AA-DD扫描自相关仪
特点：
10-30000 fs脉宽范围
扫描率：0.1-20 Hz
线性畸变：<1 %
USB接口和软件
全反射光学元件
位置测量
条纹分辨自相关函数
无摩擦运动
可选光纤输入
AA-20DD实时自相关仪用于平滑快速测量飞秒和皮秒脉宽。自相关仪不同型号对应不同波长，AA-20DDM使用3个可互换光电探测器和光学元件可以覆盖这几个波长范围。根据需要可以覆盖两个独立的范围。输入脉宽范围从10 fs至30 ps，易于监视不同的激光器系统，尤其是飞秒和皮秒振荡器（监视放大器，见ASF-20单次自相关仪）。
仪器使用USB接口，可以连接Windows操作系统的计算机。提供Labview驱动及多种软件工具。采集的脉宽数据可视化，可存储或导出txt或dat文件。可以计算并实时显示自相关函数和*终FWHM飞秒脉宽。而且，可以高斯或双曲线拟合，也可查看强度函数。统计分析功能可以对几个单独的脉冲测量结果进行对比。
AA-20DD（132×123×118 mm）体积小，可以用在任何对空间要求严格的实验装置中。
可选择光纤输入，不同光纤进行快速可靠脉宽测量。而且，这种情况下自相关仪依然可以进行自由空间测量。
AA-20DD | AA-10DD-12PS | AA-10DD-30PS | |
Possible full wavelength range* | 450-3200 nm | ||
Subranges*(exchangeable photodetector/beam splitter pairs) | V: 450-700 nm R1: 700-1300 nm R2: 1300-2000 nm R3: 1950-3200 nm | ||
Input pulse duration range | 20 fs - 6 ps | 10 fs - 12 ps | 10 fs - 30 ps |
Input pulse repetition rate | >10 kHz | >10 Hz | >10 Hz |
Sensitivity (typical) | 100 mW2 | ||
Input polarization | linear， horizontal (vertical upon request) | ||
Scan rate | 0.1-20 Hz | ||
Linear distortion | <1% | ||
Collinear autocorrelation | yes (interferometric and intentsity) | ||
PC connection | USB | ||
Required equipment | Windows PC or oscilloscope | ||
Fiber input (optional) | FC/PC or FC/APC (other types on request) | ||
Signal source and detector type | two-photon conductivity in semiconductors | ||
Dimensions， mm | 132x129x117 - optical unit 225x190x45 - control unit | 185x180x145 - optical unit 225x190x45 - control unit | 185x180x145 - optical unit 225x190x45 - control unit |
* - the indicated subranges are covered by exchangeable photodetector/beam splitter pairs. I.e. the customer may choose from one subrange of their choice (to cover a desired corresponding wavelength region indicated in the table above) to four sets for complete full wavelength range coverage. Please indicate the required subranges for precise quotation and information when making a request for the product. | |||
