光学学报, 2001, 21 (9): 1116, 网络出版: 2006-08-10
1×7圆柱形混合棒塑料光纤耦合器 下载: 520次
1×7 Cylindrical Mixing-Rod Plastic Optical Fiber Coupler
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.实验结果表明该耦合器是一种高性能价格比的塑料光纤耦合器.
Abstract
A novel high cost effective 1×7 cylindrical mixing rod plastic optical fiber coupler (CMRC) is proposed. Comparing with conventional tapered mixing rod plastic optical fiber 1×7 coupler (TMRC), 1×7 CMRC using cylindrical plastic optical fiber (POF) as mixing rod instead of tapered POF, thus the high demanding 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 of cylindrical mixing rod, a U shape optical fiber absorber is placed on 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 a equivalent coupling efficiency as 1×7 TMRC. The measured crosstalk of the 1×7 CMRC with U shape absorber is lower than -40 dB.
杨春, 孙小菡, 王云明, 张明德, 丁东. 1×7圆柱形混合棒塑料光纤耦合器[J]. 光学学报, 2001, 21(9): 1116. 杨春, 孙小菡, 王云明, 张明德, 丁东. 1×7 Cylindrical Mixing-Rod Plastic Optical Fiber Coupler[J]. Acta Optica Sinica, 2001, 21(9): 1116.