The Alexandrite Ring Laser : A Spectrally Narrow Lidar Light Source for Atmospheric Fluorescence and Absorption Observations
The Alexandrite Ring Laser : A Spectrally Narrow Lidar Light Source for Atmospheric Fluorescence and Absorption Observations
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紫翠玉环形激光器：用于大气荧光和吸收观测的窄光谱激光雷达光源
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发表时间：
2004
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通讯作者：
D. Heller
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文献类型：
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作者：
S. Collins;T. Wilkerson;V. Wickwar;D. Rees;J. Walling;D. Heller
犹他州州立大学的大气激光雷达观测站（ALO）最近获得了一台由Light Age Incorporated开发的翠绿宝石激光器，这是一种相对较新的配置类型，非常适合共振激光雷达和DIAL观测。在双腔中建立单向环形激光，产生能量高达200 mJ的单纵模和横模（TEM 00）脉冲，脉冲长度为100 nsec或更长。本文部分是关于这种新型翠绿宝石激光器背后的先进技术的进展报告，以及新的性能水平将如何影响大气激光雷达观测。我们还没有将USU紫翠宝石激光器作为激光雷达发射机进行操作，但已经进行了该激光器和其他两个类似激光器的建造和测试，其中一个是激光雷达操作，另一个目前正在安装用于相同目的。本文回顾了紫翠宝石作为激光介质的一些显着特点，提供了这种可调谐稳频激光器的最新技术的当前状态的细节，并概述了地球物理激光雷达测量使用的紫翠宝石激光器的能力。
The Atmospheric Lidar Observatory (ALO) at Utah State University has recently acquired an alexandrite laser, developed by Light Age Incorporated, that is a relatively new type of configuration, ideal for resonance lidar and DIAL observations. Unidirectional ring lasing is established in a tworod cavity, producing single longitudinal and transverse mode (TEM00) pulses up to 200 mJ in energy and having a pulse length of 100 nsec or greater. This paper is, in part, a progress report on the advanced technology behind this new type of alexandrite laser, and how the new performance level will impact atmospheric lidar observations. We have not yet operated the USU alexandrite laser as a lidar transmitter, but have carried out the construction and testing of this and two other similar lasers, one of which is lidar-operational, and the other is currently being installed for the same purpose. This paper reviews some of the salient features of alexandrite as a laser medium, provides details on the current state-of-the-art of this tunable frequency-stabilized laser, and outlines the capabilities for geophysical lidar measurements using the alexandrite laser.