| 2.5 THz量子级联激光器的研制 |
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| 引用本文： | 王雪敏, 沈昌乐, 蒋涛, 等. 2.5 THz量子级联激光器的研制[J]. 强激光与粒子束, 2015, 27: 120102. doi: 10.11884/HPLPB201527.120102 |
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| 作者姓名： | 王雪敏 沈昌乐 蒋涛 湛治强 黎维华 彭丽萍 邓青华 樊龙 王新明 阎大伟 赵妍 吴卫东 唐永建 |
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| 作者单位： | 1.中国工程物理研究院 激光聚变研究中心, 等离子体物理重点实验室, 四川 绵阳 621 900;;2.中国工程物理研究院 微系统与太赫兹研究中心, 四川 绵阳 621 900 |
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| 摘 要： | 基于束缚态到连续态跃迁有源区能带结构,实现了2.5 THz量子级联激光器的连续波工作。激光器的输出频率随电流可在2.45~2.47 THz之间可调,在连续波工作模式下的最高输出功率大于6.0 mW,最高连续波工作温度为60 K,阈值电流密度为120 A/cm2,经Si透镜整形后的输出光斑为高斯分布。
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| 关 键 词： | 太赫兹 量子级联激光器 连续波 子能带 高斯分布 |
| 收稿时间： | 2015-11-16 |
| 修稿时间： | 2015-11-26 |
Fabrication of 2.5 THz quantum cascade laser |
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| Wang Xuemin, Shen Changle, Jiang Tao, et al. Fabrication of 2.5 THz quantum cascade laser[J]. High Power Laser and Particle Beams, 2015, 27: 120102. doi: 10.11884/HPLPB201527.120102 |
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| Authors: | Wang Xuemin Shen Changle Jiang Tao Zhan Zhiqiang Li Weihua Peng Liping Deng Qinghua Fan Long Wang Xinming Yan Dawei Zhao Yan Wu Weidong Tang Yongjian |
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| Affiliation: | 1. Science and Technology on Plasma Physics Laboratory,Research Center of Laser Fusion,CAEP,P.O.Box 919-987-7,Mianyang 621900,China;;2. Research Center of Mircro-system and Terahertz,China Academy of Engineering Physics,Mianyang 621900,China |
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| Abstract: | Based on bound-to-continuum intersubband transition, the 2.5 THz quantum cascade laser with a continuous-wave (CW) output power of several mW is achieved. The lasing frequency of the device can be tuned by changing the applied current. The device shows a CW output power more than 6 mW, with a threshold current density of 120 A/cm2, and a lasing work temperature up to 60 K, and it is a quasi-Gaussian intensity distribution after beam reformation by using Si lens. |
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| Keywords: | terahertz quantum cascade laser continuous-wave intersubband Gaussian distribution |
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