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Takahiro Kodama
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2020 – today
- 2024
- [j9]Takahiro Kodama
, Tomoya Nakagawa, Shota Eguchi, Keiji Shimada, Ryosuke Matsumoto:
Double-link-failure-tolerant shared protection for fully coupled/half-split switchable point-to-multipoint coherent optical systems. J. Opt. Commun. Netw. 16(9): 832-842 (2024) - [c38]Tomoya Ishikawa, Ayumu Kariya, Fumiya Kobori, Keita Tanaka, Takahiro Kodama:
Super Wide-Flat Beam Transmission over Scatter-prone Underwater Channel Using Twin Parallel Flat-Narrow Beams Generated by Aspheric Lens Pair-type Beam Shaper. OFC 2024: 1-3 - [c37]Takahiro Kodama, Fumiya Kobori, Ayumu Kariya, Keita Tanaka, Kiichiro Kuwahara:
Broadband Single Flat Narrow Beam Shaped Time-domain Adaptive Modulation for Underwater Transmission with Wavelength Characteristics in Blue-green WDM System. OFC 2024: 1-3 - [c36]Kiichiro Kuwahara, Hyuga Nagami, Keita Tanaka, Fumiya Kobori, Ayumu Kariya, Shogo Hayashida, Takahiro Kodama:
Air/Water Path Switching with Beam Steering for Water Distance/Turbidity Adaptive Underwater Optical Wireless Communication Network: Concept and Demonstration. OFC 2024: 1-3 - 2023
- [c35]Keiiji Shimada, Ryosuke Matsumoto, Keita Tanaka, Takahiro Kodama
Secure Point-to-Multipoint Transmission with Access-Span Difference Using Phase Encryption and Power-Loaded IQ-Channel Multiplexing. PSC 2023: 1-3 - [c34]Keita Tanaka, Keiiji Shimada, Takahiro Kodama
Kalman-Filter-Aided Dual-Band Collaborative Frequency Self-Tuning in Multiband Transceiver for P-to-MP System with Tight Passband Narrowing. PSC 2023: 1-3 - 2022
- [c33]Takahiro Kodama, Tomoya Nakagawa, Ryosuke Matsumoto:
Any-Double-Link Failure Tolerant Bypass/Backup Switchable WDM-PON Employing Path-Pair Shared Protection and Bidirectional Wavelength Pre-assignment. OFC 2022: 1-3 - [c32]Yudai Uchida, Tsubasa Ishikawa, Itsuki Urashima, Shoma Murao, Takahiro Kodama, Yasuki Sakurai, Ryuichi Sugizaki, Masahiko Jinno:
Core Selective Switch Supporting 15 Cores Per Port Using Bundled Three 5-Core Fibers. OFC 2022: 1-3 - [c31]Hidetoshi Amano, Mizuki Inagaki, Takahiro Kodama
Polarization-independent Subtractive Interference Cancellation for Bidirectional Same-band Digital Coherent System. OECC/PSC 2022: 1-3 - [c30]Shota Eguchi, Tomoya Nakagawa, Mizuki Inagaki, Keiji Shimada, Takahiro Kodama
C-Band Downlink Coherent System Assisted TWDM-PON System with Type B Protection and Dual-DSP Collaborative SIMO. OECC/PSC 2022: 1-3 - [c29]Fumiya Kobori, Keita Tanaka, Takahiro Kodama
Inter Symbol Interference-tolerant Time-domain Hybrid PAM2/PAM4 Signal with Optimized Time Slot Arrangement. OECC/PSC 2022: 1-3 - [c28]Takahiro Kodama
First Demonstration of Hierarchical SDM/WDM 10-Mode-Fiber Ring Network with Spatial Bypass and Reconfigurable Spatial Add/Drop Multiplexing. OECC/PSC 2022: 1-3 - [c27]Takahiro Kodama
All-optical MDM-OFDM System Using A Single MUX/DeMUX for Future Converged Optical Networks. OECC/PSC 2022: 1-3 - [c26]Masaki Murakami, Yoshihiko Uematsu, Satoru Okamoto, Naoaki Yamanaka, Daiki Soma, Shohei Beppu, Noboru Yoshikane, Takehiro Tsuritani, Takahiro Kodama
Experiment of Nationwide Multi-Route Skew Cancelling for Dynamic Mapping of MAC Signals over SDM/WDM Network Testbed. OECC/PSC 2022: 1-3 - 2021
- [j8]Takahiro Kodama
Comprehensive Analysis of Time-Domain Hybrid PAM for Data-Rate and Distance Adaptive UWOC System. IEEE Access 9: 57064-57074 (2021) - [j7]Masahiko Jinno, Yu Asano, Yoshiki Azuma, Takahiro Kodama
Technoeconomic analysis of spatial channel networks (SCNs): benefits from spatial bypass and spectral grooming [Invited]. JOCN 13(2): A124-A134 (2021) - [j6]Masahiko Jinno, Tsubasa Ishikawa, Takahiro Kodama
Enhancing the flexibility and functionality of SCNs: demonstration of evolution toward any-core-access, nondirectional, and contentionless spatial channel cross-connects [Invited]. JOCN 13(8): D80-D92 (2021) - [j5]Yoshiaki Inoue
Global Optimization of Relay Placement for Seafloor Optical Wireless Networks. IEEE Trans. Wirel. Commun. 20(3): 1801-1815 (2021) - [c25]Masahiko Jinno, Itsuki Urashima, Tsubasa Ishikawa, Takahiro Kodama:
Ultra-Wideband and Low-Loss Core Selective Switch Employing Two-Dimensionally Arranged MEMS Mirrors. OFC 2021: 1-3 - [c24]Takahiro Kodama, Tetsuji Goto, Ryosuke Matsumoto:
Wavelength Collision-Free and Low-Loss Full-Duplex Transmission over Switchable Full-Coupling or Half-Split Coherent WDM-PON System with Shared Protection. OFC 2021: 1-3 - [i2]Takahiro Kodama, Muhamad Aizat Bin Ahmad Sanusi, Fumiya Kobori, Tomotaka Kimura, Yoshiaki Inoue, Masahiko Jinno:
Time-Domain Hybrid PAM for Data-Rate and Distance Adaptive UWOC System. CoRR abs/2103.11789 (2021) - 2020
- [c23]Takahiro Kodama
Demonstration of Any-Care-Access Non-Directional Spatial Cross-Connects Based on Core Selective Switch with and without Core-Contention Constraint. ECOC 2020: 1-4 - [c22]Masahiko Jinno, Takahiro Kodama:
Spatial Channel Network (SCN): Introducing Spatial Bypass toward the SDM Era. OFC 2020: 1-3 - [c21]Masahiko Jinno, Takahiro Kodama, Tsubasa Ishikawa:
Five-Core 1×6 Core Selective Switch and Its Application to Spatial Channel Networking. OFC 2020: 1-3 - [c20]Takahiro Kodama, Kouki Arai:
Energy-Efficient Coherent PON System with Access-Span Length Difference between ONUs using Marginal IQ Power Loading in Downlink Transmission. OFC 2020: 1-3 - [c19]Takahiro Kodama, Akihiro Maruta, Naoya Wada, Gabriella Cincotti:
Fixed-Rate-Breaking All-Optical OFDM System using Time-Domain Hybrid PAM with Sparse Subcarrier Multiplexing and Power-Loading for Optical Short-Reach Transmission. OFC 2020: 1-3 - [i1]Yoshiaki Inoue, Takahiro Kodama, Tomotaka Kimura:
Global Optimization of Relay Placement for Seafloor Optical Wireless Networks. CoRR abs/2006.02678 (2020)
2010 – 2019
- 2019
- [j4]Takahiro Kodama
Hybrid QAM-Based Labels Generated by Two Multi-Level PSK Codes. IEICE Trans. Commun. 102-B(12): 2199-2204 (2019) - [c18]Takahiro Kodama, Tatsuya Miyazaki, Masanori Hanawa, Akihiro Maruta, Naoya Wada, Gabriella Cincotti:
Low-Speed DSP Assisted Dispersion Compensation-Free IM/DD Optical OFDM Transmission Over 100 km-SMF using Time- and Frequency-Domain Sparse-Subcarrier Multiplexing. OFC 2019: 1-3 - [c17]Tsuyoshi Konishi, Takuya Murakawa, Tomotaka Nagashima, Satoshi Shimizu, Makoto Hasegawa, Kuninori Hattori, Masayuki Okuno, Shinji Mino, Akira Himeno, Naoya Wada, Hiroyuki Uenohara, Takahiro Kodama, Gabriella Cincotti:
Enhanced Optical Communications Through Joint Time-Frequency Multiplexing Strategies. OFC 2019: 1-3 - [c16]Masanori Hanawa, Takahiro Kodama
SOP Independent Self-Homodyne Detection of Polarization Multiplexed QPSK Signal with AQPM Pilot Carrier. OECC/PSC 2019: 1-3 - [c15]Takahiro Kodama
Underwater Wireless Optical Access Network with OFDM/SBMA System: Concept and Demonstration. OECC/PSC 2019: 1-3 - [c14]Kazuhiko Nakamura, Kenichi Nagaoka, Daisuke Matsuo, Takahiro Kodama
Over 1 Gbit/s NRZ-OOK Underwater Wireless Optical Transmission Experiment Using Wideband PMT. OECC/PSC 2019: 1-3 - 2018
- [j3]Takahiro Kodama
Hybrid Opto-Electrical CDM-Based Access Network. IEICE Trans. Commun. 101-B(6): 1359-1365 (2018) - [c13]Takahiro Kodama
Seamless PAM-4 to QPSK Modulation Format Conversion at Gateway for Short-Reach and Long-Haul Integrated Networks. ECOC 2018: 1-3 - [c12]Takahiro Kodama
Multi-level QAM-based labels Generated by the Convolution of Optical and Electrical Codes. PSC 2018: 1-3 - [c11]Takahiro Kodama
Dispersion-induced IQ Imbalance Compensation Using an Electrical-domain Pre-FDE in QPSK Self-homodyne Transmission with AQPM Pilot-carrier. PSC 2018: 1-3 - 2017
- [c10]Masashi Binkai, Takahiro Kodama, Tsuyoshi Yoshida, Yuita Noguchi, Naoki Suzuki, Kuniaki Motoshima:
Frequency-domain hybrid N × 100 Gb/s regular QAMs for simple, scalable, and transparent software-defined optical transport. OFC 2017: 1-3 - [c9]Takahiro Kodama, Masashi Binkai, Tsuyoshi Yoshida:
Simple frequency-domain hybrid-QAM superchannel with path-fitted pre-filtering and collaborative-subcarrier frequency self-tuning for flexible ROADM systems. OFC 2017: 1-3 - [c8]Takahiro Kodama, Ryosuke Matsumoto, Naoki Suzuki:
Demonstration of data-rate and power-budget adaptive 100 Gb/s/ A-based coherent PON downlink transmission. OFC 2017: 1-3 - 2016
- [j2]Takahiro Kodama
Nonlinear-Error-Free Optical Quantization Using Dense Spectral Slicing. IEICE Trans. Commun. 99-B(3): 647-653 (2016) - 2015
- [c7]Gabriella Cincotti, Satoshi Shimizu, Takuya Murakawa, Takahiro Kodama
Flexible power-efficient Nyquist-OTDM transmitter, using a WSS and time-lens effect. OFC 2015: 1-3 - 2014
- [c6]Takahiro Kodama
A novel optical quantization approach using spectral shifts of OFDM subcarriers and a frequency packed AWG. ECOC 2014: 1-3 - [c5]Takahiro Kodama
Asynchronous MDM-OCDM-based 10G-PON over 40km-SMF and 2km-TMF using mode MUX/DeMUX at remote node and OLT. OFC 2014: 1-3 - 2013
- [j1]Takahiro Kodama
Scaling the System Capacity and Reach of a 10G-TDM-OCDM-PON System Without an En/Decoder at an ONU. JOCN 5(2): 134-143 (2013) - [c4]Takahiro Kodama
Energy-efficient optical quantization scheme with orthogonal spectral slicing by AWG for OFDM. OFC/NFOEC 2013: 1-3 - [c3]Takahiro Kodama
Highly-scalable, fully-asynchronous 16 ONUs, OCDM-based 10G-PON with a multiple access noise suppression at RN. OFC/NFOEC 2013: 1-3 - [c2]Ryosuke Matsumoto, Takahiro Kodama, Satoshi Shimizu, Ryujiro Nomura, Koji Omichi, Naoya Wada, Ken-ichi Kitayama:
Cost-effective, asynchronous 4 × 40Gbps full-duplex OCDMA demonstrator using apodized SSFBGs and a multi-port encoder/decoder. OFC/NFOEC 2013: 1-3 - [c1]Yuki Yoshida, Takahiro Kodama, Satoshi Shinada, Naoya Wada, Ken-ichi Kitayama:
Fixed-length elastic-capacity OFDM payload packet: Concept and demonstration. OFC/NFOEC 2013: 1-3
Coauthor Index
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