一种基于参数优化实现激光器单纵模输出的方法

本发明公开了一种基于参数优化实现激光器单纵模输出的方法，该方法包括以下步骤：S1、根据增益介质的增益线型和增益系数计算腔内相邻纵模受激发射截面比；S2、基于相邻纵模间增益差异，计算出相邻纵模强度比与纵模脉冲建立前荧光在腔内往返次数的关系曲线；S3、基于激光速率方程组，考虑腔内损耗和增益，数值求解相邻纵模脉冲的建立过程；S4、定量分析初始参数对单纵模形成的影响，确定互相匹配的初始参数，使激光器输出单纵模脉冲激光；该发明通过确定激光器中输出镜反射率、激光器光学腔长和被动调Q晶体的初始透过率的最佳且互相匹配的值，可增大模式之间的增益差，从而获得稳定的单纵模脉冲激光器输出。 The invention...

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Bibliographic Details
Format Patent
LanguageChinese
Published 19.12.2023
Subjects
BASIC ELECTRIC ELEMENTS
CALCULATING
COMPUTING
COUNTING
DEVICES USING STIMULATED EMISSION
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
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Summary:本发明公开了一种基于参数优化实现激光器单纵模输出的方法，该方法包括以下步骤：S1、根据增益介质的增益线型和增益系数计算腔内相邻纵模受激发射截面比；S2、基于相邻纵模间增益差异，计算出相邻纵模强度比与纵模脉冲建立前荧光在腔内往返次数的关系曲线；S3、基于激光速率方程组，考虑腔内损耗和增益，数值求解相邻纵模脉冲的建立过程；S4、定量分析初始参数对单纵模形成的影响，确定互相匹配的初始参数，使激光器输出单纵模脉冲激光；该发明通过确定激光器中输出镜反射率、激光器光学腔长和被动调Q晶体的初始透过率的最佳且互相匹配的值，可增大模式之间的增益差，从而获得稳定的单纵模脉冲激光器输出。 The invention discloses a method for realizing single longitudinal mode output of a laser based on parameter optimization. The method comprises the following steps: S1, calculating a stimulated emission cross section ratio of adjacent longitudinal modes in a cavity according to a gain line type and a gain coefficient of a gain medium; s2, based on the gain difference between the adjacent longitudinal modes, calculating a relation curve between the intensity ratio of the adjacent longitudinal modes and the number of reciprocating times of fluorescence in the cavity before establishment of the longitudinal mode pulse; s3, based on the laser rate equation set, considering intra-cavity loss and gain, and numerically solving an esta
Bibliography:Application Number: CN202111454709