- Y.Cai, T.Mizumoto and Y.Naito, "Fiber-waveguide coupler having a linear-tapered form", Trans. IEICE Japan, vol.E71, No.10, pp.931-933 (1988)
- Y.Cai, T.Mizumoto and Y.NAito, "Analysis of the coupling characteristics of a tapered coupled waveguides system", J.Lightwave Technology, vol.8, No.1, pp.90-98 (1990)
- T.Mizumoto and Y.Naito, "Dependence of the output phase difference on the asymmetry of 3dB directional couplers", J.Lightwave Technology, vol.8, No.10, pp.1571-1576 (1990)
- Y.Cai, T.Mizumoto and Y.Naito, "Analysis of the coupling characteristics of a tapered three-guide coupled system", J.Lightwave Technology, vol.8, No.10, pp.1621-1629 (1990)
- Y.Cai, T.Mizumoto, T.Saito and Y.Naito, "A Novel 1 X 8 optical power splitter using tapered waveguide coupling", IEEE Photonics Technology Letters, vol.3, No.2, pp.162-163 (1991)
- Y.Cai, T.Mizumoto, T.Saito and Y.Naito, "A novel three-guide optical coupler using a taper-formed waveguide", Journal of Applied Physics, vol.69, No.5, pp.2810-2814 (1991)
- Y.Cai, T.Mizumoto, E.Ikegami and Y.Naito, "An effective method for coupling single-mode fiber to thin-film waveguide", J.Lightwave Technology, vol.9, No.5, pp.577-583 (1991)
- Y.Emori, T.Mizumoto and Y.Naito, "Gereralized representation of a coupled mode equation using a normalized coordinate system", Trans. of IEICE, vol.J79-C-I, No.9, pp.355-362 (1996 in Japanese)
- Y.Emori, T.Mizumoto and Y.Naito, "Design of wavelength-flattened coupler using a novel diagram", J. Lightwave Technology, vol.14, No.12, pp.2677-2683 (1996)

- Y.Cai, T.Mizumoto, E.Ikegami and Y.Naito, "Efficient coupling between single-mode fiber and thin-film waveguide", 14-th European Conference on Optical Communication (ECOC 88), Brighton, Technical Digest pp.569-572, (Sept., 1988)
- T.Mizumoto, Y.Tomita, T.Asai and Y.NAito, "Waveguide-type optical hybrid coupler using nonidentical coupled waveguides", 2-nd Optoelectronics Conference (OEC '88), Tokyo, Technical Digest pp.178-179 (Oct., 1988)
- Y.Cai, T.Mizumoto, E.Ikegami and Y.NAito, "Study of efficient coupling between single-mode fiber and thin-film waveguide", 2-nd Optoelectronics Conference (OEC '88), Tokyo, Technical Digest pp.206-207 (Oct., 1988)
- Y.Cai, T.Mizumoto and Y.Naito, "Analysis of coupling characteristics of taper-formed coupled waveguides", 7-th International Conference on Integrated Optics and Optical Fiber Communication (IOOC 89), Koobe, Technical Digest pp.116-117 of vol.3 (July, 1989)
- Y.Cai, T.Mizumoto, T.Saito and Y.Naito, "Study of a novel tapered three-guide optical coupler", 3-rd Optoelectronics Conference (OEC '90), Makuhari, Technical Digest pp.130-131 (July, 1990)
- Y.Cai, T.Mizumoto, T.Saito and Y.Naito, "Experimental study of a novel tapered three-guide power splitter", 16-th European Conference on Optical Communication (ECOC 90), Amsterdam, Technical Digest pp.553-556 of Vol.1 (Sept., 1990)
- Y.Cai, T.Mizumoto, N.Uenishi and Y.Naito, "4 X 4 star couplers and 1 X 8 power splitters composed of tapered waveguide couplers", 17-th European Conference on Optical Communication (ECOC 91) and 8-th International Conference on Integrated Optics and Optical Fiber Communication (IOOC 91), Paris, Technical Digest part 1, pp.313-316 (Sept., 1991)
- Y.Emori, T.Mizumoto and Y.Naito, "A novel diagram representing the characteristic of a coupled waveguide", 5-th Microoptics Conference (MOC'95), Hiroshima, Technical Digest pp.200-203 (Oct. 1995)
- Y.Emori, T.Mizumoto and Y.Naito, "Generalized treatment of dielectric waveguide analysis in a normalized space", Progress in Electromagnetcs Research Symposium, Hong-Kon, Proceedings vol.1 p.171 (Jan. 1997)

- T.Mizumoto and Y.Naito, "Waveguide-type optical attenuator", Journal of Lightwave Technology, vol.LT-3, No.4, pp.841-843 (1985)
- T.Mizumoto, N.Iwakiri, T.Kanako and Y.Naito, "Waveguide optical polarization splitter with Langmuir-Blodgett cladding layer", Electronics Letters, vol.27, No.3, pp.271-273 (1991)
- T.Mizumoto, N.Iwakiri, T.Kanako and Y.Naito, "Analytical and experimental study of waveguide optical polarization splitter with Langmuir-Blodgett cladding layer", IEEE/OSA J. Lightwave Technology, vol.10, No.12, pp.1807-1813 (1992)
- K.Maru, Y.Abe, M.Ito, H.Ishikawa, S.Himi, H.Uetsuka, and T.Mizumoto, "2.5%-Delta silica-based athermal arrayed waveguide grating employing spot-size converters based on segmented core," IEEE Photonics Technology Letters, vol.17, No.11, pp.2325-2327 (2005)
- K.Maru, T.Hakuta, Y.Abe, M.Ito, S.Himi, H.Uetsuka, and T.Mizumoto, "Spot-size converter using vertical ridge taper for low fiber-coupling loss in 2.5%-Delta silica waveguides," Electronics Letters, vol.42, No.4, pp.219-220 (2006)
- K.Maru, T.Mizumoto, and H.Uetsuka, "Modeling of multi-input arrayed waveguide grating and its application to design of flat-passband response using cascaded Mach-Zehnder interferometers," IEEE/OSA J. Lightwave Technology, vol.25, No.2, pp.544-555 (Feb., 2007)
- K.Maru, T.Mizumoto, and H.Uetsuka, "Demonstration of flat-passband multi/demultiplexer using multi-input arrayed waveguide grating combined with cascaded Mach-Zehnder interferometers," IEEE/OSA J. Lightwave Technology, vol.25, No.8, pp.2187-2197 (Aug., 2007)

- S.Ohno, T.Mizumoto and Y.Naito, "Design and fabrication of integrated optical filter", 1-st Optoelectronics Conference (OEC '86), Tokyo, Technical Digest pp.24-25 (July, 1986)
- T.Mizumoto, N.Uenishi, Y.Emori, H.Tachibana and Y.Naito, "An optical waveguide Mach-Zehnder filter employing tapered couplers", 6-th European Conference on Integrated Optics, Neuchatel, Technical Digest 14-12 (April, 1993)
- K.Maru, Y.Abe, H.Ishikawa, M.Ito, S.Himi, H.Uetsuka, and T.Mizumoto, "2.5%-Delta athermal arrayed-waveguide grating multi/demultiplexer with low trench diffraction loss," the 11th Microoptics Conference (MOC'05), Tokyo, C3, pp.44-45 (Oct.30-Nov.2, 2005)
- K.Maru, T.Mizumoto, and H.Uetsuka, "Flat-passband arrayed waveguide grating employing cascaded Mach-Zehnder interferometers," the 11th Optoelectronics and Communications Conference (OECC 2006), Kaoshung, Taiwan, 5B2-5 (July 5, 2006)
- K.Maru, T.Mizumoto, and H.Uetsuka, "Super-high-Delta silica-based flat-passband filter using AWG and cascaded Mach-Zehnder interferometers," the 12th Optoelectronics and Communications Conference /Integrated Optics Conference (OECC/IOOC 2007), Yokohama, 12E4-3, pp.448-449 (July 12, 2007)

- Y.Cai, T.Mizumoto and Y.Naito, "Perturbation feedback method for analysing rectangular dielectric waveguides", Electronics Letters, vol.26, No.8, pp.521-523 (1990)
- Y.Cai, T.Mizumoto and Y.Naito, "New analytical method of rectangular dielectric waveguides and applications to coupled waveguide systems", Trans.IEICE Japan, vol.E 74, No.9, pp.2877-2882 (1991)
- Y.Cai, T.Mizumoto and Y.Naito, "Improved perturbation feedback method for the analysis of rectangular dielectric waveguides", J.Lightwave Technology, vol.9, No.10, pp.1231-1237 (1991)
- G.S.Pu, T.Mizumoto and Y.Naito, "Modified numerical technique for Beam Propagation Method based on the Galerkin's technique", IEICE Trans. Electron., vol.E77-C, No.3, pp.510-514 (1994)

- Y.Cai, T.Mizumoto and Y.Naito, "A simple and accurate approach for the analysis of rectangular dielectric waveguides : perturbation feedback method", 3-rd Optoelectronics Conference (OEC '90), Maskuhari, Technical Digest pp.94-95 (July, 1990)
- Y.Cai, T.Mizumoto and Y.Naito, "New analytical method of rectangular dielectric waveguides and applications to coupled waveguide systems", 3-rd Japan-China Joint Meeting on Optical Fiber Science and Electromagnetic Theory (OFSET 90), Fukuoka, EMT-90-75 (Oct., 1990)
- Y.Cai, T.Mizumoto and Y.Naito, "Rectangular waveguide analysys by equivalent guide models --- improved", Progress in Electromagnetics Research Symposium (PIERS 1991), Massachusetts, Technical Digest p.263 (July, 1991)