中国物理B ›› 2017, Vol. 26 ›› Issue (11): 114203-114203.doi: 10.1088/1674-1056/26/11/114203
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Feng Liang(梁锋), De-Gang Zhao(赵德刚), De-Sheng Jiang(江德生), Zong-Shun Liu(刘宗顺), Jian-Jun Zhu(朱建军), Ping Chen(陈平), Jing Yang(杨静), Wei Liu(刘炜), Xiang Li(李翔), Shuang-Tao Liu(刘双韬), Yao Xing(邢瑶), Li-Qun Zhang(张立群), Mo Li(李沫), Jian Zhang(张健)
Feng Liang(梁锋)1,2, De-Gang Zhao(赵德刚)1,3, De-Sheng Jiang(江德生)1, Zong-Shun Liu(刘宗顺)1, Jian-Jun Zhu(朱建军)1, Ping Chen(陈平)1, Jing Yang(杨静)1, Wei Liu(刘炜)1, Xiang Li(李翔)1, Shuang-Tao Liu(刘双韬)1, Yao Xing(邢瑶)1, Li-Qun Zhang(张立群)4, Mo Li(李沫)5, Jian Zhang(张健)5
摘要:
Performances of blue and green laser diodes (LDs) with different u-InGaN upper waveguides (UWGs) are investigated theoretically by using LASTIP. It is found that the slope efficiency (SE) of blue LD decreases due to great optical loss when the indium content of u-InGaN UWG is more than 0.02, although its leakage current decreases obviously. Meanwhile the SE of the green LD increases when the indium content of u-InGaN UWG is varied from 0 to 0.05, which is attributed to the reduction of leakage current and the small increase of optical loss. Therefore, a new blue LD structure with In0.05Ga0.95N lower waveguide (LWG) is designed to reduce the optical loss, and its slope efficiency is improved significantly.
中图分类号: (Semiconductor lasers; laser diodes)