Publications

First author:

• G. Soma, Y. Nomoto, T. Umezawa, Y. Yoshida, Y. Nakano, and T. Tanemura, "Compact and scalable polarimetric self-coherent receiver using a dielectric metasurface," Optica 10(5), 604 (2023). DOI: 10.1364/optica.484318.  [press release] [selected for cover image]

• G. Soma, W. Yanwachirakul, T. Miyazaki, E. Kato, B. Onodera, R. Tanomura, T. Fukui, S. Ishimura, M. Sugiyama, Y. Nakano, and T. Tanemura, “Ultra-broadband surface-normal coherent optical receiver with nanometallic polarizers,” ACS Photonics 9(8), 2842-2849 (2022). DOI: 10.1021/acsphotonics.2c00759. [press release]

• G. Soma, S. Ishimura,  R. Tanomura, T. Fukui, M. Ito, Y. Nakano, and T. Tanemura, "Integrated Dual-Polarization Coherent Receiver without Polarization Splitter-Rotator, " Opt. Express, 29(2), 1711-1721 (2021). DOI: 10.1364/OE.413310.

Co-author:

• K. Komatsu, G. Soma, S. Ishimura, H. Takahashi, T. Tsuritani, M. Suzuki, Y. Nakano, and T. Tanemura, "Scalable Multi-Core Dual-Polarization Coherent Receiver Using a Metasurface Optical Hybrid," J Lightwave Technol. DOI: 10.1109/JLT.2024.3374336.

• R. Tanomura, R. Tang, G. Soma, S. Ishimura, T. Tanemura, and Y. Nakano, "All-Optical MIMO Demultiplexing Using Silicon-Photonic Dual-Polarization Optical Unitary Processor," J. Lightwave Technol. 41(12), 3791–3796 (2023). DOI: 10.1109/JLT.2023.3276003.

• R. Tanomura, R.Tang, T. Umezaki, G. Soma, T. Tanemura, Y. Nakano, "Scalable and Robust Integrated Unitary Converter based on Multiplane Light Conversion," Phys. Rev. Appl., 17(2), 024071 (2022). DOI: 10.1103/PhysRevApplied.17.024071.

Preprint:

• G. Soma, K. Komatsu, C. Ren, Y. Nakano, and T. Tanemura, "Metasurface-enabled non-orthogonal four-output polarization splitter for non-redundant full-Stokes imaging," arXiv[physics.optics] 2405.10634 (2024). 

• G. Soma and T. Tanemura, "Complete vectorial optical mode converter using multi-layer metasurface," arXiv[physics.optics] 2401.05127 (2024). 

First author:

• G. Soma, W. Yanwachirakul, T. Miyazaki, E. Kato, B. Onodera, R. Tanomura, T. Fukui, S. Ishimura, M. Sugiyama, Y. Nakano, and T. Tanemura, “Compact Surface-Normal Coherent Receiver with Wire-Grid Polarizers,” in Conference on Lasers and Electro-Optics (CLEO) 2023, SM4I.3. (Refereed / Oral)

• G. Soma, Y. Nomoto, T. Umezawa, Y. Yoshida, Yoshiaki Nakano, and Takuo Tanemura, “Self-Coherent Transmission Using Metasurface-based Stokes-Vector Receiver,” in  Optical Fiber Communication Conference (OFC) 2023, M2E.2. (Refereed / Oral)

• G. Soma, Y. Nomoto, Y. Nakano, and T. Tanemura, “Surface-Normal Stokes Vector Receiver based on Superimposed Metasurface,” in Optical Fiber Communication Conference (OFC) 2022, M4J.5. (Refereed / Oral)

• G. Soma, S. Ishimura, R. Tanomura, T. Fukui, M. Ito, Y. Nakano, and T. Tanemura, “Polarization-Splitter-Rotator-Free Dual-Polarization Coherent Receiver with a Single Optical Hybrid,” in Conference on Lasers and Electro-Optics (CLEO) 2021, STu2B.4. (Refereed / Oral)

Co-author:

• K. Komatsu, S. Ishimura, C. Ren, G. Soma, H. Takahashi, T. Tsuritani, M. Suzuki, Y. Nakano, and T. Tanemura, “Metasurface-based Coherent Receiver Insensitive to LO Polarization,” in Optical fiber and communication conference (OFC) 2024, Th4B.2. (Refereed / Oral; Post deadline paper)

• S. Ishimura, H. Takahashi, G. Soma, K. Komatsu, T. Tanemura, T. Tsuritani, and M. Suzuki, “Circularly-Polarized Self-Homodyne Free-Space Optical Communication using Partial Stokes-Vector Receiver,” in Optical fiber and communication conference (OFC) 2024, W4G.6. (Refereed / Oral)

• T. Tanemura, S. Maeda, T. Okimoto, K. Komatsu,  G. Soma, and Y. Nakano, “Scalable Coherent Transceivers for Multi-Terabit Optical Links,” in International Symposium on Photonics and Electronics Convergence Advanced Nanophotonics and Silicon Device Systems (ISPEC) 2023. (Oral / Invited)

• S. Maeda, T. Fukui, T. Okimoto, G. Soma, T. Tanemura, and Y. Nakano, “Design and Demonstration of  Optical-Frequency-Comb-Based Coherent Receiver Circuit,” in International Symposium on Photonics and Electronics Convergence Advanced Nanophotonics and Silicon Device Systems (ISPEC) 2023. (Poster)

• S. Maeda, T. Fukui, T. Okimoto, G. Soma, T. Tanemura, and Y. Nakano, “Silicon Photonic Multi-Wavelength Coherent Receiver using Local Oscillator Optical Frequency Comb,” in Photonic Switching Conference (PSC) 2023, M2E.2. (Refereed / Oral)

• Kento Komatsu, G. Soma, Shota Ishimura, Hidenori Takahashi, Takehiro Tsuritani, Masatoshi Suzuki, Yoshiaki Nakano, Takuo Tanemura, “FIFO-free 4-core Dual-polarization Optical Hybrid Using a Single Dielectric Metasurface,” in European Conference on Optical Communication (ECOC) 2023, Th.C.1.3. (Refereed / Oral / Post deadline paper)

• T. Tanemura, S. Ishimura, T. Fukui, R. Tanomura, G. Soma, S. Maeda, and Y. Nakano, “Photonic Integrated Self-Coherent Transceivers for Beyond-Tbps Short-Reach Links,” in International Symposium on Photonics and Electronics Convergence Advanced Nanophotonics and Silicon Device Systems (ISPEC) 2022. (Oral / invited)

• S. Maeda, T. Fukui, G. Soma, T. Tanemura and Y. Nakano, “Design and Characterization of Multi-Wavelength Coherent Receiver Circuit,” in International Symposium on Photonics and Electronics Convergence Advanced Nanophotonics and Silicon Device Systems (ISPEC) 2022. (Poster)

• R. Tanomura, G. Soma, R. Tang, S. Ishimura, T. Tanemura, and Y. Nakano, “All-optical dual-polarization MIMO Processor based on Integrated Optical Unitary Converter,” in European Conference on Optical Communication (ECOC) 2022, Th1F.4. (Refereed / Oral)

• R. Tanomura, K. Mizukami, R. Tang, G. Soma, T. Tanemura, and Y. Nakano, “Optical Neural Network with Reduced Phase Shifters Using Multi-Plane Light Conversion,” in OptoElectronics and Communications Conference (OECC) and Photonics in Switching and Computing (PSC) 2022, WC3-3. (Refereed / Oral / Best Student Paper Award)

• H. Miyano, T. Fukui, G. Soma, A. Otomo, T. Tanemura, and Y. Nakano,“ Dimerized plasmonic-organic gratings for high-speed metasurface modulators,” in OptoElectronics and Communications Conference (OECC) and Photonics in Switching and Computing (PSC) 2022, TuD3-2. (Refereed / Oral)

• R. Tanomura, K. Mizukami, R. Tang, G. Soma, T. Tanemura, and Y. Nakano, “Error-Tolerant Optical Neural Network Processor based on Multi-Plane Light Conversion,” in Conference on Laser and Electro-Optics (CLEO) 2022, JTh3A.49. (Refereed / Oral)

• S. Ishimura, T. Fukui, R. Tanomura, G. Soma, Y. Nakano, and T. Tanemura, “64-QAM Self-Coherent Transmission Using Symmetric Silicon Pho- tonic Stokes-Vector Receiver,” in Optical Fiber Communication Conference (OFC) 2022, M4J.6. (Refereed / Oral)