高非线性光子晶体光纤与单模光纤低损耗熔接实验

张巍; 张磊; 陈实; 蔡青; 黄翊东; 彭江得

中国激光, 2006, 33 (10): 1389, 网络出版: 2006-10-31

高非线性光子晶体光纤与单模光纤低损耗熔接实验

Low Loss Splicing Experiment of High Nonlinearity Photonic Crystal Fiber and Single Mode Fiber

论文大纲

张巍 ^1,*张磊 ¹陈实 ¹蔡青 ²黄翊东 ¹彭江得 ¹

作者单位

¹ 清华大学电子工程系, 北京 100084

² 北京玻璃研究院, 北京 100062

光纤光学光子晶体光纤熔接损耗模场失配过渡光纤 fiber optics photonic crystal fiber splicing loss mode field mismatching intermediate fiber

摘要

在理论分析基础上,采用常规电弧放电熔接技术,在1550 nm波段对高非线性光子晶体光纤(PCF)与单模光纤(SMF)的熔接损耗机制进行了实验研究,指出模场失配是造成两者直接熔接损耗的主要因素；而熔接过程中因放电电流过大或放电时间过长所导致的光子晶体光纤的包层气孔形变以致塌陷,会引起超过10 dB的附加损耗。采用过渡光纤有效地缓解了两种光纤模场的失配；通过优化放电参数,有效地避免了光子晶体光纤包层气孔的塌陷,实现了高非线性光子晶体光纤和单模光纤的低损耗(<1 dB)熔接。

Abstract

Theoretical and experimental investigations on the splicing loss mechanism of high nonlinearity photonic crystal fiber (PCF) and single mode fiber (SMF) at 1550 nm point out that mismatching of the mode field of these two kind fibers is the main cause of the splicing loss. And the air hole collapse due to long fusion time and large fusion current results in a large additional loss over 10 dB. An intermediate fiber is used to achieve the mode field matching. And optimized parameters are used to avoid air hole collapse during the arc fusion splice. The total splicing loss can be reduced to <1 dB.

参考文献

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张巍, 张磊, 陈实, 蔡青, 黄翊东, 彭江得. 高非线性光子晶体光纤与单模光纤低损耗熔接实验[J]. 中国激光, 2006, 33(10): 1389. 张巍, 张磊, 陈实, 蔡青, 黄翊东, 彭江得. Low Loss Splicing Experiment of High Nonlinearity Photonic Crystal Fiber and Single Mode Fiber[J]. Chinese Journal of Lasers, 2006, 33(10): 1389.

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