Low-loss Single-mode Polymer Optical Waveguides: comparison between direct-curing and the Mosquito methods

Polarization Dependence of Optical Properties of Single-Mode Polymer Optical Waveguides Fabricated Under Different Processes at 1310/1550 nm

“…Here, the insertion loss of the GI circular-core waveguide varies depending on the channel number while the SI square-core waveguide shows almost the same loss regardless of the core width. As a good agreement of MFD with SMF allows the high coupling efficiency of single-mode polymer optical waveguides with SMFs [10], the SI square-core waveguide whose MFDs correspond well with that of the SMF exhibits little difference in the insertion loss among the multiple cores, as shown in Fig. 9(a).…”

“…Here, the same monomers (organic-inorganic hybrid resins) as those already applied to the Mosquito method are used in order to obtain the reference samples. Then, we demonstrated the superior optical properties of single-mode waveguides fabricated using the Mosquito method compared to the conventional direct curing method due to its perfectly symmetric circular cores [10].…”

Fabrication of Y-Branched GI Core Polymer Waveguide and its Application to CWDM MUX Device for Multimode Fiber

“…22, the EF difference between an SI square and GI circular (#8) core is indicated, although these EFs are not measured using the setup in Fig. 17 square core waveguides are experimentally fabricated with the direct curing method (lithography), as we already reported in [22]. Applying the EF curves shown in Fig.…”