JJF 1690-2018 English PDF

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JJF 1690-2018: Calibration Specification for Polarization Dependent Loss Meters
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Basic data

Standard ID: JJF 1690-2018 (JJF1690-2018)
Description (Translated English): Calibration Specification for Polarization Dependent Loss Meters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A60
Word Count Estimation: 18,163
Date of Issue: 2018-02-27
Date of Implementation: 2018-05-27
Regulation (derived from): AQSIQ Announcement No. 26 of 2018
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine

JJF 1690-2018: Calibration Specification for Polarization Dependent Loss Meters

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Polarization Dependent Loss Meters National Metrology Technical Specification of the People's Republic Polarization dependent loss tester calibration specification Published on.2018-02-27 2018-05-27 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Polarization dependent loss tester Calibration specification Focal Point. National Optical Metrology Technical Committee Main drafting unit. The 41st Research Institute of China Electronics Technology Group Corporation China Institute of Metrology Participated in the drafting unit. Communication and Measurement Center of the Ministry of Industry and Information Technology This specification entrusts the National Optical Metrology Technical Committee to explain The main drafters of this specification. Wang Hengfei (The 41st Research Institute of China Electronics Technology Group Corporation) Li Guochao (The 41st Research Institute of China Electronics Technology Group Corporation) Xu Nan (China Institute of Metrology) Participate in the drafters. Ying Chengping (The 41st Research Institute of China Electronics Technology Group Corporation) Li Jian (China Institute of Metrology) Fu Dongbo (Communication and Measurement Center, Ministry of Industry and Information Technology)

table of Contents

Introduction (II) 1 Scope (1) 2 References (1) 3 terms and units of measurement (1) 3.1 Polarization dependent loss (1) 4 Overview (1) 4.1 Principle of Polarization Scanning Method (1) 4.2 Principle of Mueller Matrix Method (2) 4.3 Jones matrix principle (2) 5 Measurement characteristics (3) 5.1 Polarization dependent loss indication error (3) 5.2 Polarization-dependent loss measurement repeatability (3) 6 Calibration conditions (3) 6.1 Environmental conditions (3) 6.2 Measurement standards and other equipment (3) 7 Calibration items and calibration methods (4) 7.1 Calibration Project (4) 7.2 Calibration method (4) 8 calibration result expression (5) 9 re-interval time interval (5) Appendix A Calibration Original Record Reference Format (6) Appendix B Recommended Format for Calibration Certificate (7) Appendix C Example of Uncertainty Evaluation (8)

Introduction

JJF 1071-2010 "National Metrology Calibration Specification Writing Rules", JJF 1001-2011 "General Measurement Terms and Definitions, JJF 1059.1-2012 "Measurement Uncertainty Evaluation and Representation" together constitute the basis for the development of this calibration specification Basic series regulations. This specification refers to GB/T 18311.2-2001 "Basic testing and measurement of fiber optic interconnect devices and passive components" Procedures Part 3-2. Testing and Measuring the Polarization Dependence of Single Mode Fiber Optics - Test Method A, Test Device requirements and other related sections. This specification was first developed. Polarization dependent loss tester calibration specification

1 Scope

This specification applies to the calibration of a polarization dependent loss tester.

2 reference files

This specification refers to the following documents. GB/T 18311.2-2001 Basic test and measurement procedures for fiber optic interconnect devices and passive devices Part 3-2. Inspection and measurement of polarization dependence of single mode fiber optics For dated references, only dated versions apply to this specification; undated quotations The latest version (including all amendments) applies to this specification.

3 terms and units of measure

The following terms and definitions apply to this calibration specification. 3.1 polarization dependent loss polarizationdependentloss (PDL) The maximum change in output optical power of the optical device or optical network output port when the transmitted optical signal changes in the full polarization state Quantity, in dB, as defined in equation (1). PDL=Pmax-Pmin (1) In the formula. Pmax---the maximum output optical power of the output port under the full polarization state of the device under test, dBm; Pmin---the minimum output optical power of the output port under the full polarization state of the device under test, dBm.

4 Overview

Polarization dependent loss tester is mainly used in fiber optic and fiber optic devices (including couplers, optical circulators, optical connectors) And wavelength division multiplexer, etc.) Test of PDL technical indicators in the process of development, production and testing. Currently, polarization The methods used in the loss tester are mainly the polarization scanning method, the Mueller matrix method and the Jones matrix method. 4.1 Principle of polarization scanning method Polarization scanning method is the basic method of testing PDL. It completes the test according to the definition of PDL. Its testing principle is as follows. Figure 1 shows. The light output from the light source undergoes a random change in the polarization state after the polarization scanning module, due to the polarization of the device under test. Depending on the loss characteristics, the optical power received by the photodetector changes as the polarization state changes. When the polarization scanning module scans When the time is long enough, the polarization state of the device under test is sufficient, that is, from the series of data received by the photodetector, The PDL of the device under test is obtained by its definition. ......

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