| 型号： | DOE_Expander_x2,5 |
| 产地： | 以色列 |
| 品牌： | HOLO/OR |
| 评分： |
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HOLO/OR引入了一个新模块，用于修改衍射光学元件（DOE）的某些输出参数。
该模块以放大系数减小或扩大DOE输出的整个角度。
与标准扩束器不同，我们的模块考虑了光束整形，光束分离和光束焦点元素的特性，从而以*小的像差实现了出色的效果。
该模块在以下情况下可能是有益的/适用的：
●将该模块与DOE一起使用，以创建整体功能，而单个元素很难制造该功能
●将HOLO / OR的模块添加到具有特定全角的标准，半标准或库存DOE中，以更改DOE的全角，从而避免支付任何NRE，并缩短了交货时间
HOLO / OR也能够根据客户的系统和要求定制模块。
一般规格
Material: | BK7 or Fused Silica |
Transmission: | ≥ 96% |
Fixed Expansion factor: | x2.5, x4, x5, x7 and x9.7 |
Product categories to be used with the DOE expander: | Beam Splitter, Homogenizer / Diffuser, Top-Hat Beam Shaper, Vortex Spiral Phase Plate, Diffractive Axicon, Multi-Circles |
Suitable for: | 266nm to 1550nm (exists in BK7 and also in FS) |
典型结构
DOE扩束器的表参数：
Part Number | Magnification | Max Entrance Aperture (mm) | Max DOE angle with aperture 15mm (deg) | Max DOE angle with aperture 22.9mm (deg) | Module length* | Outer diameter |
DOE_Expander_x2,5 | x2.5 | 22.9 | 4** | 3** | 118.9 | 30.5 |
DOE_Expander_x4 | x4 | 22.9 | 3** | 2** | 105.4 | 30.5 |
DOE_Expander_x5 | x5 | 22.9 | 3** | 1.6** | 118.9 | 30.5 |
DOE_Expander_x7 | x7 | 22.9 | 3.2** | 2.2** | 172.7 | 30.5 |
DOE_Expander_x10 | x9.7 | 22.9 | 3.2** | 2.5** | 183.2 | 35 |
*: not including the DOE and optional focusing lens
**: This maximal angle corresponds to maximal full angle of the DOE for square output shape. For round output shape, the maximal angle is x1.4 times larger.
优化结果示意图
Without DOE Expander | With DOE Expander x5 | With DOE Expander x9.7 |
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Far-field simulation results for a Square Top-Hat, from left to right, without DOE expander 1.5×1.5[deg], with DOE expander x5 7.5×7.5[deg] and with DOE expander x9.7 ~14×14[deg].
不同DOE扩束器在图像平面上的Square Top-Hat结果之间的比较：
Without DOE Expander | With DOE Expander x5 | With DOE Expander x9.7 |
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Simulation results for a Square Top-Hat 1.6deg in size, with (from left to right): perfect beam expander (not real lens) for ideal output spot, standard beam expander not optimized for use with a DOE and Holo/Or’s DOE Expander optimized for use with a DOE and additional focusing lens after the module.
Simulation input parameters: Wavelength 532nm and input beam diameter 8mm.
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Simulation results for a Square Top-Hat 2.0deg in size, with (from left to right): perfect beam expander (not real lens) for ideal output spot, standard beam expander not optimized for use with a DOE and Holo/Or’s DOE Expander optimized for use with a DOE and additional focusing lens after the module.
Simulation input parameters: Wavelength 532nm and input beam diameter 6mm.
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Simulation results for a Square Top-Hat 2.86deg in size, with (from left to right): perfect beam expander (not real lens) for ideal output spot, standard beam expander not optimized for use with a DOE and Holo/Or’s DOE Expander optimized for use with a DOE and additional focusing lens after the module.
Simulation input parameters: Wavelength 532nm and input beam diameter 6mm.
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