SIST EN 2591-603:2004

Aerospace series - Elements of electrical and optical connection - Test methods - Part 603: Optical elements - Change of power distribution

This standard specifies a method of detecting changes in the power distribution when using optical connection elements (including permanent connections) with optical contacts and fibre optic couplers.
These changes are attributable to mode-selective loss mechanisms or uneven distribution of coupled modes.
It shall be used together with EN 2591-100.

Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 603: Optische Elemente - Änderung der Leistungsverteilungskurve

Diese Norm legt ein Verfahren zum Nachweis von Änderungen der Leistungsverteilung beim Einsatz von optischen Verbindungselementen (einschließlich dauerhaften Verbindungen) mit LWL-Kontakten und LWL-Kopplern fest.
Diese Änderungen sind auf modenselektive Dämpfungsvorgänge oder ungleichmäßige Verteilung gekoppelter Moden zurückzuführen.
Sie ist in Verbindung mit EN 2591-100 anzuwenden.

Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 603: Organes optiques - Modification de la distribution de puissance

Aerospace series - Elements of electrical and optical connection - Test methods - Part 603: Optical elements - Change of power distribution

General Information

• Status: Published
• Publication Date: 30-Apr-2004
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I08 - Imaginarni 08
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-May-2004
• Due Date: 01-May-2004
• Completion Date: 01-May-2004
• Ref Project: EN 2591-603:2002 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 603: Optical elements - Change of power distribution

Overview

EN 2591-603:2002 (Aerospace series) defines a test method to detect change of power distribution caused by optical connection elements - including connectors, permanent splices, optical contacts and fibre optic couplers. The standard targets mode-selective loss mechanisms and uneven distribution of coupled modes that alter the far-field radiation pattern of an optical fibre. It is intended to be used together with EN 2591-100 (general test arrangements) and referenced alongside EN 2591-601 (insertion loss configurations).

Key topics and requirements

• Scope: Measurement of changes in far-field power distribution introduced by optical elements (connectors, splices, couplers).
• Normative references: EN 2591-100 (general) and EN 2591-601 (insertion loss methods) are required for specimen preparation and test configurations.
• Specimen preparation:
  • Optical connection elements and splices: prepare “n” fibre specimens per EN 2591-601 method 1.
  • Couplers: prepare “n” specimens per EN 2591-601 method 2.
  • Technical specification shall specify cable/fibre type and length and the permitted change in the power distribution curve.
• Apparatus:
  • Light Launch System (LLS) and Light Detector System (LDS) as defined in EN 2591-100.
  • Detector options: single diode on a goniometer (measure in at least two axes), CCD/camera or video analyser for far-field mapping.
  • Detector spatial resolution must match required power-distribution resolution. Chopping the optical signal is recommended for easier evaluation.
• Method:
  • Baseline: measure far-field power distribution of the reference fibre.
  • For connectors/splices: cut and insert specimen, then re-measure.
  • For couplers: replace reference fibre with coupler specimen and measure.
  • Compare pre- and post-insertion curves; changes must meet the product standard’s permitted limits.

Applications

• Qualification and acceptance testing of aerospace optical connectors, splices and fibre optic couplers.
• Laboratory verification of mode-conditioning, mode-selective loss, and coupling uniformity in fibre-optic assemblies.
• Design validation for optical interconnects where far-field power distribution affects receiver performance or alignment sensitivity.

Who should use this standard

• Aerospace manufacturers and suppliers of optical connectors and couplers
• Test laboratories and quality/qualification engineers
• Systems integrators validating fibre-optic interconnect performance
• Procurement/specification authors referencing aerospace optical test methods

Related standards

• EN 2591-100 - Aerospace series: Test methods - Part 100: General
• EN 2591-601 - Aerospace series: Optical elements - Insertion loss

Keywords: EN 2591-603:2002, optical elements, change of power distribution, aerospace test methods, far-field measurement, mode-selective loss, fibre optic couplers, Light Launch System, Light Detector System.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2004
Aerospace series - Elements of electrical and optical connection - Test methods -
Part 603: Optical elements - Change of power distribution
Aerospace series - Elements of electrical and optical connection - Test methods - Part
603: Optical elements - Change of power distribution
Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren -
Teil 603: Optische Elemente - Änderung der Leistungsverteilungskurve
Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais -
Partie 603: Organes optiques - Modification de la distribution de puissance
Ta slovenski standard je istoveten z: EN 2591-603:2002
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 2591-603
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2002
ICS 49.060
English version
Aerospace series - Elements of electrical and optical connection
- Test methods - Part 603: Optical elements - Change of power
distribution
Série aérospatiale - Organes de connexion électrique et Luft- und Raumfahrt - Elektrische und optische
optique - Méthodes d'essais - Partie 603: Organes optiques Verbindungselemente - Prüfverfahren - Teil 603: Optische
- Modifcation de la distribution de puissance Elemente - Änderung der Leistungsverteilungskurve
This European Standard was approved by CEN on 8 February 2002.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2591-603:2002 E
worldwide for CEN national Members.

Foreword
This document (EN 2591-603:2002) has been prepared by the European Association of Aerospace
Manufacturers (AECMA).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
AECMA, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by December 2002, and conflicting national standards shall be
withdrawn at the latest by December 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, No
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