**4. Results and discussion**

In this section, we present the experimental CGH results obtained for the SDM and PIC applications.

#### **4.1 SLM platform for MCF**

A BER of 1.2 × 10<sup>−</sup><sup>3</sup> was measured in the experiment described in Section 3.2.1. Test result shows an error-free transmission below the BER limit of 3.8 × 10<sup>−</sup><sup>3</sup> (7% hard-decision FEC) [54, 55] threshold.

Thus, the SLM framework was able to properly function as a spatial coupling interface between the SLM generated pattern and the MCF cores. The platform allows an easy adjustment of the generated phase mask (CGH), contributing to an effective dynamic optimization of the MCF fiber transmission [18].

Future work will be performed in order to optimize the current convergence, namely, improve the optical system components (e.g., lenses and collimator) and the implemented phase masks [18].
