A practical way of selective mode group excitation in large core graded-index multimode fibers

作者：Zhu Chengyu; Yuan Yibao; Yan Jiuchun; Zhang J H; Ba Dexin; Lü Zhiwei

来源：2013 International Conference on Optoelectronics and Microelectronics, ICOM 2013, China,Heilongjiang,Harbin, 2013-09-07 to 2013-09-09.

DOI：10.1109/ICoOM.2013.6626542

• graded-index multimode fibers
• mode mixing
• radial offset
• selective mode excitation

In this paper, we proposed a easy and stable way to selectively excite mode group in graded-index multimode fibers(GI-MMF). It was experimentally achieved by the welding of a single-mode fiber(SMF) and a GI-MMF with core/cladding diameter of 105/125 μm and adjusting the radial offset of the two fiber axis. The experiment result was discussed by observing the near-field pattern at the output of the GI-MMF. The effect of fiber length and bending curvature was also discussed.

• 出版日期2013