公开(公告)号：EP2834687A1

公开(公告)日：2015-02-11

申请号：EP13772688.1

申请日：2013-04-04

申请人： OFS FITEL LLC

发明人： FINI, John, Michael ,  MENG, Linli ,  MONBERG, Eric ,  NICHOLSON, Jeffrey, W. ,  WINDELER, Robert

IPC分类号： G02B6/26

CPC分类号： G02B6/268 ,  G02B6/02047 ,  G02B6/02323 ,  G02B6/02338 ,  G02B6/032 ,  G02B6/14

摘要： Shunt fibers having a photonic bandgap cladding region including one or more hollow guiding regions of which one guiding region is configured as the core and one or more other guiding regions are configured as shunts, respectively, provide nearly single mode transmission in the core. The effective mode index of unwanted core modes and modes in one or more shunts are matched closely enough such that higher order modes will selectively couple to the shunt modes by resonant phase matching in the presence of fiber variations. The shunts are designed to have relatively higher losses thereby effectively dissipating power in the higher order modes at a faster rate.

摘要翻译： 具有包括一个或多个中空引导区域的光子带隙包层区域的分路光纤，其中一个引导区域被配置为核心并且一个或多个其他引导区域分别配置为分路，从而在核心中提供接近单模式的传输。 一个或多个分流器中不需要的核心模式和模式的有效模式索引足够匹配，使得高阶模式将通过在存在光纤变化的情况下通过谐振相位匹配选择性地耦合到分流模式。 分流器被设计成具有相对较高的损耗，从而以更快的速率有效地消耗更高阶模式的功率。