Di Leonardo Roberto, Bianchi Silvio
CNR-IPCF c/o Dipartimento di Fisica, Universit`a di Roma La Sapienza, Roma, Italy.
Opt Express. 2011 Jan 3;19(1):247-54. doi: 10.1364/OE.19.000247.
We demonstrate that a structured light intensity pattern can be produced at the output of a multi-mode optical fiber by shaping the wavefront of the input beam with a spatial light modulator. We also find the useful property that, as in the case for free space propagation, output intensities can be easily superimposed by taking the argument of the complex superposition of corresponding phase-only holograms. An analytical expression is derived relating output intensities ratios to hologram weights in the superposition.
我们证明，通过使用空间光调制器对输入光束的波前进行整形，可以在多模光纤的输出端产生结构化光强图案。我们还发现了一个有用的特性，即与自由空间传播的情况一样，通过取相应纯相位全息图复叠加的相位，可以轻松叠加输出强度。推导了一个解析表达式，将输出强度比与叠加中的全息图权重联系起来。
