Waveguide of amorphous perfluoropolymer for visible light

We developed an amorphous polymer of cyclized perfluoropolymer (CPFP) which is highly transparent throughout the visible range and fabricated waveguides of the polymer for visible light. At the wavelength of 405 nm, approximately 60% of lightwaves are propagated through the straight waveguide and over 50% of lightwaves are propagated through the buried waveguides with a radius of more than 30 mm, demonstrating the feasibility of the waveguides as light sources with a low numerical aperture in a single mode. The waveguides are prospective candidates for a multi-beam light source for parallel information processing such as optical recording systems.