IEC 62077 pdf download

IEC 62077 pdf download Fibre optic circulators — Generic specification
1 General
1.1 Scope
This International Standard applies to circulators used in the field of fibre optics bearing all of the following features:
– they are non-reciprocal optical devices, in which each port is either an optical fibre or optical fibre connector;
– they are passive components containing no opto-electronic or other transducing elements;
– they have three or more ports for directionally transmitting optical power.
This standard establishes uniform requirements for the following:
– fibre optic circulator requirements;
– quality assessment procedures.
1.2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC QC 001 001 :1 998, IEC Quality Assessment System for Electronic Components (IECQ) – Basic rules
IEC QC 001 002-2:1 998, IEC Quality Assessment System for Electronic Components (IECQ) – Rules of Procedure – Part 2: Documentation
IEC QC 001 002-3:1 998, IEC Quality Assessment System for Electronic Components (IECQ) – Part 3: Approval procedures
IEC Guide 1 02:1 996, Electronic components – Specification structures for quality assessment (Qualification approval and capability approval
IEC 60027 (all parts), Letter symbols to be used in electrical technology
IEC 60050(731 ):1 991 , International Electrotechnical Vocabulary (IEV) – Chapter 731: Optical
fibre communication
IEC 6041 0:1 973, Sampling plans and procedures for inspection by attributes
IEC 6061 7 (all parts), Graphical symbols for diagrams
ISo 286-1:1988,ISo system of limits and fits – Part 1: Bases of tolerances, deviations andfits
ISO/FDIS 1101,Geometrical Product Specifications (GPS) – Geometrical tolerancing -Tolerances of form, orientation, location and run-out 1)
Iso 8601:1988,Data elements and interchange formats – Information interchange -Representation of dates and times
1.3Definitions
For the purpose of this International Standard，the definitions given in IEC 60050(731),together with the following definitions, apply.
1.3.1
fibre optic circulator
passive component possessing three or more ports numbered sequentially (1，2—-，n)through which optical power is transmitted non-reciprocally from port 1 to port 2,—-,fromport (i) to port (i+ 1)
1.3.2
port
optical fibre or optical fibre connector attached to a passive component for the entry and/orexit of the optical power
1.3.3
transfer matrix
optical properties of a fibre optic circulator can be defined in terms of an n x n matrix ofcoefficients where n is the number of ports,and the coefficients represent the fractionaloptical power transferred between designated ports