[1] Shun Harada, Tatsuki Ishijima, Takahide Sakamoto, and Akito Chiba, “50-GHz-Spaced Flat
Comb Generation by Inphase/Quadrature Electro-Optic
Modulator Driven at 25 GHz,” Conference on Laser and Electro Optics
(CLEO2023), JTh2A.97, San Jose, USA, 2023. [poster]
[2] Takumi Hidaka, Tatsuki Ishijima, Shun Harada, Takahide Sakamoto, “Spectral Restoration of Optical Comb by
Low-Resolution Scanning Etalon Combined with Inverse Matrix Deconvolution
Processing,” Conference on Laser and Electro Optics (CLEO2023),
JTu2A.42, San Jose, USA, 2023. [poster]
[3]
Takahide Sakamoto, “Correlative
Conjugated Detection Scheme for Laser-Phase-Noise-Tolerant Coherent Detection,”
Conference on Laser and Electro Optics (CLEO2023), SM2I.7, San Jose, USA,
2023. [oral]
[4] Tatsuki Ishijima, Shuhei Otsuka, Shun
Harada, Takahide Sakamoto, Ken Tanizawa,
and Fumio Futami, “Nonlinear Tolerant Conjugated RoF System Secured by Physical
Layer Encryption with Deliberate Signal Randomization,” the 2023 Optical
Fiber Communication Conference (OFC2023), W4C.4, San Jose, USA, Mar. 2023. [oral]
[5] Shuhei Otsuka, Ryo Koguchi,
and Takahide Sakamoto, “Parallel Extension of High-Speed Analog-Circuit FIR
Equalizer for Low-Latency Optical Transceiver/Receiver,” the 2023 Optical
Fiber Communication Conference (OFC2023), W1E.2, San Jose, USA, Mar. 2023. [oral]
[6] Hideto Takayasu, Syuhei
Otsuka, Yuma Sato, and Takahide Sakamoto,
“Quasi-Real-Time High Resolution Spectrum Analyzer by Two-Step Spectroscopy”, SPIE Photonics West, San Francisco, USA,
Paper 12429-21, Feb. 2023. (in Next-Generation Optical Communication:
Components, Sub-Systems, and Systems XII (SPIE, 2023), Vol. 12429, pp. 139-142.)
[oral]
[7] Takumi Hidaka, Syun Harada, Tatsuki Ishijima, Hideto Takayasu, and Takahide Sakamoto, “Simplification of etalon
spectrometer using inverse matrix data processing algorithm for optical comb
spectrum evaluation”, SPIE Photonics West,
San Francisco, USA, Paper 12429-27, Feb. 2023. (in Next-Generation Optical
Communication: Components, Sub-Systems, and Systems XII (SPIE, 2023), Vol. 12429,
pp. 87–91.) [oral]
[8] Takahide Sakamoto, Tatsuki Ishijima,
Syuhei Otsuka, and Hideto
Takayasu, “Asymmetric Heterodyne Downconversion for Fading-Free
Radio-over-Fiber Systems”, SPIE Photonics
West, San Francisco, USA, Paper 12429-41, Feb.
2023. (in Next-Generation Optical Communication: Components,
Sub-Systems, and Systems XII (SPIE, 2023), Vol. 12429, pp. 211-212.) [oral]
[9] Takahide Sakamoto, and Akito Chiba,
“Multiple-Frequency-Spaced and -Offset Flat Optical Comb Generation Using
Multiple-Parallel Phase Modulator: Theory and Design,” J. Opt. Soc. Am. B,
vol. 39, no. 6, pp. 1644-1654, June 2022.
[10] Tatsuki Ishijima, and Takahide Sakamoto,
“Flat Comb Convolution on Deeply Phase Modulated Light for Broader Spectral
Enhancement of Comb Generation,” the IEEE Photonics Conference 2022 (IPC
2022), TuA3.2, Vancouver, Nov. 2022. [oral]
[11] Takahide Sakamoto, Shuhei Otsuka,
Tatsuki Ishijima, and Hideto Takayasu, “Fiber-Nonlinearity Cancellation of 8-PSK
Radio-on-Fiber Signals by Conjugated RoF based on
Photonic Dual-Sideband Upconversion and Asymmetric
Heterodyne Downconversion,” the IEEE Photonics Conference 2022 (IPC 2022),
ThD1.3, Vancouver, Nov. 2022. [oral]
[12] Tatsuki
Ishijima, Shun Harada, and Takahide Sakamoto, “An Energy-Saving Optical Comb Generator by
Deeply Driven MZM and Multi-Stage Phase Modulators,” 48th European Conference on Optical Communication (ECOC2022),
Basel, Switzerland, We2E.1, Sep. 2022. [oral]
[13] Takumi Hidaka, Tatsuki Ishijima, and Takahide Sakamoto, “Spectral Restoration of
Optical Comb by Low-Resolution Spectrum Analyzer Combined with Inverse Matrix
Deconvolution Processing,” the Pacific Rim Conference on Lasers and
Electro-Optics (CLEO-PR2022), Sapporo Japan, P-CTh6-07, Jul. 2022. [poster]
[14] Shuhei Otsuka, and Takahide Sakamoto, “Experimental Investigation
on Parallel Extension of Optoelectronic Hybrid FIR Filter,” the Pacific Rim
Conference on Lasers and Electro-Optics (CLEO-PR2022), Sapporo Japan,
CThP13C-02, Jul. 2022. [oral]
[15] Tatsuki Ishijima,
and Takahide Sakamoto, “Wideband Ultra-Flat
Spectral Enhancement by Cascaded Phase Modulation on Frequency Comb Generated
from Mach-Zehnder Modulator,” Conference on Laser and Electro Optics
(CLEO2022), San Jose, USA, JTh3A.24, 2022. [poster]
[16] Hideto Takayasu, Shuhei Otsuka, and Takahide
Sakamoto, “Super Agile High Resolution Spectrum Analyzer by Sampled
Heterodyne System,” Conference on Laser and Electro Optics (CLEO2022),
San Jose, USA, JTh3A.20, 2022. [poster]
[17]
Takahide Sakamoto, and Akito Chiba, “Multi-Frequency-Spaced Optical Comb
Generation by Superposition of Purely Deeply Phase-Modulated Lights,” the
IEEE Photonics Conference 2021 (IPC 2021), Virtual Conference, WC4.3, Oct.
2021. [oral]
[18]
Takahide Sakamoto, Masaki Yamazaki, and Ryo Kouguchi, “Dual Coherent Sampling for Statistical
Error-Vector-Magnitude Monitoring of Nonlinearly Phase Distorted Signals,” the
Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR2020), Virtual
Conference, 2F, Aug. 2020. [oral]
[19]
J. Mochizuki, K. Inagaki, G.-W. Lu, T. Sakamoto, Y. Yoshida, A. Kanno, N.
Yamamoto, and T. Kawanishi, “Variable-linewidth light
source based on Brownian motion random walk in optical phase,” IEICE
Electron. Express, vol. 17, no. 16, pp. 1-4, Apr. 2020.
[20]
Takahide Sakamoto, “Optical comb generation and its application (invited),” International
Conference on Photonics Solutions (ICPS2019), Chiang-Mai, Thailand, Th.B3, Nov. 2019 (invited). [oral]
[21]
Takahide Sakamoto, “Phase-Conjugated Signal Processing for Opto-Electronic
Signal Measurements,” Photonics-applied Electromagnetic Measurement
(PEM2019), Ise, Japan, PE-16, Nov. 2019. [oral]
[22]
T. Sakamoto, G.W. Lu, N. Yamamoto, and T. Kawanishi, “Simultaneous Compensation
of Fiber Nonlinearity and Dispersive Fading Effects by Conjugated-Paired
Radio-on-Fiber Transmission with Phase-Shifted Dual-Sideband Downconversion”, The
24th OptoElectronics and Communications Conference (OECC2019), Fukuoka,
Japan, TuP4-F2, Jul. 2019. [poster]
[22]
石島 樹，原田 駿，坂本高秀, “光通信・計測向けの，高深度光変調型広帯域コム光源”, 電子情報通信学会総合大会, C-3/4-6,2023年3月 (招待講演).
[23]
生田海，中村迅也，伊藤裕太，坂本高秀，山本直克，中村守里也,“複素リザーバコンピューティングを用いた非線形イコライザによる自己位相変調の補償実験”, 電子情報通信学会総合大会, B-10-25,2023年3月.
[24] 坂本高秀, "超平坦光コムを用いた高度光計測 （招待講演）" ,レーザー学会学術講演会第43回年次大会, H03-19a-XI-01, 2023年1月．
[25] 坂本高秀，大塚修平，石島 樹 “C-RoF 8PSK信号受信による光ファイバ非線形補償に関する検討”, 電子情報通信学会光ファイバ技術研究会(OFT), 技報 (IEICE-OFT2022-35), vol. 122, no. OFT-210, pp. 73-76, 2022年10月.
[26]日高卓海，石島 樹，原田 駿，坂本高秀,“逆行列データ処理を組み込んだ低解像スペクトラムアナライザによる光コムスペクトルの復元”, 電子情報通信学会光ファイバ技術研究会(OFT), 技報
(IEICE-OFT2022-22), vol. 122, no. OFT-210, pp. 17-19, 2022年10月. 【学生ポスター奨励賞】
[27]高安英都，大塚修平，佐藤優真，坂本高秀,“サンプリングヘテロダインシステムを用いた超高速超高分解スペクトラムアナライザー”, 電子情報通信学会光ファイバ技術研究会(OFT), 技報
(IEICE-OFT2022-25), vol. 122, no. OFT-210, pp. 29-32, 2022年10月. 【学生ポスター奨励賞】
[28]日高卓海，坂本高秀, “光コムスペクトル評価のための逆行列データ処理によるエタロン分光器”, 電子情報通信学会論文誌C, vol.
J105-C, no. 4, pp. 115-116, 2022年4月. 論文賞受賞論文 [学生論文特集秀逸論文 ]
[29] 坂本高秀, “光時間周波数信号処理による超高速光計測【さきがけ】”, 科学技術振興機構新技術説明会, JST戦略的創造研究推進事業2, 2021年2月.
[30] 坂本高秀,“Conjugated
Radio-over-fiberシステムにより得られる光ファイバ非線形耐力に関する検討”, 電子情報通信学会光ファイバ技術研究会(OFT), 技報
(IEICE-OFT2020-27), vol. 120, no. 184, pp. 74-77, 2020年10月.
[31] 坂本高秀, 高口亮，山崎正樹, “デュアルコヒーレントサンプリングによる光キャリア位相ドリフトの統計的評価”,電子情報通信学会総合大会,
B-10−51,2020年3月.