Masanori Koshiba

Kunimasa Saitoh, Masanori Koshiba, Shoichiro Matsuo, 2013, 2013 18th OptoElectronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS).

Hybrid-mode analysis of multilayered and multiconductor transmission lines

M. S. Alam, Masanori Koshiba, M. S. Alam, 1997 .

Transmission characteristics of laterally illuminated photonic crystal fibers

Kunimasa Saitoh, Masanori Koshiba, Takeshi Fujisawa, 2006, IEICE Electron. Express.

Crosstalk behavior of multi-core fiber with structural parameter drift in longitudinal direction

Yusuke Sasaki, Kunimasa Saitoh, Masanori Koshiba, 2011, IEICE Electron. Express.

3-Dimensional Beam Propagation Analysis of Nonlinear Optical Fibers (Special Issue on Optical Fibers and Their Applications)

Masanori Koshiba, Akira Niiyama, M. Koshiba, 1996 .

Analysis of electromagnetic waveguide bends by three‐dimensional finite element method with edge elements

Masanori Koshiba, Koichi Hirayama, Yoshio Hayashi, 1996 .

Design of all-optical XOR and AND logic gates based on multi-mode interference devices

Yuhei Ishizaka, Kunimasa Saitoh, Masanori Koshiba, 2010, 2010 10th International Conference on Laser and Fiber-Optical Networks Modeling.

Design of effectively single-mode leakage channel fibers with large mode area and low bending loss

Kunimasa Saitoh, Masanori Koshiba, Yukihiro Tsuchida, 2009, IEICE Electron. Express.

Equivalent circuit model for positive/negative reflection—type SAW reflectors

Masanori Koshiba, Seiichi Mitobe, 1989 .

Analysis of partially metal‐clad and dielectric overlay‐loaded diffused optical waveguide

Masanori Koshiba, Motohiro Suzuki, Kazuya Hayata, 1984 .

光導波路解析ソフトウェア;光導波路解析ソフトウェア;Design and Simulation of Integrated Photonic Devices.

Masanori Koshiba, 1998 .

Application of Finite Element Method to Acoustic Guidedwave Problems : Physical Acoustics I

Michio Suzuki, Hikaru Morita, Masanori Koshiba, 1981 .

Crosstalk behavior of cores in multi-core fiber under bent condition

Yusuke Sasaki, Kunimasa Saitoh, Masanori Koshiba, 2011, IEICE Electron. Express.

Simple and Efficient Adaptive Mesh Generation for Approximate Scalar Guided-Mode and Beam-Propagation Solutions

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1998 .

Numerical study of guided-wave sum-frequency generation through second-order nonlinear parametric processes

Masanori Koshiba, Kazuya Hayata, M. Koshiba, 1991 .

Comparative Assessment between Implicit and Explicit Frequency-Dependent Finite-Element Time-Domain Methods for Metallic Nanostructures Analysis

Masanori Koshiba, Hugo E. Hernandez-Figueroa, Vitaly F. Rodriguez-Esquerre, 2005 .

Erratum: Predictable and unpredictable phenomena in optical fibers for space-division/mode-division multiplexing transmission: statistical analysis of coupling and mysterious behavior of modes [IEICE Electronics Express Vol. 17 (2020) No. 15 pp. 20202001]

Masanori Koshiba, Yasuo Kokubun, M. Koshiba, 2020, IEICE Electron. Express.

Heterogeneous multi-core fibers: proposal and design principle

Kunimasa Saitoh, Masanori Koshiba, Yasuo Kokubun, 2009, IEICE Electron. Express.

Integrated-optic multi/demultiplexer for mode division multiplexed transmission

Taiji Sakamoto, Kunimasa Saitoh, Masanori Koshiba, 2014, 2014 OptoElectronics and Communication Conference and Australian Conference on Optical Fibre Technology.

A vector finite‐element analysis of complex modes in shielded microstrip lines

Masanori Koshiba, Md. Shah Alam, Yoshio Hayashi, 1993 .

Frequency‐dependent envelope finite‐element time‐domain analysis of dispersion materials

Masanori Koshiba, Hugo E. Hernandez-Figueroa, Vitaly F. Rodriguez-Esquerre, 2005 .

Fundamental Characteristics of Localized Acoustic Modes in Photonic Crystal Fibers

Kunimasa Saitoh, Masanori Koshiba, Ikumi Enomori, 2005, IEICE Trans. Electron..

Special Issue on Computational Electromagnetics

Masanori Koshiba, Hiroyoshi Ikuno, 1998 .

Noniterative beam propagation method for optical grating waveguides

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1998 .

Few-mode multicore fibre with 36 spatial modes (Three modes (LP01, LP11a, LP11b) ×12 cores)

Yusuke Sasaki, Kunimasa Saitoh, Masanori Koshiba, 2014, 2014 The European Conference on Optical Communication (ECOC).

Green Innovation and Local Social System:-Seeking for the new relationship between new scientific technology and human society in the 21st century-

Masanori Koshiba, Ko Hasegawa, 2012 .

Equivalent circuits for dielectric posts in a rectangular waveguide

Masanori Koshiba, K. Ise, 1989 .

Modal analysis of the second-harmonic electromagnetic field generated by the Cherenkov effect in optical waveguides

Masanori Koshiba, M. Koshiba, K. Hayata, 1990 .

Finite element beam propagation method for three-dimensional optical waveguide structures

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1997 .

Theoretical determination of equivalent circuit parameters for reflective SAW metallic gratings

Masanori Koshiba, Seiichi Mitobe, M. Koshiba, 1987 .

Recent Trend of Electromagnetic Theory in Advanced Technology and Society

Yasumitsu Miyazaki, Masanori Koshiba, Masashi Hayakawa, 2006 .

Coupled-Mode Equations for Interdigital Transducers for Leaky Surface Acoustic Waves

Masanori Koshiba, Koji Hasegawa, 2003 .

Numerical investigation and optimization of a photonic crystal fiber for simultaneous dispersion compensation over S + C + L wavelength bands

Kunimasa Saitoh, Masanori Koshiba, Takeshi Fujisawa, 2007 .

Analysis of anisotropic dielectric grating diffraction using the finite-element method

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1996 .

Design of single-moded holey fibers with large-mode-area and low bending losses: the significance of the ring-core region.

Kunimasa Saitoh, Masanori Koshiba, Yukihiro Tsuchida, 2007, Optics express.

Finite-element analysis of birefringence and dispersion properties in actual and idealized holey-fiber structures.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2003, Applied optics.

B-10-19 Reduction of Crosstalk by Quasi-Homogeneous Solid Multi-Core Fiber

Kunimasa Saitoh, Masanori Koshiba, K. Takenaga, 2010 .

Coupling characteristics of dual-core photonic crystal fiber couplers.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2003, Optics express.

Boundary-element analysis of plane-wave diffraction from groove-type dielectric and metallic gratings

Masanori Koshiba, Yasunori Nakata, M. Koshiba, 1990 .

Three-dimensional finite-element solution of dielectric scattering obstacles in a rectangular waveguide

Masanori Koshiba, K. Ise, M. Koshiba, 1990 .

Recent progress on multi-core fiber and few-mode fiber

Yusuke Sasaki, Kunimasa Saitoh, Masanori Koshiba, 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

High group birefringence in air-core photonic bandgap fibers.

M. S. Alam, Kunimasa Saitoh, Masanori Koshiba, 2005, Optics letters.

Design of miniaturized silicon wire and slot waveguide polarization splitterbased on a resonant tunneling.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2009, Optics express.

Dynamics of Raman soliton during supercontinuum generation near the zero-dispersion wavelength of optical fibers.

Kunimasa Saitoh, Masanori Koshiba, Samudra Roy, 2011, Optics express.

Stress analysis method for elastically anisotropic material based optical waveguides and its application to strain-induced optical waveguides

Masanori Koshiba, Yasuhide Tsuji, I. Saitoh, 1999 .

Crosstalk Analysis of Heterogeneous Multicore Fibers Using Coupled-Mode Theory

Yusuke Sasaki, Kazuhiko Aikawa, Kunimasa Saitoh, 2017, IEEE Photonics Journal.

Modal spot size of axially nonsymmetrical fibres

Masanori Koshiba, Kazuya Hayata, Michio Suzuki, 1986 .

Endlessly single-mode holey fibers: the influence of core design.

Kunimasa Saitoh, Masanori Koshiba, Yukihiro Tsuchida, 2005, Optics express.

Empirical relations for simple design of photonic crystal fibers.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2005, Optics express.

Finite-element analysis of discontinuity problem of SH modes in an elastic plate waveguide

Masanori Koshiba, M. Koshiba, Michio Suzuki, 1981 .

Wavelength division multiplexing and demultiplexing with photonic crystal waveguide couplers

Masanori Koshiba, M. Koshiba, 2001 .

Finite element beam propagation method for anisotropic optical waveguides

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1999 .

A novel approach for designing photonic crystal fiber splitters with polarization-independent propagation characteristics.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2005, Optics express.

Novel design of inherently gain-flattened discrete highly nonlinear photonic crystal fiber Raman amplifier and dispersion compensation using a single pump in C-band.

Kunimasa Saitoh, Masanori Koshiba, Takeshi Fujisawa, 2005, Optics express.

Polarization-independent optical directional coupler based on slot waveguides.

Masanori Koshiba, Takeshi Fujisawa, M. Koshiba, 2006, Optics letters.

Cerenkov third-harmonic generation in optical glass fibre

Masanori Koshiba, Kazuya Hayata, 1990 .

Hole-Assisted Lightguide Fiber - A Practical Derivative of Photonic Crystal Fiber

Masanori Koshiba, Masashi Onishi, Masayuki Nishimura, 2002 .

Multi-core fiber design and analysis

Kunimasa Saitoh, Masanori Koshiba, Shoichiro Matsuo, 2011, 2011 37th European Conference and Exhibition on Optical Communication.

Three-dimensional diffraction analysis of dielectric surface-relief gratings

Masanori Koshiba, M. Koshiba, M. Abe, 1994 .

Three-dimensional finite-element method with edge elements for electromagnetic waveguide discontinuities

Masanori Koshiba, K. Ise, M. Koshiba, 1991 .

Enhancement of the guided‐wave second‐harmonic generation in the form of Cerenkov radiation

Masanori Koshiba, Kazuya Hayata, Kazunori Yanagawa, 1990 .

Finite-element formalism for nonlinear slab-guided waves

Masanori Koshiba, Kazuya Hayata, M. Koshiba, 1988 .

Leakage loss and group velocity dispersion in air-core photonic bandgap fibers.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2003, Optics express.

A large effective area multi-core fibre with an optimised cladding thickness

Yusuke Sasaki, Kunimasa Saitoh, Masanori Koshiba, 2011 .

Analysis of lossy planar transmission lines by using a vector finite element method

M. S. Alam, Masanori Koshiba, Koichi Hirayama, 1995 .

A wide-angle beam propagation method based on a finite element scheme

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1997 .

Effective area limit of large-mode-area solid-core photonic bandgap fibers for fiber laser applications

Kunimasa Saitoh, Masanori Koshiba, Tadashi Murao, 2010 .

Multi-core hole-assisted fibers for high core density space division multiplexing

Taiji Sakamoto, Kunimasa Saitoh, Masanori Koshiba, 2010, OECC 2010 Technical Digest.

Crosstalk suppressed hole-assisted 6-core fiber with cladding diameter of 125 μm

Taiji Sakamoto, Kunimasa Saitoh, Masanori Koshiba, 2013 .

Thermooptical sensitivity analysis of highly birefringent polarimetric sensing photonic crystal fibers with elliptically elongated veins

Kunimasa Saitoh, Masanori Koshiba, N. J. Florous, 2006 .

STRESS-ANALYSIS METHOD FOR OPTICAL WAVEGUIDES COMPOSED OF ELASTICALLY ANISOTROPIC MATERIALS AND ITS APPLICATION TO STRAIN-INDUCED OPTICAL WAVEGUIDES

Kunimasa Saitoh, Masanori Koshiba, Yasuhide Tsuji, 1998 .

Finite element method using port truncation by perfectly matched layer boundary conditions for optical waveguide discontinuity problems

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 2002 .

Design aspects of multicore optical fibers for high-capacity long-haul transmission

Masanori Koshiba, M. Koshiba, 2014, Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on.

Finite element characterization of chromatic dispersion in nonlinear holey fibers.

Masanori Koshiba, Takeshi Fujisawa, M. Koshiba, 2003, Optics express.

Novel finite-element formulation without any spurious solutions for dielectric waveguides

Masanori Koshiba, Kazuya Hayata, Masashi Eguchi, 1986 .

COMBINED BEAM PROPAGATION AND FINITE ELEMENT METHOD FOR BIDIRECTIONAL OPTICAL BEAM PROPAGATION ANALYSIS

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1999 .

Dependence of crosstalk increase due to tight bend on core layout of multi-core fiber

Kunimasa Saitoh, Masanori Koshiba, Tetsuya Nakanishi, 2014, OFC 2014.

Low-loss and broadband PLC-type mode (de)multiplexer for mode-division multiplexing transmission

Taiji Sakamoto, Kunimasa Saitoh, Masanori Koshiba, 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

Ultra-flattened chromatic dispersion controllability using a defected-core photonic crystal fiber with low confinement losses.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2005, Optics express.

Design of narrow band-pass filters based on the resonant-tunneling phenomenon in multi-core photonic crystal fibers.

Kunimasa Saitoh, Masanori Koshiba, Maksim Skorobogatiy, 2005, Optics express.

Investigation of crosstalk dependencies on bending radius of heterogeneous multicore fiber

Yusuke Sasaki, Kunimasa Saitoh, Masanori Koshiba, 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

Applicability of classical optical fiber theories to holey fibers.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2004, Optics letters.

Simple evaluation of confinement losses in holey fibers

Kunimasa Saitoh, Masanori Koshiba, 2005 .

Combination of beam propagation method and finite element method for optical beam propagation analysis

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1999 .

Split-step finite-element method applied to nonlinear integrated optics

Masanori Koshiba, Kazuya Hayata, M. Koshiba, 1990 .

Full-vectorial finite element method in a cylindrical coordinate system for loss analysis of photonic wire bends.

Kunimasa Saitoh, Masanori Koshiba, Naoya Kono, 2006, Optics express.

Chromatic dispersion profile optimization of dual-concentric-core photonic crystal fibers for broadband dispersion compensation.

Kunimasa Saitoh, Masanori Koshiba, Takeshi Fujisawa, 2006, Optics express.

A time domain beam propagation method based on a finite element scheme

Masanori Koshiba, Yasuhide Tsuji, Masafumi Hikari, 1999 .

Finite-element solution of planar arbitrarily anisotropic diffused optical waveguides

Masanori Koshiba, M. Koshiba, Michio Suzuki, 1985 .

Three-mode PLC-type multi/demultiplexer for mode-division multiplexing transmission

Taiji Sakamoto, Kunimasa Saitoh, Masanori Koshiba, 2013 .

Two-mode PLC-based mode multi/demultiplexer for mode and wavelength division multiplexed transmission.

Taiji Sakamoto, Masanori Koshiba, Kyozo Tsujikawa, 2013, Optics express.

A vector finite element method with the high-order mixed-interpolation-type triangular elements for optical waveguiding problems

Masanori Koshiba, M. Koshiba, K. Hirayama, 1994 .

Recent progress in multi-core fibers for ultralarge-capacity transmission

Masanori Koshiba, M. Koshiba, 2010, OECC 2010 Technical Digest.

Nonlinear photonic crystal fibres: pushing the zero-dispersion towards the visible

Kunimasa Saitoh, Masanori Koshiba, Niels Asger Mortensen, 2006, physics/0608142.

Finite-element modeling of broad-band traveling-wave optical modulators

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1999 .

Chirosolitons: unique spatial solitons in chiral media

Masanori Koshiba, Kazuya Hayata, 1995 .

Three-dimensional finite element analysis of nonreciprocal phase shifts in magneto-photonic crystal waveguides.

Masanori Koshiba, Naoya Kono, M. Koshiba, 2005, Optics express.

Full-vectorial imaginary-distance beam propagation method based on a finite element scheme: application to photonic crystal fibers

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2002 .

Theoretical realization of holey fiber with flat chromatic dispersion and large mode area: an intriguing defected approach.

Kunimasa Saitoh, Masanori Koshiba, Nikolaos J Florous, 2006, Optics letters.

Highly nonlinear dispersion-flattened photonic crystal fibers for supercontinuum generation in a telecommunication window.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2004, Optics express.

An Analysis of Surface-Acoustic-Wave Devices Using Coupling-of-Mode Theory and Finite-Element Method

Masanori Koshiba, M. Koshiba, Kazuhiro Ohbuchi, 1991 .

Spatial polarization instabilities due to transverse effects in nonlinear guided-wave systems

Masanori Koshiba, Kazuya Hayata, M. Koshiba, 1990 .

Large-effective-area ten-core fiber with cladding diameter of about 200 μm.

Yusuke Sasaki, Kunimasa Saitoh, Masanori Koshiba, 2011, Optics letters.

Numerical simulation of guided-wave SHG light sources utilising Cerenkov radiation scheme

Masanori Koshiba, Kazuya Hayata, M. Koshiba, 1989 .

Design and characterization of single-mode holey fibers with low bending losses.

Kunimasa Saitoh, Masanori Koshiba, Yukihiro Tsuchida, 2005, Optics express.

Fluidic Sensors based on Photonic Crystal Fiber Gratings: An Emerging Technology for Realizing Ultra-Low ThermoResponsive Sensing Platforms

Kunimasa Saitoh, Masanori Koshiba, N. J. Florous, 2007 .

Combination of beam propagation method and mode expansion propagation method for bidirectional optical beam propagation analysis

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1998 .

FINITE ELEMENT BEAM PROPAGATION METHOD FOR NONLINEAR OPTICAL WAVEGUIDES

Masanori Koshiba, Yasuhide Tsuji, Takashi Yasui, 1999 .

Numerical analysis of the absorption and the refractive index change in arbitrary semiconductor quantum-well structures

Masanori Koshiba, Kazuya Hayata, Kazuhito Fujii, 1992 .

Transmission-Efficient Structures of Bent and Crossing Silicon Slot Waveguides

Yuhei Ishizaka, Kunimasa Saitoh, Masanori Koshiba, 2013, IEEE Photonics Journal.

Design of photonic band gap fibers with suppressed higher-order modes: towards the development of effectively single mode large hollow-core fiber platforms.

Kunimasa Saitoh, Masanori Koshiba, Tadashi Murao, 2006, Optics express.

Simple and efficient finite-element analysis of microwave and optical waveguides

Masanori Koshiba, M. Koshiba, K. Inoue, 1992 .

Full vectorial finite element formalism for lossy anisotropic waveguides

Masanori Koshiba, Kazuya Hayata, M. Koshiba, 1989 .

Improved Finite-Element Formulation in Terms of the Magnetic Field Vector for Dielectric Waveguides

Masanori Koshiba, M. Koshiba, K. Hayata, 1985 .

Design of Few-Mode Fibers for Mode-Division Multiplexing Transmission

Taiji Sakamoto, Kunimasa Saitoh, Masanori Koshiba, 2013, IEEE Photonics Journal.

Analytical Expression of Average Power-Coupling Coefficients for Estimating Intercore Crosstalk in Multicore Fibers

Kunimasa Saitoh, Masanori Koshiba, Shoichiro Matsuo, 2012, IEEE Photonics Journal.

All-optical logic gates based on nonlinear slot-waveguide couplers

Masanori Koshiba, Takeshi Fujisawa, M. Koshiba, 2006 .

Finite element formulation for lossy waveguides

Masanori Koshiba, Kazuya Hayata, M. Koshiba, 1988 .

Full-Vector Analysis of Photonic Crystal Fibers Using the Finite Element Method

Masanori Koshiba, M. Koshiba, 2002 .

Vectorial Finite-Element Method Without Any Spurious Solutions for Dielectric Waveguiding Problems Using Transverse Magnetic-Field Component

Masanori Koshiba, Kazuya Hayata, Masashi Eguchi, 1986 .

Raman amplification characteristics of As2Se3 photonic crystal fibers.

Kunimasa Saitoh, Masanori Koshiba, Yukihiro Tsuchida, 2008, Optics letters.

Dispersion, birefringence, and amplification characteristics of newly designed dispersion compensating hole-assisted fibers.

Kunimasa Saitoh, Masanori Koshiba, Shailendra K Varshney, 2007, Optics express.

Vectorial finite-element method without spurious solutions for dielectric waveguide problems

Masanori Koshiba, Kazuya Hayata, M. Koshiba, 1984 .

Group‐velocity‐matched second‐harmonic generation: An efficient scheme for femtosecond ultraviolet pulse generation in periodically domain‐inverted β‐BaB2O4

Masanori Koshiba, Kazuya Hayata, M. Koshiba, 1993 .

Optimization of pump spectra for gain-flattened photonic crystal fiber Raman amplifiers operating in C-band.

Kunimasa Saitoh, Masanori Koshiba, Shailendra K Varshney, 2007, Optics express.

Large-effective-area uncoupled few-mode multi-core fiber

Yusuke Sasaki, Kunimasa Saitoh, Masanori Koshiba, 2014 .

Finite element formulation for guided-wave problems using transverse electric field component

Masanori Koshiba, Kazuya Hayata, Masashi Eguchi, 1989 .

Vectorial wave analysis of dielectric waveguides for optical-integrated circuits using equivalent network approach

Masanori Koshiba, M. Suzuki, M. Koshiba, 1986 .

Time-Domain Beam Propagation Method for Nonlinear Optical Propagation Analysis and Its Application to Photonic Crystal Circuits

Masanori Koshiba, Takeshi Fujisawa, M. Koshiba, 2003 .

Full-vectorial finite element beam propagation method with perfectly matched layers for anisotropic optical waveguides

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2001 .

Modal structure of the Čerenkov second‐harmonic wave in optical fibers

Masanori Koshiba, Kazuya Hayata, T. Sugawara, 1990 .

An Analysis of Reflection Characteristics of Surface-Acoustic-Wave Gratings

Masanori Koshiba, Seiichi Mitobe, 1988 .

A finite element beam propagation method for strongly guiding and longitudinally varying optical waveguides

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1996 .

The role of artificial defects for engineering large effective mode area, flat chromatic dispersion, and low leakage losses in photonic crystal fibers: Towards high speed reconfigurable transmission platforms.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2006, Optics express.

Nonreciprocal microresonators for the miniaturization of optical waveguide isolators.

Kunimasa Saitoh, Masanori Koshiba, Naoya Kono, 2007, Optics express.

Finite element beam propagation method with perfectly matched layer boundary conditions

Masanori Koshiba, Yasuhide Tsuji, M. Koshiba, 1999 .

Detailed theoretical investigation of bending properties in solid-core photonic bandgap fibers.

Kunimasa Saitoh, Masanori Koshiba, Tadashi Murao, 2009, Optics express.

Multi-core fiber design and analysis

Kunimasa Saitoh, Masanori Koshiba, Shoichiro Matsuo, 2011, 2011 37th European Conference and Exhibition on Optical Communication.

Optical Waveguide Analysis

Masanori Koshiba, M. Koshiba, 1992 .

Design of air-guiding modified honeycomb photonic band-gap fibers for effectively singlemode operation.

Kunimasa Saitoh, Masanori Koshiba, Tadashi Murao, 2006, Optics express.

Polarization characteristics of photonic crystal fibers selectively filled with metal wires into cladding air holes.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2011, Optics express.

A design method of a fiber-based mode multi/demultiplexer for mode-division multiplexing.

Kunimasa Saitoh, Masanori Koshiba, M. Koshiba, 2010, Optics express.

Apodized photonic crystal waveguide gratings.

Kunimasa Saitoh, Masanori Koshiba, Takeshi Fujisawa, 2006, Optics express.

Stress analysis method considering piezoelectric effects and its application to static strain optic devices

Kunimasa Saitoh, Masanori Koshiba, Yasuhide Tsuji, 1999 .

Equivalent Networks for Surface Acoustic Wave Metallic Gratings

Masanori Koshiba, Seiichi Mitobe, Michio Suzuki, 1986 .

Three-dimensional beam propagation analysis of nonlinear optical fibers and optical logic gates

Masanori Koshiba, Akira Niiyama, M. Koshiba, 1998 .

Design of all-solid leakage channel fibers with large mode area and low bending loss.

Stefano Selleri, Kunimasa Saitoh, Masanori Koshiba, 2009, Optics express.

Dependence of Cladding Diameter on Inter-core Crosstalk in Heterogeneous Multi-core Fibers

Kazuhiko Aikawa, Kunimasa Saitoh, Masanori Koshiba, 2018, 2018 23rd Opto-Electronics and Communications Conference (OECC).

Optimized design method for heterogeneous trench-assisted multi-core fiber

Kunimasa Saitoh, Masanori Koshiba, Shoichiro Matsuo, 2013, 2013 18th OptoElectronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS).

Multiple resonant coupling mechanism for suppression of higher-order modes in all-solid photonic bandgap fibers with heterostructured cladding.

Kunimasa Saitoh, Masanori Koshiba, Tadashi Murao, 2011, Optics express.