Periodically Poled Lithium-niobate-based Wavelength Converters for Waveband Extension to U-Band and Beyond
Year: 2025
Type: article
Abstract: We developed periodically poled lithium niobate (PPLN)-based wavelength converters for U-band expansion, achieving 3-dB converted gain flatness and 6-dB noise figure for full U-band expansion. The expanded waveband is covered from 1624.23 to 1675.99 nm. A converted 1.2-Tbps/ch. wavelength-division-multiplexing signal was successfully transmitted over 100-km G.654.E fiber. By changing the PPLN temperature parameters of the same converters, the conversion bandwidth can be shifted to longer wavelengths beyond the U-band, which corresponds to 1675.99–1719.24 nm. In this situation, we demonstrated the extensibility beyond the U-band up to 1719 nm.
Source: Journal of Lightwave Technology
Institution: NTT (Japan)
Language: English
Topic: Optical Network Technologies
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,645
Awards: G1297375824, G5306677620
OpenAlex ID: W4409723847