27-THz ISRS-Supported Transmission Over 1040 km in S+C+L+U and Extreme Longer-Wavelength Band

We demonstrated 27-THz lumped-amplified transmission within $1464.00-1702.64 \mathrm{~nm}$ with PPLN-based OPA/EDFA hybrid repeater extended to extreme longer-wavelength band (Xband), achieving the record capacity of 160.2 Tbps in 1040-km ($13 \times 80-\mathrm{km}$) transmission supported by designed ISRS.