SIST EN 61290-7-1:2007

Optical amplifiers - Test methods -- Part 7-1: Out-of-band insertion losses - Filtered optical power meter method

This part of IEC 61290 applies to optical amplifiers (OAs) using active fibres presently commercially available containing rare-earth dopants. The object of this standard is to establish uniform requirements for accurate and reliable measurements, by means of the filtered optical power meter test method, of the following OA parameters, as defined in IEC 61291-1: a) out-of-band insertion loss; b) out-of-band reverse insertion loss. NOTE 1 The out-of-band insertion loss of an OA is highly dependent on the amplifier configuration and the out-ofband wavelength. NOTE 2 All numerical values followed by (‡) are suggested values.

Prüfverfahren für Lichtwellenleiter-Verstärker -- Teil 7-1: Einfügungsdämpfungen außerhalb des Bandes - Leistungsmessverfahren mit optischem Filter

Amplificateurs optiques - Méthodes d'essai -- Partie 7-1: Pertes d'insertion hors-bande - Méthode par puissance-mètre optique filtré

208569

Optični ojačevalniki – Preskušalne metode – 7-1. del: Zunajpasovna vnesena slabljenja – Metoda s filtriranim optičnim števcem (IEC 61290-7-1:2007)

General Information

• Status: Published
• Publication Date: 11-Sep-2007
• ICS: 33.180.30 - Optic amplifiers
• Technical Committee: iTEL - Communication cables
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 04-Sep-2007
• Due Date: 09-Nov-2007
• Completion Date: 12-Sep-2007
• Ref Project: EN 61290-7-1:2007 - Optical amplifiers - Test methods - Part 7-1: Out-of-band insertion losses - Filtered optical power meter method

Relations

• Replaces: SIST EN 61290-7-1:1999 - Optical fibre amplifiers - Basic specification -- Part 7-1: Test methods for out-of-band insertion losses - Filtered optical power meter
• Effective Date: 01-Nov-2007

Overview

EN 61290-7-1:2007 (IEC 61290-7-1:2007) defines a standardized test method - the filtered optical power meter method - for measuring out-of-band insertion loss and out-of-band reverse insertion loss of optical amplifiers (OAs). The document establishes uniform requirements and procedures to obtain accurate, repeatable measurements of power attenuation at wavelengths outside the amplifier’s signal/pump bands. The scope covers optical amplifiers using commercially available active fibres containing rare‑earth dopants, and the EN/IEC foreword extends applicability to all commercially available optical amplifiers.

Key Topics and Technical Requirements

• Purpose: measure how much power at an out‑of‑band wavelength is attenuated when passing through an OA (forward and reverse).
• Measurement principle: calibrate an optical filter with a reference optical source (P0), then insert the OA and measure transmitted out‑of‑band power (P1). Compute LOB = P0 − P1 (dB).
• Apparatus and characteristics required:
  • Optical source: continuous‑wave at the specified out‑of‑band wavelength; spectral FWHM < 1 nm (suggested).
  • Optical isolator: polarization dependent loss variation < 0.2 dB; isolation > 40 dB; reflectance < −40 dB (suggested).
  • Optical filter: passband at out‑of‑band wavelength and high attenuation across pump/signal ranges such that residual power from those ranges is >20 dB lower than the out‑of‑band power after the OA (suggested).
  • Optical power meter: measurement accuracy ±0.2 dB, polarization‑insensitive at the test wavelength.
  • Fiber jumpers: reflectance < −40 dB, length < 2 m; mode‑field diameter compatible with amplifier ports.
• Procedure highlights: include forward and reversed port measurements; follow calibration as per figures and steps in the standard.
• Reporting: test arrangement, source linewidth, measured wavelengths, pump power (if applicable), ambient temperature (if required), and insertion loss results.
• EMC: Clause 9 addresses electromagnetic compatibility requirements for devices and assemblies.

Applications and Who Uses It

• Intended users:
  • Test laboratories validating optical amplifier performance.
  • OA manufacturers specifying and verifying device insertion loss characteristics.
  • System integrators and network operators assessing the impact of amplifiers on out‑of‑band wavelengths (e.g., for monitoring channels, maintenance wavelengths).
• Practical value:
  • Ensures consistent, comparable measurements across vendors and labs.
  • Helps assess interference, monitoring port losses, and isolation between signal bands and out‑of‑band monitoring channels.
  • Supports product conformance to OE/telecom equipment specifications.

Related Standards

• EN/IEC 61291-1 (Optical amplifiers - Part 1: Generic specification) - normative companion.
• IEC Guide 107 (EMC drafting guidance)
• IEC 60793‑1, IEC 60825‑1/2, IEC 60874‑1, IEC TR 61931 - referenced for fiber, safety, connector, and terminology guidance.

Keywords: EN 61290-7-1:2007, optical amplifiers, out-of-band insertion loss, filtered optical power meter, OA test methods, optical filter, optical power meter, EMC.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Optical amplifiers - Test methods -- Part 7-1: Out-of-band insertion losses - Filtered optical power meter method (IEC 61290-7-1:2007)Amplificateurs optiques - Méthodes d'essai -- Partie 7-1: Pertes d'insertion hors-bande - Méthode par puissance-metre optique filtré (IEC 61290-7-1:2007)Prüfverfahren für Lichtwellenleiter-Verstärker -- Teil 7-1: Einfügungsdämpfungen außerhalb des Bandes - Leistungsmessverfahren mit optischem Filter (IEC 61290-7-1:2007)Ta slovenski standard je istoveten z:EN 61290-7-1:2007SIST EN 61290-7-1:2007en,fr,de33.180.30Optic amplifiersICS:SIST EN 61290-7-1:19991DGRPHãþDSLOVENSKI
STANDARDSIST EN 61290-7-1:200701-november-2007

EUROPEAN STANDARD EN 61290-7-1 NORME EUROPÉENNE
EUROPÄISCHE NORM June 2007
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2007 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61290-7-1:2007 E
ICS 33.180.30 Supersedes EN 61290-7-1:1998
English version
Optical amplifiers -
Test methods -
Part 7-1: Out-of-band insertion losses -
Filtered optical power meter method (IEC 61290-7-1:2007)
Amplificateurs optiques -
Méthodes d'essai -
Partie 7-1: Pertes d'insertion hors-bande - Méthode par puissance-mètre
optique filtré (CEI 61290-7-1:2007)
Prüfverfahren
für Lichtwellenleiter-Verstärker -
Teil 7-1: Einfügungsdämpfungen außerhalb des Bandes -
Leistungsmessverfahren
mit optischem Filter (IEC 61290-7-1:2007)
This European Standard was approved by CENELEC on 2007-05-01. CENELEC 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 Central Secretariat or to any CENELEC 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 CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

- 2 - Foreword The text of document 86C/726/CDV, future edition 2 of IEC 61290-7-1, prepared by SC 86C, Fibre optic systems and active devices, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel Unique Acceptance Procedure and was approved by CENELEC as EN 61290-7-1 on 2007-05-01. This European Standard supersedes EN 61290-7-1:1998. The main significant changes are the following: – the title has been changed to be consistent with other documents in the EN 61290 series; – the applicability has been extended to all commercially available optical amplifiers - not just optical fiber amplifiers; – Clause 9, EMC, has been added. This standard is to be used in conjunction with EN 61291-1:2006. The following dates were fixed: – latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2008-02-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2010-05-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61290-7-1:2007 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60793-1 NOTE Harmonized in EN 60793-1 series (not modified). IEC 60825-2 NOTE Harmonized as EN 60825-2:2004 (not modified). IEC 60874-1 NOTE Harmonized as EN 60874-1:2003 (not modified). __________

- 3 - EN 61290-7-1:2007
Annex ZA (normative)
Normative references to international publications with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE
When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year IEC 61291-1 - 1) Optical amplifiers -
Part 1: Generic specification EN 61291-1 2006 2)
1) Undated reference.
2) Valid edition at date of issue.

INTERNATIONAL STANDARD IECCEI NORME INTERNATIONALE61290-7-1Second editionDeuxième édition2007-04 Optical amplifiers – Test methods – Part 7-1: Out-of-band insertion losses – Filtered optical power meter method
Amplificateurs optiques – Méthodes d’essai – Partie 7-1: Pertes d’insertion hors-bande – Méthode par puissance-mètre optique filtré For price, see current cataloguePour prix, voir catalogue en vigueur PRICE CODE CODE PRIX K Commission Electrotechnique InternationaleInternational Electrotechnical Commission

– 2 – 61290-7-1 © IEC:2007
CONTENTS FOREWORD.3 INTRODUCTION.5
1 Scope and object.6 2 Normative references.6 3 Abbreviated terms.6 4 Apparatus.6 5 Test sample.7 6 Procedure.8 7 Calculation.8 8 Test results.8 9 Electromagnetic compatibility (EMC) requirements.9
Bibliography.10
Figure 1 – Typical arrangement of the optical filter test apparatus for out-of-band insertion loss measurements.7

61290-7-1 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
OPTICAL AMPLIFIERS –
TEST METHODS –
Part 7-1: Out-of-band insertion losses – Filtered optical power meter method
FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. A
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