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Stabilization of terahertz quantum-cascade lasers by near-infrared optical excitation

Martin Wienold, Tasmim Alam, Xiang Lü, Klaus Peter Biermann, Lutz Schrottke, H. T. Grahn, Heinz‐Wilhelm Hübers

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Abstract

Previously, we have demonstrated how near-infrared excitation can be exploited for light-induced frequency tuning of THz QCLs. Here, we show how this effect in combination with the tuning of the QCL driving current can be used to realize simultaneous frequency and power stabilization.

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What this paper is about

Previously, we have demonstrated how near-infrared excitation can be exploited for light-induced frequency tuning of THz QCLs. Here, we show how this effect in combination with the tuning of the QCL driving current can be used to realize simultaneous frequency and power stabilization.

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Available abstract

Previously, we have demonstrated how near-infrared excitation can be exploited for light-induced frequency tuning of THz QCLs. Here, we show how this effect in combination with the tuning of the QCL driving current can be used to realize simultaneous frequency and power stabilization.

Key concepts: Terahertz radiation, Cascade, Excitation, Optoelectronics, Infrared, Laser, Quantum cascade laser, Far-infrared laser

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