BSI PD IEC/TR 61292-7:2011
$142.49
Optical amplifiers – Four wave mixing effect in optical amplifiers
| Published By | Publication Date | Number of Pages |
| BSI | 2011 | 26 |
This part of IEC 61292, which is a technical report, applies to optical amplifiers (OAs) using active fibres and waveguides, containing rare -earth dopants, currently commercially available.
It provides guidance on crosstalk caused by the four-wave mixing (FWM) effect. The object of this technical report is to provide introductory information for understanding of the crosstalk issue raised by the FWM effect. This report also presents a measurement method in Annex A.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 5 | FOREWORD |
| 7 | INTRODUCTION |
| 8 | 1 Scope and object 2 Normative references 3 Abbreviated terms |
| 9 | 4 FWM effect in EDFAs 4.1 General 4.2 Introduction of the FWM effect |
| 10 | 4.3 FWM crosstalk enhancement in EDFA Figures Figure 1 – Example of generation of FWM light |
| 11 | Figure 2 – Examples of EDFA with FWM effect |
| 12 | Annex A (informative) A technique for measurement of four wave mixing effect in OAs Figure A.1 – Basic measurement set-up |
| 14 | Table A.1 – Recommended test conditions |
| 16 | Figure A.2 – Measurement flow chart |
| 18 | Figure A.3 – Calculation of crosstalk |
| 20 | Annex B (informative) Underestimation of FWM crosstalk by reduced number of WDM inputs |
| 21 | Figure B.1 – Total number of combinations and number of combinations without the FWM channel that contribute to the FWM product generation for each channel number Figure B.2 – Total channel number dependence of the ratio of the number of the combinations under the condition fF = fr over the total number of combinations |
| 22 | Figure B.3 – Calculated FWM signal power when all the signal channels are input and excluding the channel that coincides with the FWM channel Figure B.4 – Dependence of the difference between the FWM signal powers for signals with all the channels and without the FWM channel on the total channel number for various EDF dispersion values |
| 23 | Bibliography |
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BSI PD IEC/TR 61292-7:2011
Optical amplifiers – Four wave mixing effect in optical amplifiers Published By Publication Date Number…
