Analysis of supermode and structural characteristics of octagonal multicore photonic crystal fiber with large effective mode area and low confinement loss

作者：Li, Bo; Zhou, Guiyao^*; Xia, Changming; Liu, Hongzhan; Hou, Zhiyun

来源：Optical Engineering, 2014, 53(5): 056114.

DOI：10.1117/1.OE.53.5.056114

• photonic crystal fiber
• multicore
• supermode
• full-vector finite element method

An octagonal multicore photonic crystal fiber is proposed. The supermode and its far field distribution have been analyzed by using the full-vector finite element method. In the condition of in-phase supermode, the influences of different wavelengths, air filling fraction, and air hole diameter between cores on normalized intensity of cores are studied. The equal intensity distribution of cores in the output plane is realized. Finally, the effects of changing the air hole diameter between different cores on the effective mode area and confinement loss are investigated. The results show that the effective way to change the relative intensity between cores is to resize the air holes between different cores. If this parameter is changed, a better intensity distribution with large effective mode area and low confinement loss for propagation is obtained.

• 出版日期2014-5
• 单位华南师范大学