Femtosecond laser fabrication of tubular waveguides in poly(methyl methacrylate)

Center for Research and Education in Optics and Lasers, University of Central Florida, Orlando, Florida, United States
Optics Letters (Impact Factor: 3.18). 09/2004; 29(16):1840-2. DOI: 10.1364/OL.29.001840
Source: PubMed

ABSTRACT Femtosecond laser direct writing is employed for the fabrication of buried tubular waveguides in bulk poly(methyl methacrylate). A novel technique using selective chemical etching is presented to resolve the two-dimensional refractive-index profile of the fabrication structures. End-to-end coupling in the waveguides reveals a near-field intensity distribution that results from the superimposition of several propagating modes with different azimuthal symmetries. Mode analysis of the tubular waveguides is performed using the finite-difference method, and the possible propagating mode profiles are compared with the experimental data.


Available from: Kathleen Richardson, May 24, 2014