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首页> 外文期刊>Journal of Applied Physics >Continuously tunable, phase-locked, continuous-wave terahertz generator based on photomixing of two continuous-wave lasers locked to two independent optical combs
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Continuously tunable, phase-locked, continuous-wave terahertz generator based on photomixing of two continuous-wave lasers locked to two independent optical combs

机译：连续可调，锁相，连续波太赫兹发生器，基于锁定到两个独立光学梳的两个连续波激光器的光混合

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摘要

A continuously tunable, phase-locked, single-frequency, continuous-wave (cw) terahertz generator has been demonstrated around 120 GHz, corresponding to the spectral bandwidth of the F-band unitraveling-carrier photodiode (UTC-PD) used as a photomixer in this study. This cw-terahertz generator is based on photomixing of an accurately tunable cw laser and a tightly fixed cw laser in the optical frequency region, phase locked to two independent optical combs. The continuous tuning range of the presented method was three orders of magnitude around 0.1 THz and two orders around 1 THz broader than that of a previous photomixing method in which two cw lasers are phase locked to a single optical comb, and fully covered the available spectral bandwidth of the F-band UTC-PD. The spectral behavior of the tight locking and continuous tuning of 120 GHz cw-terahertz radiation was confirmed in real time by use of a terahertz-comb-referenced spectrum analyzer. This cw-terahertz generator shows promise as a terahertz clock and synthesizer for terahertz frequency metrology.
机译：已经证明了在120 GHz左右具有连续可调，锁相，单频，连续波（cw）太赫兹发生器的能力，与用作光混频器的F波段单位载波光电二极管（UTC-PD）的光谱带宽相对应在这个研究中。该cw-太赫兹发生器基于光频范围内精确可调的cw激光器和紧密固定的cw激光器的光混合，并锁相到两个独立的光学梳。与以前的光混合方法相比，本发明方法的连续调谐范围约为0.1 THz的三个数量级，而宽度约为1 THz的两个数量级，在以前的光混合方法中，两个连续激光被锁相到单个光学梳，并完全覆盖了可用光谱F波段UTC-PD的带宽。通过使用太赫兹梳状参考频谱分析仪实时确认了紧密锁定和连续调谐120 GHz cw-太赫兹辐射的频谱特性。这种CW-太赫兹发生器显示出作为太赫兹时钟和太赫兹频率计量合成器的希望。

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    《Journal of Applied Physics》 |2010年第3期|共页
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  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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