Search Results - "FUJISAWA TAKESHI" :: K.UTB vyhledávací portál | TBU Library Retrieval Portal

Low-loss, compact, and fabrication-tolerant Si-wire 90° waveguide bend using clothoid and normal curves for large scale photonic integrated circuits

Low-loss, compact, and fabrication-tolerant Si-wire 90° waveguide bend using clothoid and normal curves for large scale photonic integrated circuits

by Fujisawa, Takeshi, Makino, Shuntaro, Sato, Takanori, Saitoh, Kunimasa
Published in Optics express (17.04.2017)

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Journal Article

Arbitrary polarization and orbital angular momentum generation based on spontaneously broken degeneracy in helically twisted ring-core photonic crystal fibers

Arbitrary polarization and orbital angular momentum generation based on spontaneously broken degeneracy in helically twisted ring-core photonic crystal fibers

by Fujisawa, Takeshi, Saitoh, Kunimasa
Published in Optics express (27.09.2021)

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Journal Article

Arbitrary higher-order optical spatial state generation by using spontaneously broken degeneracy modes in helically twisted ring-core hole assisted fibers

Arbitrary higher-order optical spatial state generation by using spontaneously broken degeneracy modes in helically twisted ring-core hole assisted fibers

by Fujisawa, Takeshi, Saitoh, Kunimasa
Published in Optics express (04.07.2022)

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Journal Article

Off-axis core transmission characteristics of helically twisted photonic crystal fibers

Off-axis core transmission characteristics of helically twisted photonic crystal fibers

by Fujisawa, Takeshi, Saitoh, Kunimasa
Published in Optics letters (15.10.2018)

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Journal Article

Broadband and compact silicon mode converter designed using a wavefront matching method

Broadband and compact silicon mode converter designed using a wavefront matching method

by Sawada, Yusuke, Fujisawa, Takeshi, Saitoh, Kunimasa
Published in Optics express (07.12.2020)

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Journal Article

Broadband silicon four-mode multi/demultiplexer designed by a wavefront matching method

Broadband silicon four-mode multi/demultiplexer designed by a wavefront matching method

by Sawada, Yusuke, Fujisawa, Takeshi, Sato, Takanori, Saitoh, Kunimasa
Published in Optics express (16.08.2021)

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Journal Article

The Effect of Core Offset on the Mode Converting Characteristics in Twisted Single Mode Fibers

The Effect of Core Offset on the Mode Converting Characteristics in Twisted Single Mode Fibers

by Nakano, Sota, Fujisawa, Takeshi, Saitoh, Kunimasa
Published in Journal of lightwave technology (01.11.2019)

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Journal Article

Group delay spread analysis of strongly coupled 3-core fibers: an effect of bending and twisting

Group delay spread analysis of strongly coupled 3-core fibers: an effect of bending and twisting

by Fujisawa, Takeshi, Saitoh, Kunimasa
Published in Optics express (02.05.2016)

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Journal Article

A Novel Algorithm of Wavefront-Matching Method for Stable and Efficient Design of Si Waveguides

A Novel Algorithm of Wavefront-Matching Method for Stable and Efficient Design of Si Waveguides

by Sawada, Yusuke, Fujisawa, Takeshi, Sato, Takanori, Saitoh, Kunimasa
Published in IEEE photonics technology letters (01.04.2022)

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Journal Article

Development of the Wavefront Matching Method Based on the 3-D Finite-Element Method and Its Application to Si-wire Mode Converters

Development of the Wavefront Matching Method Based on the 3-D Finite-Element Method and Its Application to Si-wire Mode Converters

by Sawada, Yusuke, Sato, Takanori, Fujisawa, Takeshi, Saitoh, Kunimasa
Published in Journal of lightwave technology (01.09.2018)

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Journal Article

Full-Vector Finite-Element Beam Propagation Method for Helicoidal Waveguides and Its Application to Twisted Photonic Crystal Fibers

Full-Vector Finite-Element Beam Propagation Method for Helicoidal Waveguides and Its Application to Twisted Photonic Crystal Fibers

by Fujisawa, Takeshi, Sato, Takanori, Saitoh, Kunimasa
Published in Journal of lightwave technology (15.07.2017)

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Journal Article

Optimum index profile of few-mode coupled multicore fibers for reducing the group delay spread

by Yoshida, Kazuki, Fujisawa, Takeshi, Sato, Takanori, Saitoh, Kunimasa
Published in Optics express (27.05.2019)

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Journal Article

Wavefront Matching Method Based on Full-Vector Finite-Element Beam Propagation Method for Polarization Control Devices

Wavefront Matching Method Based on Full-Vector Finite-Element Beam Propagation Method for Polarization Control Devices

by Makino, Shuntaro, Fujisawa, Takeshi, Saitoh, Kunimasa
Published in Journal of lightwave technology (15.07.2017)

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Journal Article

Design of silica-PLC LP11 mode rotator based on adiabatic mode conversion

Design of silica-PLC LP11 mode rotator based on adiabatic mode conversion

by Sato, Takanori, Fujisawa, Takeshi, Wada, Masaki, Mori, Takayoshi, Sakamoto, Taiji, Imada, Ryota, Matsui, Takashi, Nakajima, Kazuhide, Saitoh, Kunimasa
Published in Optics express (17.07.2023)

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Journal Article

Quantum-Confined Stark Effect Analysis of GeSn/SiGeSn Quantum Wells for Mid-Infrared Si-Based Electroabsorption Devices Based on Many-Body Theory

Quantum-Confined Stark Effect Analysis of GeSn/SiGeSn Quantum Wells for Mid-Infrared Si-Based Electroabsorption Devices Based on Many-Body Theory

by Fujisawa, Takeshi, Saitoh, Kunimasa
Published in IEEE journal of quantum electronics (01.11.2015)

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Journal Article

Design of small mode-dependent-loss scrambling-type mode (de)multiplexer based on PLC

Design of small mode-dependent-loss scrambling-type mode (de)multiplexer based on PLC

by Shirata, Motoki, Fujisawa, Takeshi, Sakamoto, Taiji, Matsui, Takashi, Nakajima, Kazuhide, Saitoh, Kunimasa
Published in Optics express (30.03.2020)

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Journal Article

Coiling Size Dependence of Group Delay Spread in Coupled Multicore Fibers Without Intentional Twisting

Coiling Size Dependence of Group Delay Spread in Coupled Multicore Fibers Without Intentional Twisting

by Saitoh, Kunimasa, Fujisawa, Takeshi, Sato, Takanori
Published in Journal of lightwave technology (15.10.2017)

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Journal Article

Material Gain Analysis of GeSn/SiGeSn Quantum Wells for Mid-Infrared Si-Based Light Sources Based on Many-Body Theory

Material Gain Analysis of GeSn/SiGeSn Quantum Wells for Mid-Infrared Si-Based Light Sources Based on Many-Body Theory

by Fujisawa, Takeshi, Saitoh, Kunimasa
Published in IEEE journal of quantum electronics (01.05.2015)

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Journal Article

Eight-Channel Reflection-type Transversal Filter for Compact and Easy-to-Fabricate InP-Based Optical Multiplexer

Eight-Channel Reflection-type Transversal Filter for Compact and Easy-to-Fabricate InP-Based Optical Multiplexer

by Ueda, Yuta, Fujisawa, Takeshi, Kohtoku, Masaki
Published in Journal of lightwave technology (01.06.2016)

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Journal Article

Errata to "Full-Vector Finite-Element Beam Propagation Method for Helicoidal Waveguides and its Application to Twisted Photonic Crystal Fibers" [Jul 17 2894-2901]

Errata to "Full-Vector Finite-Element Beam Propagation Method for Helicoidal Waveguides and its Application to Twisted Photonic Crystal Fibers" [Jul 17 2894-2901]

by Fujisawa, Takeshi, Sato, Takanori, Saitoh, Kunimasa
Published in Journal of lightwave technology (15.09.2018)

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