Optimization of Fabrication Parameters for Large-Core Polymeric Optical Waveguides by Hot Embossing
O. Sugihara, H. Mizuno, T. Kaino, M. Tomiki, N. Okamoto and M. Ohama
Fabrication of large core polymeric optical waveguides by hot embossing is demonstrated. UV-curable resin ridge stampers are used for hot embossing. The stampers has replicated the rectangular groove PMMA replicas, which act as under-claddings for optical waveguides. The optimum conditions for hot embossing are investigated. Low Propagation loss of ~0.13dB/cm at 650nm is realized for 500μm core waveguides.