Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 34, Issue 17, Pages 923-926Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2022.3193467
Keywords
Optical modulation; Optical receivers; Optical amplifiers; Optical fibers; Optical filters; Modulation; Optical attenuators; Radio-over-fiber; mobile fronthaul; photonic downconversion; optical communications
Funding
- Research and Development of High-Speed THz Communication Based on Radio and Optical Direct Conversion Contract
- Ministry of Internal Affairs and Communications of Japan [JPJ000254]
- JSPS KAKENHI [22K04116]
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This study compares the performance of photonic downconversion technology using single and dual wavelength modulation methods. The results demonstrate the potential of the system as a promising solution for uplink mobile fronthaul in high-frequency bands.
This study compares the performance of photonic downconversion technology using single and dual wavelength modulation methods using an optical phase modulator. We compared the system characteristics, including the conversion gain, phase noise, and spurious-free dynamic range, of the two approaches. To demonstrate the proof-of-concept, we transmitted high-order quadrature amplitude modulation orthogonal frequency-division multiplexing signals in the 43 and 52 GHz bands over the system. The results confirm the potential of the system as a promising solution for uplink mobile fronthaul in high-frequency bands, such as in 5G-Advanced networks.
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