抗辐照保偏光纤耦合器  

Anti-irradiation polarization-maintaining fiber coupler

作　　者：庞璐[1] 宁鼎[1] 孙建军[1] 李瑞辰[1] 张佳琦[1] 刘铁根[2] 

机构地区：[1]中国电子科技集团公司第46研究所,天津300220 [2]天津大学精密仪器与光电子工程学院,天津300072

出　　处：《红外与激光工程》2013年第S01期204-207,共4页Infrared and Laser Engineering

基　　金：国家"973"计划(210CB327802)

摘　　要：为了满足光纤陀螺对抗辐照保偏光纤耦合器的需求,采用纯石英芯、掺氟包层结构设计制作了抗辐照保偏光纤,将保偏光纤预制棒的应力区与包层之间的相对折射率控制在0.001～0.0015以内。以玻璃焊料代替环氧树脂作为保偏光纤耦合器的封装材料,增强了保偏光纤耦合器的抗辐照性能。在辐照总剂量为100krad,辐照剂量率为0.1rad/s的条件下,其辐照感生损耗小于0.6dB。实验结果表明,这种抗辐照保偏光纤耦合器具备了一定的抗辐照能力。下一步将采用辐照加固的方法进一步提高其辐照性能。To meet the requirement of the fiber optic gyroscope （FOG） for the anti - irradiation polarization - maintaining fiber coupler （PMFC） , adopting the structure of pure silicon core and fluorine - doped cladding, anti - irradiation PMF is designed and produced. Relative refraction index of stressed zone and cladding was con- trolled in 0. 001 to O. 0015. Instead of epoxy, class solder was used as packaging material of PMFC. The anti - irradiation performance is enhanced. Under radiation dose of 100krad and dose rate of 0.1 rad/s, the loss inducted by irradiation was less than 0.6dB. Shown by the test, the PMFC has a certain anti - irradiation performance. Then the anti - irradiation performance of the PMFC will be enhanced by the method of irradiation hardening.

关 键 词：耦合器 保偏 抗辐照 纯石英 掺氟包层 

分 类 号：O436[机械工程—光学工程]