激光与光电子学进展, 2015, 52 (11): 111404, 网络出版: 2015-10-15
复合外腔半导体激光器的阈值增益研究 
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Study On Threshold Gain of Composite External Cavity Semiconductor Laser
激光器 复合外腔半导体激光器 阈值增益 等效反射率 闪耀光栅 lasers composite external cavity semiconductor laser threshold gain equivalent reflectivity blazed grating
摘要
对一种复合外腔半导体激光器的阈值增益进行分析，引入等效反射率建立该复合外腔半导体激光器阈值增益系数和阈值电流密度公式。通过数值模拟分析研究了闪耀光栅一级衍射效率、分光板反射率及谐振腔输出端面反射率对阈值增益系数的影响。最后对该复合外腔结构进行了简要分析，探索了进一步优化的可能性。
Abstract
The threshold gain of a composite external cavity semiconductor laser is analyzed. By introducing equivalent reflectivity, the formula of threshold gain coefficient and threshold current density of this composite external cavity semiconductor laser are established. By adopting numerical simulation, the influence of the first-order diffraction efficiency of blazed grating, beam splitter reflectivity and resonator output end reflectivity on the threshold gain is discussed and analyzed. Finally, this composite external cavity structure is analyzed and further optimization possibility is explored.
田锟, 邹永刚, 马晓辉, 杨晶晶. 复合外腔半导体激光器的阈值增益研究[J]. 激光与光电子学进展, 2015, 52(11): 111404. Tian Kun, Zou Yonggang, Ma Xiaohui, Yang Jingjing. Study On Threshold Gain of Composite External Cavity Semiconductor Laser[J]. Laser & Optoelectronics Progress, 2015, 52(11): 111404.
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