| Self-aligned Coupled Waveguide Distributed Bragg Reflector Lasers |
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| 作者姓名： | LIU Guoli WANG Wei ZHU Hongliang ZHANG JingyuanHU Xiaohua LU Yu ZHANG Jing |
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| 作者单位： | National Research Center for Optoelectronic Technology，Institute of Semiconductors，The Chinese Academy of Sciences，Beijing 100083，China |
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| 基金项目： | Supported by National 863 project [Grant No. 863-307-11-1 (15)]，the National Natural Science Foundation of China (Grant No. 69896260). |
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| 摘 要： | A novel self-aligned coupled waveguide (SACW) multi-quantum-well (MQW) distributed Bragg reflector (DBR) laser is proposed and demonstrated for the first time. By selectively removing the MQW layer and leaving the low SCH/SACW layer the Bragg grating is partially formed on this layer. By optimizing the thickness of the low SCH/SACW layer, a-80% coupling efficiency between the MQW gain region and the passive region are obtained. The typical threshold current of the SACW DBR laser is 39 mA, the slope efficiency can reach to 0.2 mW/mA and the output power is more than 20 mW with a more than 30dB side mode suppression ratio.
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| 收稿时间： | 2001/3/20 |
Self-aligned Coupled Waveguide Distributed BraggReflector Lasers |
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| LIU Guoli WANG Wei ZHU Hongliang ZHANG JingyuanHU Xiaohua LU Yu ZHANG Jing.Self-aligned Coupled Waveguide Distributed Bragg Reflector Lasers[J].中国激光(英文版),2002,11(2):87-90. |
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| Authors: | LIU Guoli WANG Wei ZHU Hongliang ZHANG JingyuanHU Xiaohua LU Yu ZHANG Jing |
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| Abstract: | A novel self-aligned coupled waveguide (SACW) multi-quantum-well (MQW) distributed Bragg reflector (DBR) laser is proposed and demonstrated for the first time. By selectively removing the MQW layer and leaving the low SCH/SACW layer the Bragg grating is partially formed on this layer. By optimizing the thickness of the low SCH/SACW layer, a-80% coupling efficiency between the MQW gain region and the passive region are obtained. The typical threshold current of the SACW DBR laser is 39 mA, the slope efficiency can reach to 0.2 mW/mA and the output power is more than 20 mW with a more than 30dB side mode suppression ratio. |
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| Keywords: | DBR laser MQW self-aligned coupled waveguide high power |
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