一种可调节的双级偏振无关光隔离器  

An Adjustable Dual Stage Polarization Independent Optical Isolator

作　　者：杜伟[1] 郭阳宽[1] 祝连庆[1] 张荫民[1] 

机构地区：[1]北京信息科技大学光电信息与仪器北京市工程研究中心,北京100192

出　　处：《光电子技术》2015年第3期184-186 190,共4页Optoelectronic Technology

基　　金：北京市重大科技计划项目(PXM2012-014224-000019;PXM2013-014224-000017)

摘　　要：设计了一种通过调节减少损伤的双级偏振无关光隔离器。通过推导得出了双折射晶体与旋光晶体的间距d与光隔离器输出端o光与e光的间距Δh的函数关系,而Δh直接影响光纤准直器单位面积上的能量密度,进而影响光隔离器的抗损伤能力。设计了一种可调光隔离器结构实现这一功能。调节实验证明,隔离器工作性能稳定,并防止了在高功率下光隔离器的损伤。A dual stage polarization independent optical isolator which can reduce damage by adjustion was designed.The function relationship between gap d,which is the space between the birefringent crystal and the optical crystal,and the spaceΔh,which is the distance between the o light and the e light was deduced.The energy density on the optical fiber collimator could be affected by theΔh,by which the anti-damage ability of the optical isolator could also be affected.An adjustable structure optical isolator was designed.It is experimentally shown that the optical isolator can work stably and prevent the damage to the optical isolator.

关 键 词：可调节 损伤 光隔离器 

分 类 号：TN248[电子电信—物理电子学]