本文通过二阶矩法,分析了二维增益调制对于宽发光截面半导体激光器(BAL)的光束质量改善效果。光束质量是激光器工业应用中需要考虑的重要因素。BAL可以提供更大的输出功率,但其光束质量较常规半导体激光器差。本文测量了经过二维增益调制后的BAL。结果与未经过调制的BAL进行了比较。结果表明,经过二维增益调制后的BAL具有较高的阈值和较低的斜率效率,光束质量提高了20%。
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