We report two-photon lensless imaging through a novel golden spiral multicore
fiber. This unique layout optimizes the sidelobe levels, field of view,
cross-talk, group delay and mode density to achieve a sidelobe contrast of
atleast 10.9 dB. We demonstrate experimentally the ability to generate and scan
a focal point with a femtosecond pulse and perform two-photon imaging.Comment: Submitted to Optics Letter