Overview

IEC 62077:2022 - "Fibre optic interconnecting devices and passive components - Fibre optic circulators - Generic specification" is the 4th edition international standard that defines generic requirements for fibre optic circulators. It applies to circulators that are:

non‑reciprocal optical devices where each port is an optical fibre or fibre optic connector;
passive components as defined by IEC TS 62538;
equipped with three or more ports for directional transmission of optical power.

This edition is a technical revision of IEC 62077:2015, harmonizing terms with IEC TS 62627-09 and updating Clause 4 (requirements). Informative annexes give an example of magneto‑optic circulator technology (Annex A), a circulator application (Annex B) and interface styles (Annex C).

Key Topics and Requirements

Classification and interfaces
- Port counts, port functions and interface styles for circulators (examples in Annex C).
Terms and definitions
- Formal definitions for ports, transfer matrix, transfer coefficients and performance terminology (harmonized with IEC TS 62627-09).
Performance requirements
- Directional transfer, insertion loss, isolation and other measurable optical characteristics (transfer matrix approach).
Documentation and specification
- Required technical documentation, drawings, symbol usage and a specification system for manufacturers and purchasers.
Tests and measurements
- Reference to basic test methods and measurement procedures (see IEC 61300 family) and requirements for test reports.
Design, construction and quality
- Material, workmanship, marking, packaging, storage conditions and safety considerations.
Reliability and standardization
- Links to interface, performance and reliability standards and guidance on variant identification.

Practical Applications and Who Uses It

IEC 62077:2022 is essential for:

Optical component manufacturers designing and certifying circulators.
Test laboratories performing standardized measurements and reporting.
System integrators and equipment vendors specifying components for telecom, metro, data center and sensor networks.
Procurement and quality teams ensuring components meet interoperable performance, safety and marking requirements.

Fibre optic circulators are used wherever directional routing of optical signals is required - for example in isolation, signal routing in WDM systems, fiber sensing and certain laser protection or monitoring arrangements (see Annex B for an example).

Related Standards

Relevant normative and reference documents include (but are not limited to):

IEC TS 62627-09 (vocabulary for passive optical devices)
IEC TS 62538 (passive device categorization definition)
IEC 61300 series (tests and measurement procedures)
IEC 60050-731, IEC 60825, IEC 60695-11-5
ISO standards for technical drawing and tolerancing (ISO 129-1, ISO 1101, ISO 286-1)

For procurement, design or compliance work involving fibre optic circulators, IEC 62077:2022 provides the generic specification foundation for interoperable, testable and safely manufactured passive circulator products.

Overview

non‑reciprocal optical devices where each port is an optical fibre or fibre optic connector;
passive components as defined by IEC TS 62538;
equipped with three or more ports for directional transmission of optical power.

Key Topics and Requirements

Classification and interfaces
- Port counts, port functions and interface styles for circulators (examples in Annex C).
Terms and definitions
- Formal definitions for ports, transfer matrix, transfer coefficients and performance terminology (harmonized with IEC TS 62627-09).
Performance requirements
- Directional transfer, insertion loss, isolation and other measurable optical characteristics (transfer matrix approach).
Documentation and specification
- Required technical documentation, drawings, symbol usage and a specification system for manufacturers and purchasers.
Tests and measurements
- Reference to basic test methods and measurement procedures (see IEC 61300 family) and requirements for test reports.
Design, construction and quality
- Material, workmanship, marking, packaging, storage conditions and safety considerations.
Reliability and standardization
- Links to interface, performance and reliability standards and guidance on variant identification.

Practical Applications and Who Uses It

IEC 62077:2022 is essential for:

Optical component manufacturers designing and certifying circulators.
Test laboratories performing standardized measurements and reporting.
System integrators and equipment vendors specifying components for telecom, metro, data center and sensor networks.
Procurement and quality teams ensuring components meet interoperable performance, safety and marking requirements.

Related Standards

Relevant normative and reference documents include (but are not limited to):

IEC TS 62627-09 (vocabulary for passive optical devices)
IEC TS 62538 (passive device categorization definition)
IEC 61300 series (tests and measurement procedures)
IEC 60050-731, IEC 60825, IEC 60695-11-5
ISO standards for technical drawing and tolerancing (ISO 129-1, ISO 1101, ISO 286-1)

IEC 62077:2022 PDF

Technical details

Abstract

Overview

Key Topics and Requirements

Practical Applications and Who Uses It

Related Standards

Related standards

Abstract

Overview

Key Topics and Requirements

Practical Applications and Who Uses It

Related Standards

Related standards

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