| 直接调制半导体激光器的脉冲驱动电路研究 |
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| 引用本文： | 舒雅,欧阳娴,刘百玉,白永林,党君礼.直接调制半导体激光器的脉冲驱动电路研究[J].光子学报,2009,38(3):519-522. |
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| 作者姓名： | 舒雅 欧阳娴 刘百玉 白永林 党君礼 |
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| 作者单位： | 1. 中国科学院西安光学精密机械研究所,瞬态光学与光子学国家重点实验室,西安,710119;中国科学院研究生院,北京,100049
2. 中国科学院西安光学精密机械研究所,瞬态光学与光子学国家重点实验室,西安,710119 |
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| 摘 要： | 研制了一种应用于直接调制半导体激光器的脉冲驱动电路.根据直接数字频率合成原理,利用现场可编程逻辑阵列产生频率可调方波去触发雪崩晶体管,以及雪崩晶体管的雪崩效应产生频率可调脉宽固定在3 ns的主体脉冲.该脉冲经过衰减器衰减得到合时的脉冲幅度.输出脉冲最高频率可到100 kHz,其输出电压幅度为9 V.
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| 关 键 词： | 半导体激光器 现场可编程逻辑阵列 直接数字频率合成 雪崩晶体管 Semiconductor lasers Field Programmable Gate Arrays (FPGA) Direct Digital synthesis (DDS) Avalanche transistor |
| 收稿时间： | 2007-10-29 |
| 修稿时间： | 2008-03-04 |
Pulse Driver Circuit for Directly Modulated Semiconductor Laser |
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| SHU Ya,OUYANG Xian,LIU Bai-yu,BAI Yong-lin,DANG Jun-li.Pulse Driver Circuit for Directly Modulated Semiconductor Laser[J].Acta Photonica Sinica,2009,38(3):519-522. |
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| Authors: | SHU Ya OUYANG Xian LIU Bai-yu BAI Yong-lin DANG Jun-li |
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| Institution: | 1 State Key Laboratory of Transient Optics and Photonics;Xi'an Institute of Optics and Precision Mechanics;Chinese Academy of Sciences;Xi'an 710119;China;2 Graduate University of Chinese Academy of Sciences;Beijing 100049;China |
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| Abstract: | A pulse driver circuit was designed for directly modulated semiconductor laser. Based on principle of Direct Digital Synthesis (DDS), Filed Programmable Gate Arrays (FPGA) was used to generate frequency-alterable square wave, which was used to trigger an avalanche transistor to obtain a frequency-alterable pulse with width of 3 ns due to avalanche effect. This pulse was sent to an attenuator in order to get appropriate amplitude. Output pulse with frequency up to 100 kHz and voltage up to 9V was obtained. |
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| Keywords: | Semiconductor laser Field Programmable Gate Arrays (FPGA) Direct Digital synthesis (DDS) Avalanche transistor |
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