T. Uematsu, Y. Ishizaka, Y. Kawaguchi, K. Saitoh and M. Koshiba, "Design of a Compact Two-Mode Multi/Demultiplexer Consisting of Multimode Interference Waveguides and a Wavelength-Insensitive Phase Shifter for Mode-Division Multiplexing Transmission," in Journal of Lightwave Technology, vol. 30, no. 15, pp. 2421-2426, Aug.1, 2012.
T. Uematsu, T. Kitayama, Y. Ishizaka and K. Saitoh, "Ultra-Broadband Silicon-Wire Polarization Beam Combiner/Splitter Based on a Wavelength Insensitive Coupler With a Point-Symmetrical Configuration," in IEEE Photonics Journal, vol. 6, no. 1, pp. 1-8, Feb. 2014.
T. Uematsu, T. Kiyokura, H. Hirota, H. Iida, T. Kawano and T. Manabe, "Temporary Optical Coupler for Optical Cable Re-Routing Without Service Interruption," in IEEE Photonics Journal, vol. 10, no. 3, pp. 1-11, June 2018.
T. Uematsu, H. Hirota, T. Kawano, T. Kiyokura and T. Manabe, "Design of a Temporary Optical Coupler Using Fiber Bending for Traffic Monitoring," in IEEE Photonics Journal, vol. 9, no. 6, pp. 1-13, Dec. 2017.
T. Uematsu, H. Hirota, T. Kawano, H. Iida, K. Noto and K. Katayama, "Temperature-Independent Temporary Optical Coupler Using Fiber Bending Technique," in Journal of Lightwave Technology, vol. 41, no. 9, pp. 2834-2839, 1 May1, 2023.
T. Uematsu, K. Noto, H. Iida, H. Hirota and K. Katayama, "Optical Coupling Technique Based on Fiber Side-Polishing Without Service Interruption," in IEEE Photonics Technology Letters, vol. 34, no. 19, pp. 1042-1045, 1 Oct.1, 2022.
T. Uematsu, K. Noto, H. Iida, C. Fukai and I. Ogushi, "Asymmetric Curvature Side-Polished Optical Fiber Coupler," in IEEE Photonics Journal, vol. 15, no. 4, pp. 1-6, Aug. 2023.
T. Uematsu, K. Noto, C. Fukai and I. Ogushi, "Variable Branching of Any Single-Mode Fiber Installed in Optical Access Networks," in Journal of Lightwave Technology, Early access.