Multimode Erbium-Doped Fiber Amplifier Based on Double-Clad GeO2-Doped Photonic Crystal Fiber Supporting 38 Orbital Angular Momentum Modes

被引:0
|
作者
De, Ishani [1 ]
Gaur, Ankita [1 ,2 ]
Rastogi, Vipul [1 ,3 ]
机构
[1] Indian Inst Technol Roorkee, Dept Phys, Roorkee 247667, India
[2] Inst Plasma Res, Gandhinagar 382428, India
[3] Indian Inst Technol Roorkee, Ctr Photon & Quantum Commun Technol, Roorkee 247667, India
关键词
Optical fiber amplifiers; Vectors; Gain; Erbium-doped fiber amplifiers; Photonic crystals; Erbium; Optical fiber networks; Mode division multiplexing; multimode erbium doped fiber amplifier; orbital angular momentum modes; photonic crystal fiber; AMPLIFICATION; TRANSMISSION; PERFORMANCE; DESIGN;
D O I
10.1109/JLT.2024.3395835
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We propose a novel fiber design of multimode EDFA(MMEDFA) for the amplification of 38 orbital angular momentum(OAM) modes (l=1 to 10). The MMEDFA is based on double-cladGeO2-doped photonic crystal fiber (PCF) with only two layers ofair holes. The combined effect of the doped annulus core and the airholes in the fiber cladding results in the confinement loss lower than4.34x10(-10)dB/m and ensures that the minimum separationbetween adjacent vector eigenmodes is greater than1.8x10(-4).The mode effective area of all the supported eigenmodes is morethan230 mu m(2),whichresultsinlowvaluesofnon-linearityacrosstheC bandwidth. The gain of 38 signal OAM modes is more than 26 dB,and the differential modal gain (DMG) is less than 0.13 dB acrossthe C-band. The noise figure is below 4.14 dB for all the supportedsignal OAM modes. The proposed MMEDFA will be useful in modedivision multiplexing systems, providing relay amplification of allattenuated signal OAM modes.
引用
收藏
页码:5650 / 5656
页数:7
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