Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain

Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain

According to the analytical expression for modal gain of few-mode erbium-doped fiber amplifiers (FM-EDFAs), we propose a method of measuring the absorption loss coefficients of few-mode signals in few-mode erbium-doped fibers (FM-EDFs) by extrapolating the mode–gain curve dependent on the average po...

Full description

Bibliographic Details
Main Authors: Yan Xu, Baojian Wu, Xinrui Jiang, Haomiao Guo, Feng Wen
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Photonics
Subjects:
few-mode erbium-doped fiber amplifier
erbium-ion doping concentration
mode division multiplexing
absorption loss
Online Access:https://www.mdpi.com/2304-6732/8/6/185
id doaj-3b399725f48148b98b14058a9f24c4c2
record_format Article
spelling doaj-3b399725f48148b98b14058a9f24c4c22021-06-01T01:05:15ZengMDPI AGPhotonics2304-67322021-05-01818518510.3390/photonics8060185Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode GainYan Xu0Baojian Wu1Xinrui Jiang2Haomiao Guo3Feng Wen4Key Laboratory of the Ministry of Education of Fiber Sensing and Communications, University of Electronic Science and Technology, Chengdu 611700, ChinaKey Laboratory of the Ministry of Education of Fiber Sensing and Communications, University of Electronic Science and Technology, Chengdu 611700, ChinaKey Laboratory of the Ministry of Education of Fiber Sensing and Communications, University of Electronic Science and Technology, Chengdu 611700, ChinaKey Laboratory of the Ministry of Education of Fiber Sensing and Communications, University of Electronic Science and Technology, Chengdu 611700, ChinaKey Laboratory of the Ministry of Education of Fiber Sensing and Communications, University of Electronic Science and Technology, Chengdu 611700, ChinaAccording to the analytical expression for modal gain of few-mode erbium-doped fiber amplifiers (FM-EDFAs), we propose a method of measuring the absorption loss coefficients of few-mode signals in few-mode erbium-doped fibers (FM-EDFs) by extrapolating the mode–gain curve dependent on the average population inversion. The absorption loss coefficient of an FM-EDF was measured in our experimental platform and used to estimate the effective erbium-ion doping concentration. The feasibility of the extrapolation method was verified by simulation and comparison with the transmission method. Furthermore, the FM-EDFAs with high modal gain and low differential mode gain (DMG) could be optimized by adjusting the FM-EDF’s length and pump power. The analysis process presented here is very useful for the efficient design of FM-EDFAs from a practical point of view.https://www.mdpi.com/2304-6732/8/6/185few-mode erbium-doped fiber amplifiererbium-ion doping concentrationmode division multiplexingabsorption loss
collection DOAJ
language English
format Article
sources DOAJ
author Yan Xu
Baojian Wu
Xinrui Jiang
Haomiao Guo
Feng Wen
spellingShingle Yan Xu
Baojian Wu
Xinrui Jiang
Haomiao Guo
Feng Wen
Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain
Photonics
few-mode erbium-doped fiber amplifier
erbium-ion doping concentration
mode division multiplexing
absorption loss
author_facet Yan Xu
Baojian Wu
Xinrui Jiang
Haomiao Guo
Feng Wen
author_sort Yan Xu
title Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain
title_short Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain
title_full Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain
title_fullStr Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain
title_full_unstemmed Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain
title_sort experimental measurement of absorption coefficients for effective erbium-doping concentration to optimize few-mode erbium-doped fiber amplifiers with low differential mode gain
publisher MDPI AG
series Photonics
issn 2304-6732
publishDate 2021-05-01
description According to the analytical expression for modal gain of few-mode erbium-doped fiber amplifiers (FM-EDFAs), we propose a method of measuring the absorption loss coefficients of few-mode signals in few-mode erbium-doped fibers (FM-EDFs) by extrapolating the mode–gain curve dependent on the average population inversion. The absorption loss coefficient of an FM-EDF was measured in our experimental platform and used to estimate the effective erbium-ion doping concentration. The feasibility of the extrapolation method was verified by simulation and comparison with the transmission method. Furthermore, the FM-EDFAs with high modal gain and low differential mode gain (DMG) could be optimized by adjusting the FM-EDF’s length and pump power. The analysis process presented here is very useful for the efficient design of FM-EDFAs from a practical point of view.
topic few-mode erbium-doped fiber amplifier
erbium-ion doping concentration
mode division multiplexing
absorption loss
url https://www.mdpi.com/2304-6732/8/6/185
work_keys_str_mv AT yanxu experimentalmeasurementofabsorptioncoefficientsforeffectiveerbiumdopingconcentrationtooptimizefewmodeerbiumdopedfiberamplifierswithlowdifferentialmodegain
AT baojianwu experimentalmeasurementofabsorptioncoefficientsforeffectiveerbiumdopingconcentrationtooptimizefewmodeerbiumdopedfiberamplifierswithlowdifferentialmodegain
AT xinruijiang experimentalmeasurementofabsorptioncoefficientsforeffectiveerbiumdopingconcentrationtooptimizefewmodeerbiumdopedfiberamplifierswithlowdifferentialmodegain
AT haomiaoguo experimentalmeasurementofabsorptioncoefficientsforeffectiveerbiumdopingconcentrationtooptimizefewmodeerbiumdopedfiberamplifierswithlowdifferentialmodegain
AT fengwen experimentalmeasurementofabsorptioncoefficientsforeffectiveerbiumdopingconcentrationtooptimizefewmodeerbiumdopedfiberamplifierswithlowdifferentialmodegain
_version_ 1721413129747824640

Similar Items