首页> 外文OA文献 >Active local oscillator power stabilization for a hot electron bolometer heterodyne receiver
【2h】

Active local oscillator power stabilization for a hot electron bolometer heterodyne receiver

机译:用于热电子辐射热计外差接收器的有源本地振荡器功率稳定

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

We report on the application of a new technique for actively stabilizing the power of a far infrared gas laser as the local oscillator (LO) in a superconducting hot electron bolometer (HEB) heterodyne receiver system at 2.5 THz. The technique utilizes PID feedback control of the local oscillator intensity by means of a voice-coil based swing arm actuator placed in the beam path. The HEB itself is used as a direct detector to measure incident LO power whilst simultaneously continuing to function as heterodyne mixer. Results presented here demonstrate a factor of 50 improvement in the measured total power and spectroscopic Allan variance time. Allan times of 30 seconds and 25 seconds respectively are shown for large and small area HEB's with a measured effective noise fluctuation bandwidth of 12 MHz. The technique is versatile and can be applied to any LO source and at any LO frequency.
机译:我们报告了一种新技术的应用,该技术用于在2.5 THz的超导热电子辐射热计(HEB)外差接收器系统中,主动稳定作为本地振荡器(LO)的远红外气体激光器的功率。该技术通过放置在光束路径中的基于音圈的摆臂致动器,利用了本地振荡器强度的PID反馈控制。 HEB本身用作直接检测器,以测量入射LO功率,同时继续用作外差混频器。此处显示的结果表明,测得的总功率和光谱艾伦方差时间提高了50倍。对于大面积和小面积HEB,测得的有效噪声波动带宽分别为12 MHz,分别为30秒和25秒。该技术用途广泛,可应用于任何本振源和任何本振频率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号