Component manufacturers, product designers, test laboratories, quality/qualification engineers, and procurement or compliance teams specifying performance for fibre optic isolators in telecom, datacom and other controlled-environment optical systems.

Q: Is it current or superseded?

A: Edition 2.0 (published 9 April 2020) replaced the 2012 edition. Corrigendum 1 (May 2025) has been incorporated into the published text. As published by IEC with a stability date to 2031, it is the current edition at the time of publication.

Q: Is it part of a series?

A: Yes — it is part of the IEC 61753 series (performance standards for fibre optic interconnecting devices and passive components) and is linked to IEC 61753-1 (general categorization and performance principles) and to product‑specific standards such as IEC 61202-1 for isolator definitions.

Q: What are the key keywords?

A: Fibre optic isolator, single-mode, pigtailed, polarization independent, category C, controlled environments, performance standard, high optical power test, IEC 61300.