Auto-locking Waveguide Amplifier System for Lidar and Magnetometric Applications

机译：激光雷达和磁力测量应用的自动锁定波导放大器系统

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We describe a compact waveguide amplifier system that is suitable for optically pumping rubidium magnetometers. The system consists of an auto-locking vacuum-sealed external cavity diode laser, a semiconductor tapered amplifier and a pulsing unit based on an acousto-optic modulator. The diode laser utilises optical feedback from an interference filter to narrow the linewidth of an inexpensive laser diode to ～500 kHz. This output is scannable over an 8 GHz range (at 780 nm) and can be locked without human intervention to any spectral marker in an expandable library of reference spectra, using the autolocking controller. The tapered amplifier amplifies the output from 50 mW up to 2 W with negligible distortions in the spectral quality. The system can operate at visible and near infrared wavelengths with MHz repetition rates. We demonstrate optical pumping of rubidium vapour with this system for magnetometric applications. The magnetometer detects the differential absorption of two orthogonally polarized components of a linearly polarized probe laser following optical pumping by a circularly polarized pump laser. The differential absorption signal is studied for a range of pulse lengths, pulse amplitudes and DC magnetic fields. Our results suggest that this laser system is suitable for optically pumping spin-exchange free magnetometers.

机译：我们描述了一种紧凑的波导放大器系统，适用于光泵浦magnet磁力计。该系统由一个自动锁定的真空密封外腔二极管激光器，一个半导体锥形放大器和一个基于声光调制器的脉冲单元组成。二极管激光器利用来自干涉滤光片的光反馈将廉价的激光二极管的线宽缩小到〜500 kHz。该输出可在8 GHz范围内（在780 nm处）扫描，并且可以使用自动锁定控制器在无需人工干预的情况下锁定到可扩展参考光谱库中的任何光谱标记。锥形放大器将输出功率从50 mW放大到2 W，频谱质量的失真可忽略不计。该系统可以在可见和近红外波长下以MHz重复频率运行。我们展示了用于磁力计系统的该系统对optical蒸气的光学泵浦。磁力计在圆偏振泵浦激光器进行光泵浦之后，检测线性偏振探针激光器的两个正交偏振分量的差分吸收。研究了差分吸收信号的一系列脉冲长度，脉冲幅度和直流磁场。我们的结果表明，该激光系统适用于光泵浦自旋交换无磁磁力计。

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来源
《High-power diode laser technology and applications XVI》|2018年|105140S.1-105140S.8|共8页
会议地点 San Francisco(US)
作者
A. Pouliot; H.C. Beica; A. Carew; A. Vorozcovs; G. Carlse; A. Kumarakrishnan;
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Department of Physics and Astronomy, York University, Toronto Ontario M3J 1P3;

Department of Physics and Astronomy, York University, Toronto Ontario M3J 1P3;

Department of Physics and Astronomy, York University, Toronto Ontario M3J 1P3;

Department of Physics and Astronomy, York University, Toronto Ontario M3J 1P3;

Department of Physics and Astronomy, York University, Toronto Ontario M3J 1P3;

Department of Physics and Astronomy, York University, Toronto Ontario M3J 1P3;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Auto-locked diode lasers; magnetometers; laser spectroscopy; tapered amplifiers;

机译：自动锁定二极管激光器；磁力计激光光谱锥形放大器;

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专利

1. Broadband coplanar-waveguide and microstrip low-noise amplifier hybrid integrations for k-band substrate integrated waveguide applications on low-permittivity substrate [J] . Taringou F., Bornemann J., Wu K. Microwaves, Antennas & Propagation, IET . 2014,第2期

机译：宽带共面波导和微带低噪声放大器混合集成，用于低介电常数衬底上的k波段衬底集成波导应用
2. Magnetometric Systems and Precise Magnetic Measurements for Biomedical Applications [J] . Yu. V. Maslennikov, V. Yu. Slobodchikov, V. A. Krymov, Bulletin of the Russian Academy of Sciences. Physics . 2020,第11期

机译：磁力系统和生物医学应用的精确磁测量
3. Aviation Magnetometric Navigation Systems and Prospectives of Their Prac- tical Applications [J] . Kiselev S.K Автоматика и Телемехелемех . 2001,第7期

机译：航空磁力导航系统及其实际应用前景
4. Auto-locking Waveguide Amplifier System for Lidar and Magnetometric Applications [C] . A. Pouliot, H.C. Beica, A. Carew, SPIE Conference on High-Power Diode Laser Technology . 2018

机译：用于激光雷达和磁体应用的自动锁定波导放大器系统
5. Transitions from substrate integrated waveguide to planar transmission lines and their applications to amplifier integration. [D] . Taringou, Farzaneh. 2012

机译：从基板集成波导到平面传输线的过渡及其在放大器集成中的应用。
6. A Low Cost Amplifier and Acquisition System for Cortical-Electroncephalography in Non-Human Applications [O] . A Viggiano, G Coppola 2018

机译：一种非人类应用的皮质脑电图的低成本放大器和采集系统
7. Er:YGG planar waveguide amplifiers for LIDAR applications [O] . Beecher Stephen, Grant-Jacob James, Hua Ping, 2016

机译：Er：用于激光雷达应用的YGG平面波导放大器
8. Performance of a Sealed-Off CO2-Isotope Laser Amplifier for High ResolutionOptical Radar/Lidar Applications [R] . Freed, C., Eng, R. S., Greene, J. S., 1992

机译：用于高分辨率光学雷达/激光雷达应用的密封式CO2同位素激光放大器的性能

Auto-locking Waveguide Amplifier System for Lidar and Magnetometric Applications

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