摘要
利用傅立叶方法导出的相干光束合成的远场表达式,讨论了一维锁相二极管激光列阵的相干合成远场。对发光单元数目分别为5、9、19列阵的同相模的远场光强分布进行了计算。以19个发光单元线阵为例,讨论了存在"smile"时DLA的远场特征,研究表明:"smile"对已经具有相干性的多光束合成场远场光强的分布并无严重的影响。
Using the expression of the far - field of coherent combined beams deduced by Fourier method, we discussed the far - field of coherent combined beams from one - dimensional diode laser array. 33ae far- field intensity, distribution of in - phase mode is calculated for the beam numbers of 5.9and 19, respectively. Taking linear array of M = 19 as an example, we discussed the far - field characteristics of DLA existing ＂smile＂, it is founded that the＂smile＂ has no serious influence on the far- field intensity distribution of coherent combined beams.
出处
《激光杂志》
CAS
CSCD
北大核心
2009年第1期11-12,共2页
Laser Journal
基金
国家自然科学基金(60578013)
