Fast continuous tuning of terahertz quantum-cascade lasers by rear-facet illumination
Fast continuous tuning of terahertz quantum-cascade lasers by rear-facet illumination
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DOI：
10.1063/1.4949528
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发表时间：
2016-05-09
影响因子：
4
通讯作者：
Grahn, Holger T.
中科院分区：
文献类型：
--
作者：
Hempel, Martin;Roeben, Benjamin;Grahn, Holger T.
GaAs 基太赫兹量子级联激光器 (QCL) 通过用近红外高功率二极管激光器照射背面来连续调谐其发射频率。对于发射频率约为 3.1 THz 的 QCL，在散热器温度为 55 K 时连续波工作的最大调谐范围为 2.8 GHz，而在脉冲模式下，在 35 K 和 55 K 时分别可实现 9.1 GHz 和 8.0 GHz。由 AIP 出版社出版。
GaAs-based terahertz quantum-cascade lasers (QCLs) are continuously tuned in their emission frequency by illuminating the rear facet with a near-infrared, high-power diode laser. For QCLs emitting around 3.1 THz, the maximum tuning range amounts to 2.8 GHz for continuous-wave operation at a heat sink temperature of 55 K, while in pulsed mode 9.1 and 8.0 GHz are achieved at 35 and 55 K, respectively. Published by AIP Publishing.