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All Technical Committee Conferences (All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| QIT (2nd) |
2022-05-31 11:30 |
Online | Online | Mitigation-based benchmarking for NISQ devices Haruki Emori, Atsushi Okamoto, Akihisa Tomita (Hokkaido Univ.) |
This study applies quantum error mitigation (QEM) according to the type of quantum error and estimates the average gate ... [more] | |
| IE, ITS, ITE-AIT, ITE-ME, ITE-MMS [detail] | 2022-02-21 14:40 |
Online | Online | Effect of post-exposure time on diffraction efficiency of volume holograms during recording Yuya Kuroda, Atsushi Okamoto (Hokkaido Univ.), Satoshi Shinada, Yuta Goto (NICT), Akihisa Tomita (Hokkaido Univ.) |
To realize the mode division multiplexing transmission, we have proposed a volume holographic mode de-multiplexer (VHDM)... [more] | |
| IE, ITS, ITE-AIT, ITE-ME, ITE-MMS [detail] | 2022-02-21 15:05 |
Online | Online | Mode diffusion technique for reduction of crosstalk in volume holographic mode demultiplexer Shuanglu Zhang, Atsushi Okamoto, Akihisa Tomita (Hokkaido Univ.) |
Volume holographic demultiplexers (VHDMs) utilize angularly multiplexed volume holograms to separate multiplexed spatial... [more] | |
| IE, ITS, ITE-AIT, ITE-ME, ITE-MMS [detail] | 2022-02-21 15:20 |
Online | Online | Resolution in 3D super-resolution projection using single-lens spatial cross modulation method Xinruinan Zhang, Atsushi Okamoto (Hokkaido Univ.), Hisatoshi Funakoshi (Gifu Univ.), Shuanglu Zhang, Akihisa Tomita (Hokkaido Univ.) |
Spatial cross modulation (SCMM) can regenerate optical complex amplitudes by combining a single spatial light modulator ... [more] | |
| QIT (2nd) |
2021-11-30 - 2021-12-01 |
Online | Online | [Poster Presentation]
Analysis of the effects of the two-photon temporal distinguishability on measurement-device-independent quantum key distribution Haobo Ge, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.), Kazuhisa Ogawa (Osaka Univ.) |
Measurement-device-independent quantum key distribution (MDI-QKD) protects the receiver from attacks against the measure... [more] | |
| QIT (2nd) |
2021-11-30 13:30 |
Online | Online | [Poster Presentation]
Analysis of the effects of the two-photon temporal distinguishability on measurement-device-independent quantum key distribution Haobo Ge, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.), Kazuhisa Ogawa (Osaka Univ.) |
[more] | |
| OCS, CS (Joint) |
2021-01-15 13:00 |
Online | Online | Effect of spatial resolution of compensated wave front on performance in volume hologram demultiplexer Hotaka Hayashi, Atsushi Okamoto (Hokkaido Univ.), Taketoshi Takahata (OPTOQUEST), Satoshi Shinada, Yuta Goto, Naoya Wada (NICT), Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.)  OCS2020-34 |
We are proposing volume hologram mode demultiplexer (VHDM) as a demultiplexer for mode division multiplex communication.... [more] | OCS2020-34 pp.37-41 |
| OFT, ITE-BCT, OCS, IEE-CMN [detail] | 2020-11-12 16:25 |
Online | Online | Wave front compensation method for output signal in volume hologram demultiplexer Hotaka Hayashi, Atsushi Okamoto (Hokkaido Univ.), Taketoshi Takahata (OPTOQUEST), Satoshi Shinada, Yuta Goto, Naoya Wada (NICT), Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) OCS2020-25 |
Volume Hologram mode De-Multiplexer (VHDM) using Volume Hologram (VH) is extremely cost effective because it can multipl... [more] | OCS2020-25 pp.11-14 |
| ITE-HI, IE, ITS, ITE-MMS, ITE-ME, ITE-AIT [detail] | 2020-02-28 13:00 |
Hokkaido | Hokkaido Univ. (Cancelled but technical report was issued) |
Influence of the distance between the observation plane and the focal plane on the resolution in tomographic imaging using VPC Jiang Mengying, Atsushi Okamoto, Satosi Kawashima, Kazuhisa Ogawa, AkihisaTomita (Hokkaido Univ.) |
[more] | |
| ITE-HI, IE, ITS, ITE-MMS, ITE-ME, ITE-AIT [detail] | 2020-02-28 13:15 |
Hokkaido | Hokkaido Univ. (Cancelled but technical report was issued) |
Numerical analysis of relationship between light utilization efficiency and modulation accuracy in complex amplitude modulation based on iterative spatial cross modulation Tomohiro Maeda, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
[more] | |
| QIT (2nd) |
2019-11-18 13:50 |
Tokyo | Gakushuin University | [Poster Presentation]
Analysis of the effects of the two-photon distinguishability on decoy state measurement-device-independent quantum key distribution Haobo Ge, Akihisa Tomita, Kazuhisa Ogawa, Atsushi Okamoto (Hokkaido Univ.) |
Measurement-device-independent quantum key distribution (MDI-QKD) protects the receiver from attacks against the measure... [more] | |
| OCS, LQE, OPE | 2019-10-18 14:30 |
Kagoshima | Improvement of Diffraction Efficiency of Mode Demultiplexer Using Volume Hologram at 1550 nm Taijun Shiba, Atsushi Okamoto, Hotaka Hayashi, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.), Taketoshi Takahata (OPTOQUEST), Yuta Goto, Satoshi Shinada, Naoya Wada (NICT) OCS2019-47 OPE2019-85 LQE2019-63 |
To realize the mode division multiplexing transmission, we have proposed a volume holographic mode de-multiplexer (VHDM)... [more] | OCS2019-47 OPE2019-85 LQE2019-63 pp.105-108 |
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| QIT (2nd) |
2019-05-20 17:50 |
Fukuoka | Kyushu University, Chikushi Campus | Numerical analysis of decoy state BBM92 quantum key distribution protocol with multi-photon rejection source Takumi Matsuura, Liang Min, Kazuhisa Ogawa, Atsushi Okamoto, Akihisa Tomita (Hokkaido Univ.) |
The BB84 protocol, which is a representative quantum key distribution protocol, requires a single photon source as a lig... [more] | |
| ITS, IE, ITE-MMS, ITE-HI, ITE-ME, ITE-AIT [detail] | 2019-02-19 11:30 |
Hokkaido | Hokkaido Univ. | Improvement of noise separation accuracy in image reconstruction in virtual phase conjugation based optical tomography Sota Nagayoshi, Atsushi Okamoto (Hokkaido Univ.), Yuta Goto (Fukui Univ.), Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
Virtual phase conjugation based optical tomography (VPC-OT) realizes single-shot three-dimensional (3D) measurement. In ... [more] | |
| ITS, IE, ITE-MMS, ITE-HI, ITE-ME, ITE-AIT [detail] | 2019-02-20 13:00 |
Hokkaido | Hokkaido Univ. | Analysis on Basic Operation of Virtual Shift Method for Accuracy Improvement of Holographic Diversity Interferometry Nobuhiro Yamagishi, Atsushi Okamoto, Tomohiro Maeda (Hokkaido Univ.), Jin Nozawa (Aisin Seiki), Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
Holographic diversity interferometry (HDI) enables single-shot phase measurement by using two image sensors. However, mi... [more] | |
| ITS, IE, ITE-MMS, ITE-HI, ITE-ME, ITE-AIT [detail] | 2019-02-20 13:45 |
Hokkaido | Hokkaido Univ. | Accuracy improvement of phase modulated signal by calibrating spatial light modulator Tomohiro Maeda, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
The modulation accuracy of phase-only spatial light modulators (SLMs) decreases by the distortion of the phase response ... [more] | |
| ITE-BCT, OCS, OFT, IEE-CMN [detail] | 2018-11-09 15:45 |
Okayama | Kurashiki-City-Geibunnkan | Separation Characteristics of Volume Holographic Spatial Mode Demultiplexer at 1550 nm Wavelength Satoshi Shinada (NICT), Shimpei Shimizu, Taijun Shiba (Hokkaido Univ.), Taketoshi Takahata (Optoquest), Atsushi Okamoto (Hokkaido Univ.), Naoya Wada (NICT) OCS2018-58 |
Spatial-mode multiplexer and demultiplexer (MUX/DEMUX) remains essential for systems of mode division multiplexing (MDM)... [more] | OCS2018-58 pp.75-79 |
| QIT (2nd) |
2018-06-04 13:20 |
Hiroshima | ICCH Ran | [Poster Presentation]
Tracking Quantum Error Correction kosuke Fukui, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.) |
To implement fault-tolerant quantum computation with continuous variables, the Gottesman–Kitaev–Preskill (GKP) qubit has... [more] | |
| ITS, IE, ITE-MMS, ITE-HI, ITE-ME, ITE-AIT [detail] | 2018-02-16 13:00 |
Hokkaido | Hokkaido Univ. | Experiment on digital image multiplexing/demultiplexing using virtual phase conjugation for high density holographic memory Yuta Goto, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.) |
We experimentally implemented and proved the concept of the multiplexing and demultiplexing in digital images using VPC,... [more] | |
| QIT (2nd) |
2017-11-16 13:50 |
Saitama | Saitama University | [Poster Presentation]
BB84 Quantum Key Distribution system with a Dual-Parallel Modulator Weiyang Zhang, Yu Kadosawa, Akihisa Tomita, Kazuhisa Ogawa, Atsushi Okamoto (Hokkaido Univ.) |
The state preparation flaw which is generated by the pulse fluctuation in the signal applied for the phase modulator in ... [more] | |
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