 Ultra-thin optical fibers integrated into cold atom setups are ideal building blocks for atom photon hybrid quantum networks and can be used to demonstrate non-linear optics and quantum interference phenomena in atomic media. The observation of multilevel cascaded electromagnetically induced transparency, EIT, using an optical nanofiber to interface cold, the G7RB atom shows the potential of such an atom nanofiber system for quantum information, including simultaneously slowing down multiple wavelengths and generating ONF-guided entangled beams. All optical switching in the all-fibered system is also demonstrated using the obtained EIT effect. This article was authored by Ravi Kumar, Vandana Gokru and Saal NIC Kormaik.