Self-organization of optical waveguides is observed between two opposed optical fibers placed in a photosensitive organic/inorganic hybrid material, Sunconnect. A luminescent target containing coumarin 481 was deposited onto the edge of one of the two fibers at the core. When a 448-nm write beam was introduced from the other fiber, the write beam and the luminescence from the photoexcited target increased the refractive index of Sunconnect to induce self-focusing. Traces of waveguides were seen to grow from the cores of both fibers and merged into a single self-aligned optical coupling between the fibers. This optical solder functionality enabled increases in both coupling efficiency and tolerance to lateral misalignment of the fibers.
© 2014 Optical Society of America
Original Manuscript: March 11, 2014
Revised Manuscript: April 9, 2014
Manuscript Accepted: April 16, 2014
Published: June 6, 2014
Tetsuzo Yoshimura, Makoto Iida, and Hideyuki Nawata, "Self-aligned optical couplings by self-organized waveguides toward luminescent targets in organic/inorganic hybrid materials," Opt. Lett. 39, 3496-3499 (2014)