| Effect of technological parameters on optical performance of fiber coupler |
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| 作者姓名： | 帅词俊 段吉安 钟掘 |
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| 作者单位： | School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China |
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| 基金项目： | 国家自然科学基金;教育部跨世纪优秀人才培养计划;高等学校博士学科点专项科研项目 |
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| 摘 要： | To find out the influence of technological parameters on optical performance of fused optical fiber device, the fiber coupler was served as subject investigated by using the fused biconical taper machining as experimental setup. Fused fiber coupler＇s optical performances such as insertion loss, excess loss, directivity and uniformity were tested with the optical test system that was constituted of tunable laser and optical spectrum analyzer. Especially the relationship between optical performance and drawing speed was investigated. The experimental results show that the optical performance is closely related to process conditions. At fused temperature of 1 200℃, there exists a drawing speed of 150μm/s, which makes the device＇s performance optimum. Out of this speed region, the optical performance drops quickly. At drawing speed of 200μm/s, the excess loss is relatively small when the fused temperature is above 1 200 ℃. So the technological parameters have close relationship with optical performance of the coupler, and the good performance coupler can＇t get until the drawing speed and fused temperature match accurately.
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| 关 键 词： | 光学纤维连接器 保险丝双锥形 科技参量 光学性能 |
| 收稿时间： | 24 August 2006 |
| 修稿时间： | 2006-08-242006-09-29 |
Effect of technological parameters on optical performance of fiber coupler |
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| Shuai Ci-jun , Duan Ji-an and Zhong Jue.Effect of technological parameters on optical performance of fiber coupler[J].Journal of Central South University of Technology,2007,14(3):370-373. |
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| Authors: | Shuai Ci-jun Duan Ji-an and Zhong Jue |
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| Affiliation: | School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China |
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| Abstract: | To find out the influence of technological parameters on optical performance of fused optical fiber device, the fiber coupler
was served as subject investigated by using the fused biconical taper machining as experimental setup. Fused fiber coupler’s
optical performances such as insertion loss, excess loss, directivity and uniformity were tested with the optical test system
that was constituted of tunable laser and optical spectrum analyzer. Especially the relationship between optical performance
and drawing speed was investigated. The experimental results show that the optical performance is closely related to process
conditions. At fused temperature of 1 200 °C, there exists a drawing speed of 150 μm/s, which makes the device’s performance
optimum. Out of this speed region, the optical performance drops quickly. At drawing speed of 200 μm/s, the excess loss is
relatively small when the fused temperature is above 1 200 °C. So the technological parameters have close relationship with
optical performance of the coupler, and the good performance coupler can’t get until the drawing speed and fused temperature
match accurately.
Foundation item: Project (50605063) supported by the National Natural Science Foundation of China; Project(NCET-040753) supported by New Century
Excellent Talents in University of China; Project (20050533037) supported by the Doctoral Program of Higher Education of China |
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| Keywords: | optical fiber coupler fused biconical taper technological parameter optical performance |
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