In this work, we present a new homemade double clad optical fiber (DCF), optimized for in-vivo nonlinear endomicroscopy. An experimental study has been performed to determine the excitation efficiency with different lengths of optical fiber and different power excitations at its output. This optical fiber was coupled with two kinds of gradient index (GRIN) lenses to test the efficiency of this system. The results were compared, experimentally and numerically, to previous ones in the literature using commercial DCF and GRIN lenses.
© 2016 Optical Society of AmericaPDF Article