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首页> 外文期刊>Optics Letters >Dual-frequency single-axis laser using a lead lanthanum zirconate tantalate (PLZT) birefringent etalon for millimeter wave generation: beyond the standard limit of tunability
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Dual-frequency single-axis laser using a lead lanthanum zirconate tantalate (PLZT) birefringent etalon for millimeter wave generation: beyond the standard limit of tunability

机译：使用锆酸钽酸铅（PLZT）双折射标准具的双频单轴激光器产生毫米波：超出了可调性的标准限制

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摘要

We demonstrate the generation of optically carried, broadly tunable, millimeter-wave signals with a dual-frequency single-axis Nd:YAG laser. A frequency difference as high as 127 GHz is reached thanks to an intracavity electro-optically tunable etalon made of lead lanthanum zirconate tantalate (PLZT) ceramic. We show that the available frequency range is actually limited by the bandwidth of the amplification medium, namely, far beyond the usually accepted free spectral range value in the case of a single-axis laser. Both coarse discrete and fine continuous tunabilities are obtained with the same voltage-controlled device, opening the way to widely tunable low-phase-noise optically carried submillimeter or even terahertz sources.
机译：我们用双频单轴Nd：YAG激光器演示了光携带的，可广泛调谐的毫米波信号的产生。腔内由钽酸锆酸铅镧（PLZT）陶瓷制成的电光可调标准具，可实现高达127 GHz的频率差​​。我们表明，可用的频率范围实际上受到放大介质带宽的限制，也就是说，远远超出了单轴激光器通常可接受的自由光谱范围值。使用相同的电压控制设备可以获得粗略的离散和精细的连续可调性，这为通向广泛可调的低相位噪声光学承载亚毫米甚至太赫兹光源开辟了道路。

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