SIST EN ISO 11807-1:2021

Integrated optics - Vocabulary - Part 1: Optical waveguide basic terms and symbols (ISO 11807-1:2021)

This document defines basic terms for integrated optical devices, their related optical chips and optical elements which find applications, for example, in the fields of optical communications and sensors.
—    The coordinate system used in Clause 3 is described in Annex A.
—    The symbols and units defined in detail in Clause 3 are listed in Annex B.

Integrierte Optik - Begriffe - Teil 1: Grundbegriffe und Formelzeichen optischer Wellenleiter (ISO 11807-1:2021)

Dieses Dokument legt Grundbegriffe für integriert-optische Baugruppen und ihre zugehörigen optischen Chips und optischen Elemente fest, die z. B. in den Bereichen der optischen Nachrichtentechnik und Sensorik eingesetzt werden.
—   Das Koordinatensystem, welches in Abschnitt 3 verwendet wird, ist in Anhang A beschrieben.
—   Die Symbole und Einheiten, die in Abschnitt 3 genau definiert werden, sind in Anhang B aufgeführt.

Optique intégrée - Vocabulaire - Partie 1: Termes fondamentaux et symboles des guides d'onde optique (ISO 11807-1:2021)

Le présent document définit les termes de base pour les dispositifs d'optique intégrée, leurs circuits et leur éléments optiques. Ils trouvent leur application dans les domaines des communications optiques et des détecteurs par exemple.
—    Le système de coordonnées utilisé dans l’Article 3 est décrit à l'Annexe A.
—    Les symboles et unités définis en détail dans l’Article 3 sont présentés dans le Tableau B.1.

Integrirana optika - Slovar - 1. del: Osnovni strokovni izrazi in simboli optičnih valovodov (ISO 11807-1:2021)

General Information

• Status: Published
• Public Enquiry End Date: 19-May-2020
• Publication Date: 14-Nov-2021
• ICS: 01.040.31 - Electronics (Vocabularies)
• ICS: 31.260 - Optoelectronics. Laser equipment
• Technical Committee: VAZ - Healthcare
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 04-Nov-2021
• Due Date: 09-Jan-2022
• Completion Date: 15-Nov-2021
• Ref Project: EN ISO 11807-1:2021 - Integrated optics - Vocabulary - Part 1: Optical waveguide basic terms and symbols (ISO 11807-1:2021)

Relations

• Replaces: SIST EN ISO 11807-1:2005 - Integrated optics - Vocabulary - Part 1: Basic terms and symbols (ISO 11807-1:2001)
• Effective Date: 01-Dec-2021

Overview

EN ISO 11807-1:2021 (Integrated optics - Vocabulary - Part 1) is a CEN-endorsed ISO standard that defines the basic terms, symbols and units used for optical waveguides and related integrated optical devices. It provides a unified vocabulary for planar integrated-optics components (waveguides, cores, claddings, substrates, superstrates) and their modal and loss characteristics, with an informative coordinate system (Annex A) and a consolidated list of symbols and units (Annex B). The document supports clarity and consistency in optical communications, sensing and integrated-photonics design.

Key topics and requirements

• Vocabulary and definitions
  • Core terminology for integrated optics (e.g., integrated optics, waveguide, slab waveguide, strip/channel waveguide).
  • Waveguide regions and materials: core, cladding, substrate, superstrate.
• Modes and polarization
  • Definitions of mode, guided mode, TE mode, TM mode, evanescent field, and modal indexing conventions.
• Waveguide properties
  • Terms covering refractive index distributions, modal confinement, and loss/attenuation concepts.
• Formal references and harmonization
  • Normative references include ISO 11807-2 (classification terms) and ISO 14881 (interface parameters relevant to coupling).
  • Harmonized terminology with IEC where applicable to reduce ambiguity.
• Coordinate system and symbols
  • Annex A: coordinate system used for defining geometry and polarization.
  • Annex B: list of standardized symbols and units for use in documentation and specifications.

Note: As a vocabulary standard, the document’s “requirements” are prescriptive definitions and symbol usage rather than test procedures or numerical specifications.

Applications and users

This standard is practical for anyone producing, specifying, testing or teaching about integrated optical components:

• Optical and photonic engineers-for consistent device descriptions, datasheets, and design documentation.
• Manufacturers and suppliers-to align product specifications, interface definitions and quality documents.
• Test laboratories and certification bodies-to ensure unambiguous reporting of waveguide properties and losses.
• System integrators-for matching coupling interfaces and polarization conventions in optical communications and sensor systems.
• Academia and training-as a reference for teaching standard terminology in integrated optics.

Common application areas: optical communications, integrated optical chips, optical sensors, photonic integrated circuits (PICs), and optoelectronic component datasheets.

Related standards

• ISO 11807-2 - Integrated optics - Vocabulary - Part 2: terms used in classification.
• ISO 14881 - Integrated optics - Interfaces - Parameters relevant to coupling properties.
• Harmonization with relevant IEC terminology (e.g., IEC 60050‑731) is noted where definitions overlap.

Keywords: integrated optics, optical waveguide, ISO 11807-1, vocabulary, waveguide modes, TE mode, TM mode, slab waveguide, strip waveguide, refractive index, optical communications, optical sensors, CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2021
Nadomešča:
SIST EN ISO 11807-1:2005
Integrirana optika - Slovar - 1. del: Osnovni strokovni izrazi in simboli optičnih
valovodov (ISO 11807-1:2021)
Integrated optics - Vocabulary - Part 1: Optical waveguide basic terms and symbols (ISO
11807-1:2021)
Integrierte Optik - Begriffe - Teil 1: Grundbegriffe und Formelzeichen optischer
Wellenleiter (ISO 11807-1:2021)
Optique intégrée - Vocabulaire - Partie 1: Termes fondamentaux et symboles des guides
d'onde optique (ISO 11807-1:2021)
Ta slovenski standard je istoveten z: EN ISO 11807-1:2021
ICS:
01.040.31 Elektronika (Slovarji) Electronics (Vocabularies)
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11807-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 01.040.31; 31.260 Supersedes EN ISO 11807-1:2005
English Version
Integrated optics - Vocabulary - Part 1: Optical waveguide
basic terms and symbols (ISO 11807-1:2021)
Optique intégrée - Vocabulaire - Partie 1: Termes Integrierte Optik - Begriffe - Teil 1: Grundbegriffe und
fondamentaux et symboles des guides d'onde optique Formelzeichen optischer Wellenleiter (ISO 11807-
(ISO 11807-1:2021) 1:2021)
This European Standard was approved by CEN on 9 October 2021.

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 CEN-CENELEC 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11807-1:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 11807-1:2021) has been prepared by Technical Committee ISO/TC 172 "Optics
and photonics" in collaboration with Technical Committee CEN/TC 123 “Lasers and photonics” the
secretariat of which is held by DIN.
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 April 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11807-1:2005.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 11807-1:2021 has been approved by CEN as EN ISO 11807-1:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 11807-1
Second edition
2021-10
Integrated optics — Vocabulary —
Part 1:
Optical waveguide basic terms and
symbols
Optique intégrée — Vocabulaire —
Partie 1: Termes fondamentaux et symboles des guides d'onde optique
Reference number
ISO 11807-1:2021(E)
ISO 11807-1:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 11807-1:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 General . 1
3.2 Waveguide structures . 2
3.3 Modes in integrated optical waveguides. 2
3.4 Refractive index distribution in integrated optical waveguides . 4
3.5 Properties of integrated optical waveguides . 8
3.6 Loss or attenuation in integrated optical waveguides. 8
Annex A (informative) Coordinate system .12
Annex B (informative) Symbols and units .13
Bibliography .14
iii
ISO 11807-1:2021(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 172 Optics and photonics, Subcommittee
SC 9, Laser and electro optical systems, in collaboration with the European Committee for Standardization
(CEN) Technical Committee CEN/TC 123, Lasers and photonics, in accordance with the agreement on
technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 11807-1:2001), which has been technically
revised. The main changes compared to the previous edition are as follows:
— Terminologies that have not been frequently used over the last 5 to 10 years are revised to those
matching to current trends.
— In the revision process, terminologies and definitions are compared to similar terminology
definitions in IEC and harmonized.
A list of all parts of ISO 11807 can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html .
iv
ISO 11807-1:2021(E)
Introduction
The aim of this document is to clarify the terms of the field of “integrated optics” and to define a unified
vocabulary. It is expected that this document will be revised periodically to adopt the requirements of
customers and suppliers of integrated optical products. At a later stage, it is planned to add definitions
from other International Standards which deal with integrated optics.
Some of the definitions are closely related to definitions given in IEC 60050-731. Wherever this can lead
to misunderstanding, integrated optics or integrated optical waveguide should be used together with
the defined term.
v
INTERNATIONAL STANDARD ISO 11807-1:2021(E)
Integrated optics — Vocabulary —
Part 1:
Optical waveguide basic terms and symbols
1 Scope
This document defines basic terms for integrated optical devices, their related optical chips and optical
elements which find applications, for example, in the fields of optical communications and sensors.
— The coordinate system used in Clause 3 is described in Annex A.
— The symbols and units defined in detail in Clause 3 are listed in Annex B.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
ISO 11807-2, Integrated optics — Vocabulary — Part 2: Terms used in classification
ISO 14881, Integrated optics — Interfaces — Parameters relevant to coupling properties
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 11807-2 and ISO 14881 and
the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 General
3.1.1
integrated optics
planar optical waveguide (3.2.1) structures, manufactured either in or on a substrate (3.2.6), including
the optical components necessary for the input and output coupling of lightwaves
Note 1 to entry: In this context the term “planar” is used to include small deviations from planarity which are
associated with Luneburg lenses, for example. By use of a suitable material, it is possible to integrate both
optoelectronic and purely optical functions on the same substrate. The simplest case is electrodes, which can
be used for controlling the properties of a waveguide. It is also possible to fabricate lasers and detectors using
compound semiconductor materials.
Note 2 to entry: It is envisaged that integrated optical components will be combined with other microtechnologies,
such as microelectronics and micromechanics, to build more complex systems. However, such systems are
beyond the scope of this document, which will be concerned only with the integrated optical component and its
immediate interfaces (see IEC 60050-731:1991, 06-43).
ISO 11807-1:2021(E)
3.2 Waveguide structures
3.2.1
waveguide
transmission line designed to guide optical power consisting of structures which guide lightwaves on
the basis of a higher refractive index in the core (3.2.4) and a lower refractive index in the surrounding
material
Note 1 to entry: The lightwaves in a waveguide propagate in modes.
3.2.2
slab waveguide
waveguide (3.2.1) which confines the optical field between two light guiding parallel surfaces
Note 1 to entry: See Figure A.1 where the Cartesian coordinate system is indicated for defining the several
terminologies relating to waveguides.
Note 2 to entry: In the previous edition "planar waveguide" was used as a synonym.
3.2.3
strip waveguide
channel waveguide
waveguide (3.2.1) which confines the optical field in a two-dimensional cross-sectional area
perpendicular to the lightwave propagating direction (wave vector) along a one-dimensional path
3.2.4
core
region(s) of an integrated optical waveguide (3.2.1), in which the optical power is mainly confined
3.2.5
cladding
material surrounding the waveguide (3.2.1) core (3.2.4)
Note 1 to entry: In contrast to optical fibres for integrated optical waveguides, the cladding often consists of
more than one material. Normally, it is necessary to distinguish between lower cladding and upper cladding due
to the planar fabrication process of integrated optical waveguides.
3.2.6
substrate
carrier onto or within which the integrated optical waveguide (3.2.1) is fabricated
3.2.7
superstrate
cladding (3.2.5) medium or layer structure with which the core (3.2.4) of the integrated optical
waveguide (3.2.1) is covered
Note 1 to entry: An electrode, for example, should not be considered as a superstrate. Although it covers the
waveguide, it does not influence the optical properties of the waveguide due to an optically insulating layer of
sufficient thickness.
3.3 Modes in integrated optical waveguides
3.3.1
mode
eigenfunction of Maxwell's equations, representing an electromagnetic field in a certain space domain
and belonging to a family of independent solutions defined by specific boundary conditions
Note 1 to entry: Each mode is defined according to its order in the vertical and horizontal directions and its
polarization, the latter being separated into TE- and TM-modes. The mode order is given by indexing TE and
ij
TM , where TE and TM represent the y- and x-direction of polarization, respectively. The symbols, i and j define
ij
the mode indices (the order) along x (horizontal) and y (vertical) respectively.
ISO 11807-1:2021(E)
3.3.2
guided mode
electromagnetic wave whose electric field decays monotonically in the transverse direction everywhere
outside the core (3.2.4) and which does not lose power
3.3.3
TE mode
transverse electromagnetic wave, where the electric field vector is normal to the direction of
propagation; i.e., the electric field vector lies in the transverse plane (xy-plane)
Note 1 to entry: Strictly speaking, in strip waveguides, hybrid modes having a non-zero component of the electric
and magnetic field in the direction of propagation do exist. Pure TE- and TM-modes are only found in waveguides
with a corresponding geometry — for example in slab waveguides. For integrated optical waveguides in planar
substrates, the polarization state is usually defined relative to the substrate surface. In slab waveguides, the
electric field vector of TE modes lies in the y-direction, as a result of the choice of the coordinate system.
3.3.4
TM mode
transverse electromagnetic wave, where the magnetic field vector is normal to the direction of
propagation; i.e., the magnetic field vector lies in the transverse plane (xy-plane)
Note 1 to entry: In slab waveguides, the magnetic field vector of TM mode lies in the y-direction, as a result of the
choice of the coordinate system.
3.3.5
evanesce
...