| 行波半导体激光放大器耦合技术研究 |
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| 引用本文： | 刘德明 刘雪峰. 行波半导体激光放大器耦合技术研究[J]. 光学学报, 1992, 12(4): 08-312 |
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| 作者姓名： | 刘德明 刘雪峰 |
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| 作者单位： | 华中理工大学光学系 武汉430074(刘德明，刘雪峰)，华中理工大学光学系 武汉430074(黄德修) |
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| 摘 要： | 本文从理论上分析了单模光纤与行波半导体激光放大器之间的耦合特性,导出一套简捷的设计光纤耦合头公式,比较不同的结构参数对光纤头耦合性能的影响,选出一种最佳设计方案.经实验验证.采用本文提出的光纤头微透镜处理技术,可使光纤-光放大器耦合损耗降至-3dB.
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| 关 键 词： | 耦合 半导体 激光 TWSLA 高斯光束 |
| 收稿时间： | 1991-05-06 |
A study of coupling technique for the TW-SLAs |
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| LIU DEMING LIU XUEFENG AND HuANG DEXIU. A study of coupling technique for the TW-SLAs[J]. Acta Optica Sinica, 1992, 12(4): 08-312 |
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| Authors: | LIU DEMING LIU XUEFENG AND HuANG DEXIU |
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| Abstract: | The technique of a single-mode fiber coupling with a Travelling-wave Semiconductor Laser Amplifier (TW-SLA) was investigated theoretically. A set of simple and useful formulas were developed for designing the fiber ends. The coupling characteristics of the fibers having hemispherical sphere ends (HE), inter-taper-with-hemisphere ends (IE) and outer-taper-with hemisphere ends (OE) wore compared each other and analyzed. It was confirmed that the coupling efficiency a from fiber into TW-SLA chip is much greater for the cases of IE and OE than for HE, with OE being the most efficient. A -3 dB coupling loss between fiber and TW-SLA chip has been obtained with the optimum fiber ends in our experiments. |
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| Keywords: | coupling optical ampl ifier semiconductor laser. |
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