ヒューレット・パッカード日本研究所

1991年4月 - 1998年9月

Analysis of Connection Loss for a GI Waveguide Based Optical Link Using the Finite Difference Beam Propagation Method 査読

Hsiang-Han Hsu, T. Ishigure, S. Nakagawa

Journal of Lightwave Technology   31 ( 12 )   2036 - 2042   2013年6月

In-situ MBE Si as passivating interlayer on GaAs for HfO2 MOSCAP’s: effect of GaAs surface reconstruction 査読

D.J. Webb, J. Fompeyrine, S. Nakagawa, A. Dimoulas, C. Rossel, M. Sousa, R. Germann, S.F. Alvarado, J.P. Locquet, C. Marchiori, H. Siegwart, A. Callegari, E. Kiewra, Y. Sun, J. De Souza, N. Hoffmann

Microelectronic Engineering   84 ( 9-10 )   2142 - 2145   2007年9月

InP-based all-epitaxial 1.3-μm VCSELs with selectively etched AlInAs apertures and Sb-based DBRs 査読

T. Asano, D. Feezell, R. Koda, M.H.M. Reddy, D.A. Buell, A.S. Huntington, E. Hall, S. Nakagawa, L.A. Coldren

IEEE Photonics Technology Letters   15 ( 10 )   1333 - 1335   2003年10月

1.55um, InP-lattice-matched VCSELs with AlGaAsSb/AlAsSb DBRs 査読

Shigeru Nakagawa, Eric Hall, Guilhem Almuneau, Jim K. Kim, David A. Buell, Herbert Kroemer, and Larry A. Coldren

IEEE Journal of Selected Topics in Quantum Electronics   vol. 7   2001年

88oC, continuous-wave operation of apertured, intracavity contacted, 1.55um vertical-cavity surface-emitting lasers 査読

Shigeru Nakagawa, Eric Hall, Guilhem Almuneau, Jim K. Kim, David A. Buell, Herbert Kroemer, and Larry A. Coldren

Applied Physics Letters   vol. 78   2001年

Selectively etched undercut apertures in AlAsSb-based VCSELs 査読

Eric Hall, Shigeru Nakagawa, Guilhem Almuneau, Jin, K. Kim, Larry A. Coldren

IEEE Photonics Technology Letters   vol. 13   2001年

RF crosstalk in multiple-wavelength vertical-cavity surface-emitting laser arrays 査読

S. Nakagawa, Syn-Yem Hu, D. Louderback, L.A. Coldren

IEEE Photonics Technology Letters   12 ( 6 )   612 - 614   2000年6月

Second-Harmonic Generation from GaP/AlP Multilayers on GaP (111) Substrates Based on Quasi-Phase Matching for the Fundamental Standing Wave 査読

Motoyuki Sato Motoyuki Sato, Hiroyuki Yaguchi Hiroyuki Yaguchi, Ichiro Shoji Ichiro Shoji, Kentaro Onabe Kentaro Onabe, Ryoichi Ito Ryoichi Ito, Yasuhiro Shiraki Yasuhiro Shiraki, Shigeru Nakagawa Shigeru Nakagawa, Norihide Yamada Norihide Yamada

Japanese Journal of Applied Physics   39 ( 4B )   L334 - L334   2000年4月

Blue vertical-cavity surface-emitting lasers based on second-harmonic generation grown on (311)B and (411)A GaAs substrates 査読

Yasuhisa Kaneko, Shigeru Nakagawa, Yoshikatsu Ichimura, Norihide Yamada, Dan E. Mars, Tetsuya Takeuchi

Journal of Applied Physics   87 ( 4 )   1597 - 1603   2000年2月

Molecular beam epitaxial growth of monolithic 1.55um vertical cavity surface emitting lasers with AlGaAsSb/AlAsSb Bragg mirrors 査読

Guilhem Almuneau, Eric Hall, Shigeru Nakagawa, Jin K. Kim, Dan Lofgreen, John, H. English, a, d Larry A. Coldren

Journal of vacuum science and technology B   vol. 18   2000年

Improved electrical and thermal properties of InP/AlGaAsSb Bragg mirrors for long-wavelength vertical cavity lasers 査読

Guilhem Almuneau, Eric Hall, and, Larry A. Coldren, Toshikazu Mukaihara, Shigeru Nakagawa

IEEE Photonics Technology Letters   vol. 12   2000年

Room temperature CW-operation of lattice-matched long-wavelength VCSELs 査読

Eric Hall, Shigeru Nakagawa, Guilhem Almuneau, Jin, K. Kim, Larry A. Coldren

Electronics Letters   vol. 36   2000年

Near-room temperature CW operation of electrically-pumped multiple-active-region 1.55um VCSELs with high differential efficiency 査読

Jin K. Kim, Shigeru Nakagawa, Eric Hall, and Larry A. Coldren

Applied Physics Letters   vol. 77   2000年

Vertical-Cavity Surface-Emitting Lasers with Stable Polarization Grown on (411)A-Oriented GaAs Substrates 査読

Yasuhisa Kaneko, Dan E. Mars, Shigeru Nakagawa, Yoshikatsu Ichimura, Norihide Yamada

Japanese Journal of Applied Physics   38 ( 8A )   L864 - L864   1999年8月

Modulation and free-space link characteristics of monolithically integrated vertical-cavity lasers and photodetectors with microlenses 査読

D.A. Louderback, O. Sjolund, E.R. Hegblom, S. Nakagawa, J. Ko, L.A. Coldren

IEEE Journal of Selected Topics in Quantum Electronics   5 ( 2 )   157 - 165   1999年

Quantum-confined Stark effect in strained GaInN quantum wells on sapphire (0 0 0 1) 査読

Tetsuya Takeuchi, Shigetoshi Sota, Hiromitsu Sakai, Hiroshi Amanoa, Isamu Akasaki, Yawara Kaneko, Shigeru Nakagawa, Yishifumi Yamaoka, Norihide Yamada

Journal of Crystal Growth   189-190   616 - 620   1998年6月

Determination of piezoelectric fields in strained GaInN quantum wells using the quantum confined Stark effects 査読

Tetsuya Takeuchi, Hiroshi Amano, Isamu Akasaki, Yawara Kaneko, Shigeru Nakagawa, Yoshifumi Yamaoka, Norihide Yamada

Applied Physics Letters   vol. 73   1998年

Growth of vertical cavity surface emitting laser material on (311)B GaAs by MBE 査読

Dan E. Mars, Yasuhisa Kaneko, Shigeru Nakagawa, Tetsuya Takeuchi, Norihide Yamada

Journal of Crystal Growth   vol. 175-176   1997年

Second-Harmonic Generation in Vertical-Cavity Surface-Emitting Laser 査読

Norihide Yamada, Yoshikatsu Ichimura, Shigeru Nakagawa, Yasuhisa Kaneko, Tetsuya Takeuchi Tetsuya Takeuchi, Nobuo Mikoshiba Nobuo Mikoshiba

Japanese Journal of Applied Physics   35 ( 5R )   2659 - 2659   1996年5月

Contiuous-wave operation of a blue vertical-cavity surface-emitting laser based on second-harmonic generation 査読

Norihide Yamada, Yasuhisa Kaneko, Shigeru Nakagawa, Dan E. Mars, Tetsuya Takeuchi, Nobuo Mikoshiba

Applied Physics Letters   vol. 68   1996年

Generating short-wavelength light using a vertical-cavity laser structure

Shigeru Nakagawa, Danny E. Mars, Norihide Yamada

HEWLETT PACKARD JOURNAL   46   72 - 75   1995年2月

InGaAs/GaAs vertical-cavity surface-emitting lasers on (311)B GaAs substrate 査読

Yasuhisa Kaneko, Shigeru Nakagawa, Tetsuya Takeuchi, Dan E. Mars, Norihide Yamada, Nobuo Mikoshiba

Electronics Letters   vol. 31   1995年

Second-harmonic generation from GaAs/AlAs vertical cavity 査読

Shigeru Nakagawa, Norihide Yamada, Nobuo Mikoshiba, Dan E. Mars

Applied Physics Letters   vol. 66   1995年

Micropump and sample-injector for integrated chemical analyzing systems 査読

Shuichi Shoji, Shigeru Nakagawa, Masayoshi Esashi

Sensors and Actuators A: Physical   vol. 21   1990年

Exploiting Heterogeneous Units for Reservoir Computing with Simple Architecture.

Gouhei Tanaka, Ryosho Nakane, Toshiyuki Yamane, Daiju Nakano, Seiji Takeda, Shigeru Nakagawa, Akira Hirose 0001

Neural Information Processing - 23rd International Conference  2016年 

High-bandwidth optical I/O link with optical MCM.

Hsiang-Han Hsu, Masao Tokunari, Shigeru Nakagawa

Optical Fiber Communications Conference and Exhibition(OFC)  2015年  IEEE

Low power CMOS-driven 1060 nm multimode optical link

Jean Benoit Héroux, Tomofumi Kise, Masaki Funabashi, Toyohiro Aoki, Clint Schow, Alexander V. Rylyakov, Shigeru Nakagawa

Optical Fiber Communication Conference  2014年  OSA

Low power CMOS-driven 1060 nm multimode optical link.

Jean Benoit Héroux, Tomofumi Kise, Masaki Funabashi, Toyohiro Aoki, Clint Schow, Alexander V. Rylyakov, Shigeru Nakagawa

Optical Fiber Communications Conference and Exhibition(OFC)  2014年  IEEE

CI-2-5 サーバー、HPCに実用化される光インターコネクト(CI-2.基礎研究から実用化に至る死の谷越えの視点からみた光デバイスの課題,依頼シンポジウム,ソサイエティ企画) 招待

中川 茂

電子情報通信学会ソサイエティ大会講演論文集  2012年8月  一般社団法人電子情報通信学会

C-3-69 高密度光マルチチップモジュール(光インターコネクション・アクティブモジュール,C-3.光エレクトロニクス,一般セッション) 招待

中川 茂

電子情報通信学会ソサイエティ大会講演論文集  2012年8月  一般社団法人電子情報通信学会

Link power budget advantage in GI-core polymer optical waveguide link for optical printed circuit boards

Sho Yakabe, Takaaki Ishigure, Shigeru Nakagawa

SPIE Proceedings  2012年2月  SPIE

Characterization and analysis of graded index optical waveguides for the realization of low-power, high-density, and high-speed optical link

Hsiang-Han Hsu, Takaaki Ishigure, Shigeru Nakagawa

SPIE Proceedings  2012年2月  SPIE

Link Power Budget Advantage of GI-core Polymer Optical Waveguide for Waveguide-based Optical Link

Sho Yakabe, Takaaki Ishigure, Shigeru Nakagawa

Optical Fiber Communication Conference  2012年  OSA

「第8回光・電子集積技術業績賞（林厳雄賞）受賞記念講演」高性能コンピューターを実現する光インターコネクト技術 招待

中川 茂

応用物理学会学術講演会講演予稿集  2011年8月  公益社団法人 応用物理学会

持続可能な世界を支える光インターコネクト技術—特集 第120回記念微小光学研究会 「微小光学30年とこれからの30年」より 招待

中川 茂

O plus E : Optics + electronics  2011年8月  東京 : アドコム・メディア

「第8回光・電子集積技術業績集（林厳雄賞）受賞記念講演」高性能コンピューターを実現する光インターコネクト技術 招待

中川 茂

応用物理学会学術講演会講演予稿集  2011年3月  公益社団法人 応用物理学会

20 Gbps optical link with high-efficiency 1060 nm VCSEL

Jean Benoit Héroux, Keishi Takaki, Masao Tokunari, Shigeru Nakagawa

SPIE Proceedings  2011年2月  SPIE

光インタコネクト技術—Optical interconnect technology 招待

中川 茂

電子情報通信学会誌 = The journal of the Institute of Electronics, Information and Communication Engineers  2010年12月  東京 : 電子情報通信学会

サーバーの低消費電力化に向けた光インターコネクト—Optical interconnects for low-power servers—特集 ネットワークの省エネ化を実現する光技術 招待

中川 茂

Optronics : 光技術コーディネートジャーナル  2010年1月  東京 : オプトロニクス社

Low power optical interconnect at 10 Gbps with high efficiency 1060nm VCSEL

Jean Benoit Héroux, Masao Tokunari, Keishi Takaki, Shigeru Nakagawa

Conference on Lasers and Electro-Optics 2010  2010年  OSA

High-bandwidth, chip-based optical interconnects on waveguide-integrated SLC for optical off-chip I/O

Shigeru Nakagawa, Yoichi Taira, Hidetoshi Numata, Kaoru Kobayashi, Kenji Terada, Masahiro Fukui

2009 59th Electronic Components and Technology Conference  2009年5月  IEEE

CS-6-2 光インターコネクトによるコンピューティング・システムの低電力化(CS-6.情報通信分野における省エネルギー光デバイスの現状と将来,シンポジウムセッション) 招待

中川 茂

電子情報通信学会ソサイエティ大会講演論文集  2008年9月  一般社団法人電子情報通信学会

C-4-9 VCSELとCMOSドライバを用いた低電力インターコネクト送信器(C-4.レーザ・量子エレクトロニクス,一般セッション) 招待

中川 茂

電子情報通信学会ソサイエティ大会講演論文集  2008年9月  一般社団法人電子情報通信学会

High-density optical interconnect exploiting build-up waveguide-on-SLC board

Shigeru Nakagawa, Yoichi Taira, Hidetoshi Numata, Kaoru Kobayashi, Kenji Terada, Yutaka Tsukada

2008 58th Electronic Components and Technology Conference  2008年5月  IEEE

1.5mW/Gbps Low Power Optical Interconnect Transmitter Exploiting High-Efficiency VCSEL and CMOS Driver

Shigeru Nakagawa, Daniel Kuchta, Clint Schow, Richard John, Larry A. Coldren, Yu-Chia Chang

OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference  2008年2月  IEEE

コンピュータへの光インターコネクションの適用 招待

中川茂

2007年エレクトロニクス実装学界最先端実装技術シンポジウム予稿集 (5月31日)  2007年 

コンピューティング・システム用光インターコネクション 招待

中川 茂

エレクトロニクス実装学術講演大会講演論文集  2007年  一般社団法人エレクトロニクス実装学会

Compact 10Gbps InP-Based Waveguide Modulator 招待

S. Nakagawa, H. Soda

2005 Pacific Rim Conference on Lasers & Electro-Optics  2005年7月  IEEE

Phase noise of widely-tunable SG-DBR laser

S. Nakagawa, G. Fish, A. Dahl, P. Koh, C. Schow, M. Mack, L. Wang, R. Yu

OFC 2003 Optical Fiber Communications Conference, 2003.  2003年  IEEE

Widely tunable electroabsorption-modulated sampled-grating DBR laser transmitter

Y.A. Akulova, G.A. Fish, Ping-Chiek Koh, C.L. Schow, P. Kozodoy, A.P. Dahl, S. Nakagawa, M.C. Larson, M.P. Mack, T.A. Strand, C.W. Coldren, E. Hegblom, S.K. Penniman, T. Wipiejewski, L.A. Coldren

IEEE Journal of Selected Topics in Quantum Electronics  2002年11月  Institute of Electrical and Electronics Engineers (IEEE)

Current status of epitaxial 1.31-1.55 μm VCSELs on InP

M.H.M. Reddy, D.A. Buell, A.S. Huntington, R. Koda, D. Freezell, T. Asano, J.K. Jim, E. Hall, S. Nakagawa, L.A. Coldren

IEEE/LEOS Summer Topi All-Optical Networking: Existing and Emerging Architecture and Applications/Dynamic Enablers of Next-Generation Optical Communications Systems/Fast Optical Processing in Optical Transmission/VCSEL and Microcavity Lasers.  2002年7月  IEEE

Widely-tunable electroabsorption-modulated sampled grating DBR laser integrated with semiconductor optical amplifier

Y.A. Akulova, C. Schow, A. Karim, S. Nakagawa, P. Kozodoy, G.A. Fish, J. DeFranco, A. Dahl, M. Larson, T. Wipiejewski, D. Pavinski, T. Butrie, L.A. Coldren

Optical Fiber Communication Conference and Exhibit  2002年3月  Opt Soc. America

InP-based 1310-1550 nm lattice-matched VCSELs

D.A. Buell, A.S. Huntington, R. Koda, E. Hall, S. Nakagawa, M. Reddy, L.A. Coldren

LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242)  2001年11月  IEEE

Advances in long-wavelength single-mode VCSELs and packaging approaches for single-mode fiber applications 招待

L.A. Coldren, E. Hall, S. Nakagawa

2001 Proceedings. 51st Electronic Components and Technology Conference (Cat. No.01CH37220)  2001年5月  IEEE

Bipolar cascade 1.55 μm VCSELs with >1 differential quantum efficiency and CW operation

J.K. Kim, E. Hall, S. Nakagawa, A. Huntington, L.A. Coldren

Conference Digest. 2000 IEEE 17th International Semiconductor Laser Conference. (Cat. No.00CH37092)  2000年9月  IEEE

Long-wavelength VCSELs with AlGaAsSb/AlAsSb Bragg mirrors lattice-matched on InP substrates</title>

Guilhem Almuneau, Eric M. Hall, Shigeru Nakagawa, Jin K. Kim, Larry A. Coldren

SPIE Proceedings  2000年5月  SPIE

Flip-chip bonded, back-emitting, microlensed arrays of monolithic vertical cavity lasers and resonant photodetectors 招待

L.A. Coldren, O. Sjolund, D.A. Louderback, S. Nakagawa, E.R. Hegblom

1999 Proceedings. 49th Electronic Components and Technology Conference (Cat. No.99CH36299)  1999年6月  IEEE

Vertical Cavity Lasers with Large Bandwidths at Low Currents for Dense Free-Space Optical Interconnects

D. A. Louderback, O. Sjölund, E. R. Hegblom, S. Nakagawa, J. Ko, L. A. Coldren

Optics in Computing  1999年  OSA

Free-Space Optical Interconnect Using Flip-Chip Bonded, Microlensed Arrays of Monolithic Vertical Cavity Lasers and Resonant Photodetectors

O. Sjölund, D. A. Louderback, E. R. Hegblom, S. Nakagawa, J. Ko, L. A. Coldren

Optics in Computing  1999年  OSA

Progress on long wavelength VCSEL 招待

S. Nakagawa, E. Hall, L.A. Coldren

IEEE LEOS Summer Topical Meetings  2001年7月 

Long-wavelength VCSELs with AlGaAsSb DBRs 招待

Shigeru Nakagawa, Eric M. Hall, Larry A. Coldren

International Symposium on the Convergence of IT and Communications  2001年11月 

1.55-um, InP-lattice-matched VCSELs operating at RT under CW

S. Nakagawa, E.M. Hall, G Almuneau, J.K. Kim, H. Kroemer, L.A. Coldren

IEEE 17th International Semiconductor Laser Conference  2000年9月 

Integrated fluid control systems on a silicon wafer

Shigeru Nakagawa, Shuichi Shoji, Masayoshi Esashi

1st International Conference on Micro Electro, Opto, Mechanic Systems and Components  1990年9月 

A micro chemical analyzing system integrated on a silicon wafer

Shigeru Nakagawa, Shuichi Shoji, Masayoshi Esashi

IEEE Micro Electro Mechanical Systems  1990年2月 

1.55um, double-intracavity contacted, InP-lattice-matched VCSELs

S. Nakagawa, E. Hall, G. Almuneau, J.K. Kim, D.A. Buell, H. Kroemer, L.A. Coldren

IEEE 13th Lasers and Electro-Optics Society Annual Meeting  2000年11月 

Recent developments in long-wavelength VCSELs 招待

S. Nakagawa, E. Hall, L. A. Coldren

Integrated Photonics Research 2001  2001年6月 

Optical interconnects for high-performance computing and data centers 招待

Shigeru Nakagawa

2011 Asia Communications and Photonics Conference  2011年11月 

Systems and subsystems requirements 招待

Shigeru Nakagawa

International Semiconductor Laser Conference 2010  2010年9月 

High-density, low-power optical interconnects for computing systems 招待

Shigeru Nakagawa

IEEE Photonics Society Summer Topicals 2010  2010年7月 

Chip-level optical I/O for FPGA on optical substrate 招待

Shigeru Nakagawa

Photonics West 2010  2010年1月 

Low-power, high-bandwidth optical interconnects for computing systems 招待

Shigeru Nakagawa

2009 Asia Communications and Photonics Conference and Exhibition  2009年11月 

スーパーコンピューターで活躍する光技術 招待

中川 茂

平成23年度光産業技術シンポジウム  2012年2月 

Complex-valued neural networks to realize energy-efficient neural networks including reservoir computing

Akira Hirose, Seiji Takeda, Toshiyuki Yamane, Daiju Nakano, Shigeru Nakagawa, Ryosho Nakane, Gouhei Tanaka

International Symposium on Nonlinear Theory and Its Applications  2017年12月 

未来のコンピューターを実現するフォトニクス 招待

中川 茂

電子情報通信学会総合大会  2023年3月 

New Era of Computingを実現する光技術 招待

中川 茂

日本学術会議 先端フォトニクスシンポジウム  2013年4月 

Optical interconnect for current and future computers 招待

Shigeru Nakagawa

CLEO-Pacific Rim 2013  2013年6月 

High-density optical multi-chip module on waveguide-integrated carrier 招待

Shigeru Nakagawa

OptoElectroincs and Communications Conference and Photonics in Switching  2013年6月 

Nonlinear dynamics of memristive networks and its application to reservoir computing

Gouhei Tanaka, Ryosho Nakane, Toshiyuki Yamane, Seiji Takeda, Daiju Nakano, Shigeru Nakagawa, Akira Hirose

International Symposium on Nonlinear Theory and Its Applications  2017年12月 

バレートポロジーに基づく円偏光生成器の検討

林 文博, 張 成昆, 吉見 拓展, 甲斐 航, 雨宮 智宏, 太田 泰友, 岩本 敏, 中川 茂

第85回応用物理学会秋季学術講演会  2024年9月 

SiCバナジウム中心に基づく通信波長帯量子光源に向けたナノビーム光共振器の設計

林 文博, 中川 茂, 西山 伸彦

第86回応用物理学会秋季学術講演会  2025年9月 

On-chip circular polarization generators using valley photonic crystals

Wataru Kai, Wenbo Lin, Chengkun Zhang, Hironobu Yoshimi, Tomohiro Amemiya, Yasumoto Ota, Satoshi Iwamoto, Shigeru Nakagawa

Conference on Lasers and Electro-Optics  2025年5月 

Intracavity-contact, quantum-dot vertical microcavities with resonant tunneling injection for electrically-driven indistinguishable single-photon sources

Tomohiro Kitamura, Ryohei Yamaguchi, Tomoya Taguchi, Wenbo Lin, Satoshi Iwamoto, Yasuhiko Arakawa, Shigeru Nakagawa

Conference on Lasers and Electro-Optics  2025年5月 

バレートポロジーを活用した円偏光生成器の作製と評価

甲斐 航, 林 文博, 張 成昆, 吉見 拓展, 雨宮 智宏, 太田 泰友, 岩本 敏, 中川茂

第72回応用物理学会春季学術講演会  2025年3月 

垂直微小共振器量子ドット単一光子源のための共鳴トンネル注入の研究

喜多村 友大, 山口 凌平, 田口 朋弥, 林 博文, 岩本 敏, 荒川 泰彦, 中川 茂

第72回応用物理学会春季学術講演会  2025年3月 

Method of aperturing vertical-cavity surface-emitting lasers (VCSELs)

Larry A. Coldren, Eric M. Hall, Shigeru Nakagawa, Guilhem Almuneau

Double intracavity contacted long-wavelength VCSELs and method of fabricating same

Eric M. Hall, Shigeru Nakagawa, Larry A. Coldren

Double intracavity contacted long-wavelength VCSELs

Larry A. Coldren, Eric M. Hall, Shigeru Nakagawa

Contact scheme for intracavity-contacted vertical-cavity surface-emitting laser

Larry A. Coldren, Eric M. Hall, Shigeru Nakagawa

Heat spreading layers for vertical cavity surface emitting lasers

Larry A. Coldren, Eric M. Hall, Shigeru Nakagawa

Wavelength monitor using hybric approach

Douglas M. Baney, Norihide Yamada, Satoshi Watanabe, Shigeru Nakagawa, Yoshikatsu Ichimura

Multilayer film structure and vertical cavity surface emitting lasers

Shigeru Nakagawa

単一光子源装置およびその製造方法

中川 茂, 林 文博, 喜多村 友大

光デバイスおよびその製造方法

中川 茂

Optical device

Shigeru Nakagawa, Tomohiro Amemiya

Single photon source device

Shigeru Nakagawa

Optical module and method of manufacturing optical module

Shigeru Nakagawa, Yoichi Taira, Masao Tokunari

Optical modules for wavelength multiplexing

Shigeru Nakagawa, Yoichi Taira, Masao Tokunari

Optical module and method for manufacturing optical module

Shigeru Nakagawa, Yoichi Taira, Masao Tokunari

Connector for multilayered optical waveguide

Shigeru Nakagawa, Hidetoshi Numata

Optical device and manufacturing method thereof

Shigeru Nakagawa, Seiji Takeda

Optical connecting method

Shigeru Nakagawa, Hidetoshi Numata, Yoichi Taira

Efficient optical (light) coupling

Hsiang Han Hsu, Shigeru Nakagawa

Optical device, optical connector assembly, and optical connecting method

Shigeru Nakagawa, Hidetoshi Numata, Yoichi Taira

Optical device and manufacturing method thereof

Shigeru Nakagawa, Seiji Takeda

Optical modules for wavelength multiplexing

Shigeru Nakagawa, Yoichi Taira, Masao Tokunari

Optical module and method for manufacturing optical module

Shigeru Nakagawa, Yoichi Taira, Masao Tokunari

Connector for multilayered optical waveguide

Shigeru Nakagawa, Hidetoshi Numata

Method of manufacturing optical coupling element, optical transmission substrate, optical coupling component, coupling method, and optical interconnect system

Shigeru Nakagawa, Hidetoshi Numata, Kuniaki Sueoka, Yoichi Taira

Method of manufacturing optical coupling element, optical transmission substrate, optical coupling component, coupling method, and optical interconnect system

Shigeru Nakagawa, Hidetoshi Numata, Kuniaki Sueoka, Yoichi Taira

Surface emitting laser and manufacturing method thereof

Shigeru Nakagawa

VCSEL for high speed lower power optical link

Shigeru Nakagawa

III-nitride semiconductor light emitting device having a silver p-contact

You Kondoh, Satoshi Watanabe, Yawara Kaneko, Shigeru Nakagawa, Norihide Yamada

Optical module and optical communication system

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