全光短脉冲时间特性测试关键技术研究
文献类型：学位论文
| 作者 | 牛振国 |
| 学位类别 | 硕士 |
| 答辩日期 | 2015 |
| 授予单位 | 中国科学院上海光学精密机械研究所 |
| 导师 | 范薇 |
| 关键词 | 超快测量 时间波形 全光短脉冲时间特性测试 光致折射率改变 掺铁铌酸锂晶体 |
| 其他题名 | The key technology research on all-optical short pulse temporal characteristics test |
| 中文摘要 | 单次超短脉冲时域波形特性的测试是目前短脉冲光学领域的一个技术难点。本文对利用短脉冲光折变效应来实现单次短脉冲时域波形特性的测试进行了可行性分析和实验研究。论文开展了以下研究工作： 1. 针对基于光折变效应的短脉冲时间特性测试方法，改进了信号光偏转单元和输出光成像读取测量系统，并分析了时间分辨率和动态范围等关键参数的影响因素。 2. 针对波长1053nm的短脉冲时间特性测试，分析了基于GaAs和GaAlAs的半导体材料和掺铁铌酸锂晶体的光折变效应，结果表明，利用1053nm的倍频光泵浦铌酸锂晶体，可实现更大的光折变，该结果将有望简化基于光折变效应的短脉冲时间特性系统。 3. 分析研究了铌酸锂晶体的光折变效应与入射信号光的偏振方向的关系，结果表明e光的光折变效应比o光的光折变效应更显著。 4. 搭建了同源短脉冲光折变测试系统，利用锯齿光阑成像技术， 简化了光棱镜系统，利用1053nm的倍频光（527nm，10ps，0.33mJ）泵浦掺铁铌酸锂晶体，发生光折变效应，观测到信号光偏转的角度为4.111×10-5rad，对应的铌酸锂折射率变化为Δn=-4.633×10-5。 |
| 英文摘要 | Testing single ultra-short pulse time-domain waveform characteristics is a technical difficulty in short pulse optics. In this paper, the feasibility is analyzed and investigated by using short pulse photorefractive effect to acquire short pulse time-domain waveform characteristics of a single ultra-short pulse. The followings are carried out in this paper: 1. Aiming at the test method of short pulse time characteristics on the photorefractive effect, we improve the signal light deflection unit and the output light imaging measurement system, and analyze the influencing factors of time resolution and dynamic range, and other key parameters. 2. Aiming at the test of short pulse time characteristics whose wavelength is 1053nm, we analyze the photorefractive effect of the semiconductor material(GaAs and GaAlAs) and iron-doped lithium niobate, the results show that pumping by the harmonic light whose wavelength is 527nm, lithium niobate have greater photorefractive. The result is expected to simplify the test system of short pulse time characteristics on the photorefractive effect. 3. We analyze the relationship between the polarization direction of incident signal light and the photorefractive effect of lithium niobate, the results show that the photorefractive effect of e light is more significant than the photorefractive effect of o light. 4. We build a homologous short pulse photorefractive test system using serrated aperture imaging technology that simplifies the optical prism system. Using harmonic light (527nm, 10ps, 0.33mJ) to pump iron-doped lithium niobate crystal, we realize the photorefractive and observe the signal light deflection angle of 4.111×10-5rad, which shows the refractive index change of lithium niobate isΔn=-4.633×10-5. |
| 语种 | 中文 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/16905]  |
| 专题 | 上海光学精密机械研究所_学位论文 |
| 推荐引用方式 GB/T 7714 | 牛振国. 全光短脉冲时间特性测试关键技术研究[D]. 中国科学院上海光学精密机械研究所. 2015. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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