Fumi Nakamura - IEEE Xplore Author Profile
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Fumi Nakamura

Also published under: F. Nakamura

Publications
24
Citations
61
Publications by Year
20192025
Co-Authors:
Show All Co-Authors (60)
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Fumi Nakamura

Also published under: F. Nakamura

Affiliation

National Institute of Advanced Industrial Science and Technology (AIST)
Tsukuba
Ibaraki, Japan

Publication Topics

Biography

Fumi Nakamura (Member, IEEE) received the B.S., M.S., and Ph.D. degrees in electronic and electrical engineering from Keio University, Tokyo, Japan, in 2017, 2018, and 2021, respectively. Since 2021, she has been with the National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan. Her research focuses on co-packaged optics technologies using silicon photonics.(Based on document published on 5 June 2023).
Publications
24
Citations
61
Publications by Year
20192025
Co-Authors:
Show All Co-Authors (60)
Author's Published Works

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High-Power Stability and Reliability of Polymer Optical Waveguide for Co-Packaged Optics

Satoshi Suda;Akihiro Noriki;Haruhiko Kuwatsuka;Fumi Nakamura;Yuki Atsumi;Takayuki Kurosu;Tadashi Murao;Takeru Amano

Journal of Lightwave Technology
Year: 2025 | Early Access Article |
This paper explores the fundamental optical characteristics and high-power handling capabilities of single-mode polymer waveguides fabricated on glass-epoxy substrates for co-packaged optics (CPO) utilizing external laser sources (ELS). The waveguides exhibit low polarization-dependent loss (PDL) of less than 0.5 dB and low differential group delay (DGD) of less than 0.2 ps in the O-band, along wi...Show More

High-Power Stability and Reliability of Polymer Optical Waveguide for Co-Packaged Optics

Satoshi Suda;Akihiro Noriki;Haruhiko Kuwatsuka;Fumi Nakamura;Yuki Atsumi;Takayuki Kurosu;Tadashi Murao;Takeru Amano

Year: 2025 | Early Access Article |

Ultra-Fast Self-Adaptive Phase-Error Calibration for Dual MZI-based Silicon Photonic Switch Fabric

Satoshi Suda;Hiroyuki Matsuura;Keijiro Suzuki;Kazuhiro Ikeda;Shu Namiki;Fumi Nakamura;Akihiro Noriki;Tadashi Murao;Takeru Amano

ECOC 2024; 50th European Conference on Optical Communication
Year: 2024 | Conference Paper |
Fully automatic phase-error calibration across a 256 dual Mach-Zehnder-interferometers-based 8×8 non-blocking silicon photonic switch fabric with polarization diversity was demonstrated. We achieve an ultra-fast and highly accurate calibration by only sampling 3.6 measurement points for one switch state, close to the theoretical limit of 3.Show More

Ultra-Fast Self-Adaptive Phase-Error Calibration for Dual MZI-based Silicon Photonic Switch Fabric

Satoshi Suda;Hiroyuki Matsuura;Keijiro Suzuki;Kazuhiro Ikeda;Shu Namiki;Fumi Nakamura;Akihiro Noriki;Tadashi Murao;Takeru Amano

Year: 2024 | Conference Paper |

Thermal Analysis of Reflow Process for PIC-Embedded Package Substrate with 2.3D RDL Interposer for Co-Packaged Optics

Akihiro Noriki;Hirotaka Uemura;Haruhiko Kuwatsuka;Naoki Matsui;Reona Motoji;Dan Maeda;Tomoya Sugita;Fumi Nakamura;Takeru Amano

2024 International 3D Systems Integration Conference (3DIC)
Year: 2024 | Conference Paper |
Toward a next generation co-packaged optics (CPO), we have worked on a novel package substrate in which photonics integrated circuits (PICs) are embedded. The substrate can be provided as known good package substrate with optoelectronic conversion function and can be assembled in the same condition as conventional package substrates. In addition, the substrate realizes high-density optical assembl...Show More

Thermal Analysis of Reflow Process for PIC-Embedded Package Substrate with 2.3D RDL Interposer for Co-Packaged Optics

Akihiro Noriki;Hirotaka Uemura;Haruhiko Kuwatsuka;Naoki Matsui;Reona Motoji;Dan Maeda;Tomoya Sugita;Fumi Nakamura;Takeru Amano

Year: 2024 | Conference Paper |

High-Capacity Transmission with Single External Laser Source and Polymer-Based Splitters for Co-Packaged Optics

Satoshi Suda;Md Omar Faruk Rasel;Takayuki Kurosu;Akihiro Noriki;Fumi Nakamura;Takeru Amano

2024 Conference on Lasers and Electro-Optics (CLEO)
Year: 2024 | Conference Paper |
We demonstrated high-capacity optical transmission using a polymer-based 1×4 splitter and a single external laser source (ELS) with an extremely high power of +20 dBm per channel, potentially achieving a bandwidth of 3.2 Tbps.Show More

High-Capacity Transmission with Single External Laser Source and Polymer-Based Splitters for Co-Packaged Optics

Satoshi Suda;Md Omar Faruk Rasel;Takayuki Kurosu;Akihiro Noriki;Fumi Nakamura;Takeru Amano

Year: 2024 | Conference Paper |

Demonstration of Thermal Characteristics of 3D Mirror-Based Optical Link for Co-Packaged Optics

Fumi Nakamura;Satoshi Suda;Takayuki Kurosu;Yasuhiro Ibusuki;Akihiro Noriki;Takeru Amano

2024 Conference on Lasers and Electro-Optics (CLEO)
Year: 2024 | Conference Paper |
The thermal tolerance of 3D mirror-based polymer optical link for co-packaged optics was demonstrated by both multi-physical analysis and experiment. The thermal-dependent difference of average insertion loss measured in the full O-band was 0.92 dB.Show More

Demonstration of Thermal Characteristics of 3D Mirror-Based Optical Link for Co-Packaged Optics

Fumi Nakamura;Satoshi Suda;Takayuki Kurosu;Yasuhiro Ibusuki;Akihiro Noriki;Takeru Amano

Year: 2024 | Conference Paper |

Investigation of Polymer Waveguide Splitters for Co-packaged Optics using External Laser Sources

Md Omar Faruk Rasel;Satoshi Suda;Akihiro Noriki;Fumi Nakamura;Takeru Amano

2024 Conference on Lasers and Electro-Optics (CLEO)
Year: 2024 | Conference Paper |
We present polymer-based 1 ×4 Y-splitters with tapered and S-bend waveguides on the glass-epoxy substrate and characterize the optical properties of these splitters using O-band wavelengths and external laser source (ELS) with high optical power exceeding +20 dBm.Show More

Investigation of Polymer Waveguide Splitters for Co-packaged Optics using External Laser Sources

Md Omar Faruk Rasel;Satoshi Suda;Akihiro Noriki;Fumi Nakamura;Takeru Amano

Year: 2024 | Conference Paper |

Scalable Fabrication of 3D Optical Re-distribution for Co-Packaged Optics using an Developed Nanoimprint Stepper

Fumi Nakamura;Kenta Suzuki;Akihiro Noriki;Satoshi Suda;Takayuki Kurosu;Takeru Amano

2024 IEEE 74th Electronic Components and Technology Conference (ECTC)
Year: 2024 | Conference Paper |
For high-density Co-packaged optics, we have proposed an active-optical package substrate, in which silicon photonics are embedded in the substrate with mirror-based optical re-distribution. In this study, imprint technology was introduced for fabricating micro-mirrors to enable high-throughput formation. The novel imprint stepper was developed, and the fabrication of micro-mirrors was demonstrate...Show More

Scalable Fabrication of 3D Optical Re-distribution for Co-Packaged Optics using an Developed Nanoimprint Stepper

Fumi Nakamura;Kenta Suzuki;Akihiro Noriki;Satoshi Suda;Takayuki Kurosu;Takeru Amano

Year: 2024 | Conference Paper |

Development of all-photonics-function embedded package substrate using 2.3D RDL interposer for co-packaged optics

Akihiro Noriki;Hirotaka Uemura;Haruhiko Kuwatsuka;Naoki Matsui;Reona Motoii;Dan Maeda;Tomoya Sugita;Fumi Nakamura;Satoshi Suda;Takayuki Kurosu;Takeru Amano

2024 IEEE 74th Electronic Components and Technology Conference (ECTC)
Year: 2024 | Conference Paper |
Toward a next generation co-packaged optics, we have worked on a novel packaging substrate working as optoelectronic conversion engine and providing optical redistribution function and detachable optical connector. In this paper, we show design of the test vehicle using 2.3D RDL interposer and provide its thermal and electrical analysis results.Show More

Development of all-photonics-function embedded package substrate using 2.3D RDL interposer for co-packaged optics

Akihiro Noriki;Hirotaka Uemura;Haruhiko Kuwatsuka;Naoki Matsui;Reona Motoii;Dan Maeda;Tomoya Sugita;Fumi Nakamura;Satoshi Suda;Takayuki Kurosu;Takeru Amano

Year: 2024 | Conference Paper |

Demonstration of High-Power Stability of Polymer Optical Waveguides Using External Laser Source (ELS) for Co-Packaged Optics

Satoshi Suda;Takayuki Kurosu;Haruhiko Kuwatsuka;Akihiro Noriki;Fumi Nakamura;Takeru Amano

2023 IEEE CPMT Symposium Japan (ICSJ)
Year: 2023 | Conference Paper |
Cited by: Papers (3)
We demonstrate high-power stability of polymer optical waveguide using external laser source. No noticeable loss for short-term continuous input of total optical power of +24.6 dBm with 4-wavelength WDM to the polymer waveguide.Show More

Demonstration of High-Power Stability of Polymer Optical Waveguides Using External Laser Source (ELS) for Co-Packaged Optics

Satoshi Suda;Takayuki Kurosu;Haruhiko Kuwatsuka;Akihiro Noriki;Fumi Nakamura;Takeru Amano

Year: 2023 | Conference Paper |

Thermal Characteristics of Mirror-Based Optical Redistribution for Co-Packaged Optics

Fumi Nakamura;Satoshi Suda;Takayuki Kurosu;Yasuhiro Ibusuki;Akihiro Noriki;Akio Ukita;Koichi Takemura;Tsuyoshi Aoki;Takeru Amano

Journal of Lightwave Technology
Year: 2023 | Volume: 41, Issue: 19 | Journal Article |
Cited by: Papers (2)
Because traffic toward and inside datacenters is increasing, the power consumption of electrical wiring in ethernet switches for datacenter should be addressed. Co-packaged optics (CPO) is a promising solution, where optical components are integrated into the same package substrate as electrical elements. We have proposed one of the CPO modules, where micro-mirror- based optical redistribution is ...Show More

Thermal Characteristics of Mirror-Based Optical Redistribution for Co-Packaged Optics

Fumi Nakamura;Satoshi Suda;Takayuki Kurosu;Yasuhiro Ibusuki;Akihiro Noriki;Akio Ukita;Koichi Takemura;Tsuyoshi Aoki;Takeru Amano

Year: 2023 | Volume: 41, Issue: 19 | Journal Article |

Design and Operation of Silicon Monolithic 1 × 4 Wavefront-control-type Wavelength Selective Switch

Fumi Nakamura;Keijiro Suzuki;Kazuhiro Ikeda;Shu Namiki;Hitoshi Kawashima;Hiroyuki Tsuda

2022 Conference on Lasers and Electro-Optics (CLEO)
Year: 2022 | Conference Paper |
We designed and fabricated a 200-GHz-spacing, 16-channel, 1 × 4 silicon monolithic wavelength selective switch (WSS), adopting a wavefront control configuration with no waveguide crossings. Its basic switching operations were demonstrated with four wavelength channels.Show More

Design and Operation of Silicon Monolithic 1 × 4 Wavefront-control-type Wavelength Selective Switch

Fumi Nakamura;Keijiro Suzuki;Kazuhiro Ikeda;Shu Namiki;Hitoshi Kawashima;Hiroyuki Tsuda

Year: 2022 | Conference Paper |

Photonic integrated WDM switches and filters for ultra-wideband (O to L) optical networks

N. Calabretta;R. Kraemer;Yu Wang;A. Napoli;F. Nakamura;H. Tsuda;K. Prifti;B. Srivathsa;G. Delrosso;T. Aalto;H. Jung;J. Shin;N. Tessema

2021 IEEE Photonics Society Summer Topicals Meeting Series (SUM)
Year: 2021 | Conference Paper |
Cited by: Papers (3)
We experimentally demonstrate multi-band (O- to L-band) monolithic and hybrid photonic integrated wavelength selective switches with fast switching and different data format and data-rates for flexible low-cost 5G/6G optical metro and access distribution networks. We also present results on photonic integrated multiband optical cross-connect switches.Show More

Photonic integrated WDM switches and filters for ultra-wideband (O to L) optical networks

N. Calabretta;R. Kraemer;Yu Wang;A. Napoli;F. Nakamura;H. Tsuda;K. Prifti;B. Srivathsa;G. Delrosso;T. Aalto;H. Jung;J. Shin;N. Tessema

Year: 2021 | Conference Paper |

Multi-Band Photonic Integrated Wavelength Selective Switch

Rafael Kraemer;Fumi Nakamura;Menno van den Hout;Sjoerd van der Heide;Chigo Okonkwo;Hiroyuki Tsuda;Antonio Napoli;Nicola Calabretta

Journal of Lightwave Technology
Year: 2021 | Volume: 39, Issue: 19 | Journal Article |
Cited by: Papers (25)
As fiber-optic systems turn toward multi-band transmission (MBT), exploiting the complete low loss window of optical fibers, novel optical components, able to operate in bands other than the conventional C-band, become necessary. In light of this, we report on a multi-band photonic integrated $\mathbf {1\times 2}$ wavelength selective switch (WSS) operating in the O, S, C and L-bands. The photonic...Show More

Multi-Band Photonic Integrated Wavelength Selective Switch

Rafael Kraemer;Fumi Nakamura;Menno van den Hout;Sjoerd van der Heide;Chigo Okonkwo;Hiroyuki Tsuda;Antonio Napoli;Nicola Calabretta

Year: 2021 | Volume: 39, Issue: 19 | Journal Article |

Silicon Based 1 × M Wavelength Selective Switch Using Arrayed Waveguide Gratings With Fold-Back Waveguides

Fumi Nakamura;Hideaki Asakura;Keijiro Suzuki;Ken Tanizawa;Minoru Ohtsuka;Nobuyuki Yokoyama;Kazuyuki Matsumaro;Miyoshi Seki;Kazuhiro Ikeda;Shu Namiki;Hitoshi Kawashima;Hiroyuki Tsuda

Journal of Lightwave Technology
Year: 2021 | Volume: 39, Issue: 8 | Journal Article |
Cited by: Papers (9)
The design of a novel 1 × M fold-back type wavelength selective switch (WSS), which has fewer waveguide crossings than a conventional integrated WSS, is reported. The WSS is composed of interleavers, 1 × M optical switches, and arrayed waveguide gratings (AWGs). Switches are combined with AWGs by fold-back waveguides, and each AWG works as both a demultiplexer and multiplexer thus avoiding center ...Show More

Silicon Based 1 × M Wavelength Selective Switch Using Arrayed Waveguide Gratings With Fold-Back Waveguides

Fumi Nakamura;Hideaki Asakura;Keijiro Suzuki;Ken Tanizawa;Minoru Ohtsuka;Nobuyuki Yokoyama;Kazuyuki Matsumaro;Miyoshi Seki;Kazuhiro Ikeda;Shu Namiki;Hitoshi Kawashima;Hiroyuki Tsuda

Year: 2021 | Volume: 39, Issue: 8 | Journal Article |

S-, C- and L-Band Photonic Integrated Wavelength Selective Switch

R. Kraemer;F. Nakamura;H. Tsuda;A. Napoli;Calabretta

2020 European Conference on Optical Communications (ECOC)
Year: 2020 | Conference Paper |
Cited by: Papers (4)
A photonic integrated WSS operating on the S-, C- and L-Band is presented with an average extinction-ratio of -20.40 dB. Crosstalk levels were kept below -20 dB for all bands and experimental results on NRZ OOK data indicate error-free operation for up to 35 Gb/s.Show More

S-, C- and L-Band Photonic Integrated Wavelength Selective Switch

R. Kraemer;F. Nakamura;H. Tsuda;A. Napoli;Calabretta

Year: 2020 | Conference Paper |

High Extinction Ratio and Low Crosstalk C and L-Band Photonic Integrated Wavelength Selective Switching

R. Magalhães Gomes Kraemer;F. Nakamura;Yu Wang;H. Tsuda;N. Calabretta

2020 22nd International Conference on Transparent Optical Networks (ICTON)
Year: 2020 | Conference Paper |
Cited by: Papers (9)
A photonic integrated 1×2 Wavelength Selective Switch (WSS) based on a loopback configuration is shown to operate on the C and L-Bands due to the cyclic nature of the employed arrayed-waveguide gratings (AWGs). An average of -22.59 dB and -20.40 dB were observed in the C and L-band channels respectively. Crosstalk levels are kept below -40 dB on the output port A and below -30 dB on output port B....Show More

High Extinction Ratio and Low Crosstalk C and L-Band Photonic Integrated Wavelength Selective Switching

R. Magalhães Gomes Kraemer;F. Nakamura;Yu Wang;H. Tsuda;N. Calabretta

Year: 2020 | Conference Paper |

Experimental Assessments of a Flexible Optical Data Center Network Based on Integrated Wavelength Selective Switch

X. Xue;F. Nakamura;K. Prifti;B. Pan;F. Yan;F. Wang;X. Guo;H. Tsuda;N. Calabretta

2020 Optical Fiber Communications Conference and Exhibition (OFC)
Year: 2020 | Conference Paper |
Cited by: Papers (1)
A novel bandwidth-reconfigurable optical DCN exploiting photonic-integrated WSS is experimentally assessed. Results show that optical bandwidth can be automatically reallocated according to the traffic patterns with 1.75μs end-to-end latency and 0.015 packet-loss at 0.6 load.Show More

Experimental Assessments of a Flexible Optical Data Center Network Based on Integrated Wavelength Selective Switch

X. Xue;F. Nakamura;K. Prifti;B. Pan;F. Yan;F. Wang;X. Guo;H. Tsuda;N. Calabretta

Year: 2020 | Conference Paper |

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