Fused Fiber Mode Couplers for Few-Mode Transmission

被引：46

作者：

Li, An ^{[1
]}

Chen, Xi ^{[1
]}

Al Amin, Abdullah ^{[1
]}

Shieh, William ^{[1
]}

机构：

[1] Univ Melbourne, Dept Elect & Elect Engn, Melbourne, Vic 3010, Australia

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 21期

关键词：

Few-mode fiber; optical communications; optical fiber couplers; space-division-multiplexing; CO-OFDM SIGNAL; 2-MODE FIBER;

D O I：

10.1109/LPT.2012.2218803

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：

Space-division multiplexing (SDM) based on few-mode fibers has been studied as a promising technique to increase fiber capacity. In this letter, we show optimal design and simulation of a low-loss fused fiber mode coupler, one of the most critical enabling components for SDM transmission systems. We first analyze the performance of a 3x1 fused fiber mode coupler with asymmetric waveguide structure by fusing a single-mode fiber and a two-mode fiber (TMF) together. A minimum loss of <-1.9 dB and extinction ratio above 19 dB is predicated for both LP11 modes, over a wide wavelength range of 1505-1600 nm. We then analyze the performance of another fused fiber mode coupler with symmetric waveguide structure by fusing two TMFs together. A minimum loss of below 0.4/0.7 dB is predicated for both LP11 and LP01 modes.

引用

页码：1953 / 1956

页数：4

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