{"ID":2830572,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2512.09347","arxiv_id":"2512.09347","title":"133-Tbps 1040-km (13$\\times$80 km) Lumped-Amplified Transmission Over 22 THz in S-to-U-Band Using Hybrid Multiband Repeater with PPLN-Based Optical Parametric Amplifiers and EDFAs","abstract":"We demonstrated 22.05-THz four-band long-haul transmission with a S-to-U-band lumped repeater consisting of PPLN-based optical parametric amplifiers and EDFAs over an 80-km-span SMF link. The achieved net bitrate was 133.06 Tbps at 1040 km with the 25.5-dBm fibre launch power designed by accounting for ISRS.","short_abstract":"We demonstrated 22.05-THz four-band long-haul transmission with a S-to-U-band lumped repeater consisting of PPLN-based optical parametric amplifiers and EDFAs over an 80-km-span SMF link. The achieved net bitrate was 133.06 Tbps at 1040 km with the 25.5-dBm fibre launch power designed by accounting for ISRS.","url_abs":"https://arxiv.org/abs/2512.09347","url_pdf":"https://arxiv.org/pdf/2512.09347v1","authors":"[\"Shimpei Shimizu\",\"Takayuki Kobayashi\",\"Masashi Abe\",\"Takushi Kazama\",\"Akira Kawai\",\"Kosuke Kimura\",\"Masanori Nakamura\",\"Fukutaro Hamaoka\",\"Koji Enbutsu\",\"Takahiro Kashiwazaki\",\"Munehiko Nagatani\",\"Hitoshi Wakita\",\"Yuta Shiratori\",\"Hiroshi Yamazaki\",\"Hiroyuki Takahashi\",\"Takeshi Umeki\",\"Yutaka Miyamoto\"]","published":"2025-12-10T06:10:28Z","proceeding":"physics.optics","tasks":"[\"physics.optics\",\"eess.SP\"]","methods":"[]","has_code":false}