1×7圆柱形混合棒塑料光纤耦合器中的串扰及其功率代价

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摘要研究1×7圆柱形混合棒塑料光纤耦合器(CMRC)中由于混合棒端面反射造成的结构性串扰,建立不同误码率条件下串扰与功率代价的关系。串扰与功率代价的关系表明,在误码率为10^-9的条件下,1×7 CMRC的串扰小于-20dB时其功率代价接近于零。实验制作了1×7 CMRC,测得其端口间串扰为-23.5dB。为了进一步降低1×7 CMRC的串扰,试验了在混合棒的失配面上涂覆光吸收介质的方法。测量结果表明该方法可以使串扰降低5dB。

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	杨春
	孙小菡
	王云明
	张明德
	丁东

关键词 ：耦合器, 塑料光纤, 混合棒, 串扰, 功率代价

Abstract：Power penalty of crosstalk in 1×7 cylindrical mixing-rod plastic optical coupler (1×7 CMRC) is studied. Theoretical model on the relationship between inter-port crosstalk in 1×7 CMRC, power penalty and bit error rate (BER) is built. The model indicates that power penalty induced by the inter-port crosstalk under -20dB is insignificant and can be ignored. Experimental measurement of the 1×7 CMRC showing that the inter-port crosstalk is lower than -23dB, the inter-port crosstalk can be further lowered by about 5dB as the mismatched end-face of the mixing-rod is coated with optical absorb materials.

Key words： Coupler Plastic optical fiber Mixing rod Crosstalk Power penalty

收稿日期: 2000-11-24

PACS:

TN253

引用本文:

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中的串扰及其功率代价[J]. 电子与信息学报, 2002, 24(6): 833-837 . Yang Chun; Sun Xiaohan; Wang Yunming; Zhang Mingde; Ding Dong. Power penalty of crosstalk in 1 * 7 cylindrical mixing-rod plastic optical fiber coupler. , 2002, 24(6): 833-837 .

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http://jeit.ie.ac.cn/CN/ 或 http://jeit.ie.ac.cn/CN/Y2002/V24/I6/833