Beam divergence effects on high power optical parametric oscillation
文献类型：期刊论文
| 作者 | Li, HQ ; Geng, AC ; Bo, Y ; Wu, LA ; Cui, DF ; Xu, ZY |
| 刊名 | CHINESE PHYSICS
 |
| 出版日期 | 2005 |
| 卷号 | 14期号:10页码:2026 |
| 关键词 | NUMERICAL-ANALYSIS GENERATION THRESHOLD LIB3O5 |
| ISSN号 | 1009-1963 |
| 通讯作者 | Li, HQ: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | The beam divergence effects of the input pump laser on a high power nanosecond optical parametric oscillator (OPO) have been numerically simulated. The OPO conversion efficiency is affected due to the angular deviation of real laser beams from ideal phase matching conditions. Our theoretical model is based on the decomposition of the Gaussian beam and assumes each component has a single deviation angle and thus a particular wave vector mismatch. We take into account the variable intensity profile in the spatial and temporal domains of the Gaussian beam, the pump depletion effects for large-signal processes as well as the oscillatory effect of the three waves. Two nonlinear crystals beta-BaB2O4 (BBO) and LiB3O5 (LBO) have been investigated in detail. The results indicate that the degree of beam divergence strongly influences the maximum pump intensity, optimum crystal length and OPO conversion efficiency. The impact of beam divergence is much more severe in the case of critical phase-matching for BBO than in the case of non-critical phase-matching for LBO. The results provide a way to choose the optimum parameters for a high power ns OPO such as the nonlinear material, the crystal length and the pump intensity, etc. Good agreement is obtained with our experimental results. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34171]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li, HQ,Geng, AC,Bo, Y,et al. Beam divergence effects on high power optical parametric oscillation[J]. CHINESE PHYSICS,2005,14(10):2026. |
| APA | Li, HQ,Geng, AC,Bo, Y,Wu, LA,Cui, DF,&Xu, ZY.(2005).Beam divergence effects on high power optical parametric oscillation.CHINESE PHYSICS,14(10),2026. |
| MLA | Li, HQ,et al."Beam divergence effects on high power optical parametric oscillation".CHINESE PHYSICS 14.10(2005):2026. |
入库方式： OAI收割
来源：物理研究所
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