半导体激光器阈值电流的精确测量 |
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引用本文: | 赵一广.半导体激光器阈值电流的精确测量[J].中国激光,1988,15(9):555-557. |
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作者姓名: | 赵一广 |
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作者单位: | 北京大学物理系 |
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摘 要: | 一、引言阈值电流是半导体激光器的重要参数之一。通常用测量半导体激光器的输出光功率——电流(PI)特性曲线、观察远场或近场图样的变化以及光谱随电流的变化等来确定阈值,但误差较大。本文用测量半导体激光器调制光信号的二次谐波来确定阈值电流。理论和实验都表明用谐波测量法测定半
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收稿时间: | 1987/3/25 |
Accurate measurement of threshold current for semiconductor lasers |
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Abstract: | Analysis in this paper shows that a harmonic measurement method can be used to determine accurately the threshold current of semiconductor lasers. The experimental method and results are given and compared with those of other methods. |
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