Abstract
We demonstrate the first fiber-millimeter-wave-fiber system in the 100-GHz band using a low-loss optical modulator and direct photonic down-conversion technology. The utilization of a low-loss optical modulator for the direct conversion of a millimeter-wave signal to an optical signal significantly simplifies the millimeter-wave radio receiver because it includes only a radio front-end and an optical modulator. In addition, by adopting direct photonic down-conversion technology for simultaneous detection and down-conversion of the millimeter-wave signal to the microwave band, the fiber-radio receiver and subsequent digital signal processing can be considerably simplified. Using the proposed technologies, we successfully transmitted 32-/64-quadrature amplitude modulation orthogonal frequency division multiplexing and single-carrier signal with a line rate of 71.4 Gb/s and a net data rate of 53.7 Gb/s over a wired and wireless converged system consisting of two optical fiber links and a 20 m radio link at 101 GHz. The proposed system is promising for high-capacity, low-latency, and low-power consumption fiber-wireless transmission in beyond 5G networks.
| Original language | English |
|---|---|
| Pages (from-to) | 1483-1493 |
| Number of pages | 11 |
| Journal | Journal of Lightwave Technology |
| Volume | 40 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2022 Mar 1 |
Keywords
- Beyond 5G
- broadband optical modulator
- millimeter-wave
- mobile fronthaul
- mobile fronthaul
- radio-over-fiber
- radio-over-fiber
- seamless
- seamless fibera wirelessa fiber system
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics