Theoretical investigation of 6 mode multi/demultiplexer based on fused type multicore fiber coupler
Theoretical investigation of 6 mode multi/demultiplexer based on fused type multicore fiber coupler
复制标题
基于熔接型多芯光纤耦合器的6模合分波器的理论研究
DOI：
10.1109/jphot.2016.2559438
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发表时间：
2016
影响因子：
2.4
通讯作者：
and K. Saitoh
中科院分区：
文献类型：
--
作者：
S. Nishimoto;T. Fujisawa;Y. Sasaki;H. Uemura;and K. Saitoh
提出了一种基于熔融型多芯光纤耦合器的六模（LP 01/LP 11 ab/LP 21 ab/LP 02）分合器，并对其耦合特性进行了研究。在熔融型多芯光纤耦合器的细长区域中，通过中心芯的期望模式与外芯的LP 01模式之间的相位匹配来实现复用/解复用操作。基于光束传播法的数值计算结果表明，在1550 nm波长处，LP 01和LP 11/LP 21/LP 02模之间的耦合效率大于-0.1 dB，串扰小于-20 dB。
A six-mode (LP01/LP11ab/LP21ab/LP02) multi/demultiplexer based on a fused-type multicore fiber coupler is proposed, and the coupling characteristics are investigated. The multi/demultiplex operation is achieved by a phase matching between the desired mode of center core and the LP01mode of the outer core in the elongated region of the fused-type multicore fiber coupler. From the numerical results based on the beam propagation method, it is found that the coupling efficiencies between the LP01and LP11/LP21/LP02modes are more than -0.1 dB, and the crosstalk is lower than -20 dB at the wavelength of 1550 nm.