摘要
提出一种新型的使用圆柱形混合棒的 1× 7塑料光纤耦合器。该耦合器直接使用粗塑料光纤制作混合棒 ,与传统的 1× 7圆锥形混合棒塑料光纤耦合器相比省略了成本高的混合棒拉锥过程 ,因而成本较低。对混合棒失配面外接U形光纤光吸收器的 1× 7圆柱形混合棒塑料光纤耦合器进行了理论分析和实验研究 ,实验测量该耦合器的通道串音小于 - 40dB ,其耦合效率接近于 1× 7圆锥形混合棒塑料光纤耦合器。
A novel high cost-effective 1×7 cylindrical mixing-rod plastic optical fiber coupler (CMRC) was proposed. Compared with conventional 1×7 tapered mixing-rod plastic optical fiber coupler (TMRC), 1×7 CMRC uses cylindrical plastic optical fiber (POF) as mixing-rod instead of tapered-POF, thus the high cost POF tapering process is eliminated and the cost of the coupler is greatly reduced. In order to reduce the crosstalk of 1×7 CMRC introduced by using cylindrical mixing-rod, a U-shape optical fiber absorber is placed in the mismatched area on the end face of the mixing-rod. Theoretical analysis and experimental measurement indicate that 1×7 CMRC with U shape absorber has an equivalent coupling efficiency as 1×7 TMRC. The measured crosstalk of 1×7 CMRC with U shape absorber is lower than -40 dB.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2001年第9期1116-1122,共7页
Acta Optica Sinica
基金
国家自然科学基金 (6 0 0 0 70 0 5 )
国家 95重点科技项目(95 72 0 2 2 0 1)资助课题
