ABSTRACT
We present experimental and theoretical study of the interaction of Light Induced Self-Written (LISW) waveguides in photopolymers. We show that the diffusion of the monomer controls the refractive index distribution. Consequently it influences the interaction between the LISW channels allowing the observation of anti-crossing behavior or the propagation of an array of non interacting LISW waveguides.
ABSTRACT
We present the inscription of a Light Induced Self-Written (LISW) waveguide in a 4-cyano-4'-pentylbipheny (5CB) doped photopolymer. The dynamic reorientation of the 5CB molecules in the material under applied electric field leads to birefringence in LISW waveguide and thus allows the control of the phase of the guided mode.
Subject(s)
Biphenyl Compounds/chemistry , Biphenyl Compounds/radiation effects , Molecular Imprinting/methods , Nitriles/chemistry , Nitriles/radiation effects , Refractometry/instrumentation , Surface Plasmon Resonance/instrumentation , Telecommunications/instrumentation , Electromagnetic Fields , Equipment Design , Equipment Failure Analysis , Light , Polymers/chemistry , Polymers/radiation effects , Scattering, Radiation , Surface Properties/radiation effectsABSTRACT
The inscription of light-induced self-written waveguides (LISW) with multimode optical fibers cannot be achieved by using coherent light because of the filamentation phenomena coming from the interferences among the different propagating modes. To suppress this filamentation, we have used two distinct strategies, an incoherent light writing technique and an "on the flow" writing process, to demonstrate the buildup of 1.5 mm long multimode LISWs.
