热容型板条激光器的感应折射率计算
文献类型：期刊论文
| 作者 | 尹宪华 ; 朱健强 ; 祖继锋 ; 范滇元 |
| 刊名 | 中国激光
 |
| 出版日期 | 2008 |
| 卷号 | 35期号:2页码:225 |
| 关键词 | 激光器 固体激光器 应力双折射 压光张量 Piezooptics tensors Stress birefringence Stress distribution |
| ISSN号 | 0258-7025 |
| 其他题名 | Calculation of induced refraction index in heat capacity slab laser |
| 中文摘要 | 高平均功率固体激光器的增益介质由于受热而容易发生畸变,如常用材料YAG,波前畸变和去偏振现象会同时发生,高热负载固体激光介质的热效应已成为制约激光器输出功率进一步提高的严重障碍。给出一种计算热容型板条激光器热感生折射率的方法。把YAG晶体的四阶压光张量从晶胞坐标系转换到实验室坐标系,采用经过坐标转换后的新的张量,可以分析在YAG激光器中任意应力分布引起的热感应双折射。进一步的计算表明,在zigzag板条激光器中,应力双折射率与板条从晶体毛胚上切割成材的角度有关。同时也对热容板条激光器的热效应和应力特性进行了二维的理论性概述。; Gain medium of modern high-average-power solid-state lasers can produce distortion for the reason of thermal effect, such as YAG. Wavefront distortion and depolarization often occur simultaneously. The thermal stress of the high-power solid state laser slab is becoming a serious problem for hindering the further power increasing of the laser. A method for calculating the thermally induced refraction index in a pumped heat capacity slab laser was studied. In this method, the fourth-rank piezo-optics tensors of YAG crystal were transformed from the crystal lattice coordinate system to the laboratory coordinate system. With these new tensors, the thermally induced stress birefringence in a solid-state laser can be analyzed easily for any stress distribution. Furthermore, the calculations show that the birefringence in a zigzag slab depends on the angle under which the slab is cut from the boule. A theoretical description of the thermal and stress characteristics of heat capacity slab laser in two dimensional was also presented. |
| 收录类别 | EI |
| 语种 | 中文 |
| 公开日期 | 2009-09-18 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/3214]  |
| 专题 | 上海光学精密机械研究所_高功率激光物理国家实验室 |
| 推荐引用方式 GB/T 7714 | 尹宪华,朱健强,祖继锋,等. 热容型板条激光器的感应折射率计算[J]. 中国激光,2008,35(2):225, 230. |
| APA | 尹宪华,朱健强,祖继锋,&范滇元.(2008).热容型板条激光器的感应折射率计算.中国激光,35(2),225. |
| MLA | 尹宪华,et al."热容型板条激光器的感应折射率计算".中国激光 35.2(2008):225. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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