CAJ | 학술논문

通过数值模拟对两维3×3单模Nd:YAG激光网格阵列的动力学行为进行了研究.阵列中的激光束在光场中通过空间的局部耦合产生相互作用,可以通过对激光参数设置进行调节.数值研究表明,在一个相对较小区域的参数范围内,当任两台激光之间的空间耦合作用距离一定时,相应的激光束的强度之间可以实现混沌同步,并且具有特点:处于次对角线或与其平行对角线的对应位置上激光都可以实现混沌同步状态.通过对该激光阵列的功率谱和李雅普诺夫指数的计算和分析,可以确信所研究的强度同步的激光系统处于混沌状态.
통과수치모의대량유3×3단모Nd:YAG격광망격진렬적동역학행위진행료연구.진렬중적격광속재광장중통과공간적국부우합산생상호작용,가이통과대격광삼수설치진행조절.수치연구표명,재일개상대교소구역적삼수범위내,당임량태격광지간적공간우합작용거리일정시,상응적격광속적강도지간가이실현혼돈동보,병차구유특점:처우차대각선혹여기평행대각선적대응위치상격광도가이실현혼돈동보상태.통과대해격광진렬적공솔보화리아보낙부지수적계산화분석,가이학신소연구적강도동보적격광계통처우혼돈상태.
The dynamical properties of two-dimensional 3×3 lattice arrays of single-mode Nd:YAG lasers are investigated by numerical simulation. The lasers of the array are locally coupled and interacted through their optical fields and accommodated by setting some certain parameters of lasers. The results show that the intensities between some corresponding lasers can reach the state of chaotic synchronization under the rigor suitable parameters, when the distance between arbitrary two adjacent coupled lasers is in the proper area, and they also have the characteristics of chaotic synchronization between the lasers in the situation of minor diagonal or the parallel diagonal with minor diagonal. Through the computations and the analysis of the power spectra and Lyapunov exponents, it can be convinced that the states of the laser system are chaotic.