1.
Vallejo, Luis; Gonem, Omaro Fawzi Abdelhamid; Jin, Wei; Faruk, Md Saifuddin; Giddings, Roger Philip; Yi, Xingwen; Tang, Jianming
In: Optics Express, vol. 33, no. 1, pp. 604–618, 2025, ISSN: 1094-4087, (Publisher: Optica Publishing Group).
Abstract | Links | BibTeX | Tags: Fiber networks, Frequency division multiplexing, Laser sources, Optical access networks, Optical network architecture, Optical signals
@article{vallejo_experimental_2025,
title = {Experimental investigation of a seamlessly converged fiber-wireless access network employing free-running laser- and envelope detection-based mmWave generation and detection},
author = {Luis Vallejo and Omaro Fawzi Abdelhamid Gonem and Wei Jin and Md Saifuddin Faruk and Roger Philip Giddings and Xingwen Yi and Jianming Tang},
url = {https://opg.optica.org/oe/abstract.cfm?uri=oe-33-1-604},
doi = {10.1364/OE.532694},
issn = {1094-4087},
year = {2025},
date = {2025-01-01},
urldate = {2025-10-08},
journal = {Optics Express},
volume = {33},
number = {1},
pages = {604–618},
publisher = {Optica Publishing Group},
abstract = {Employing free-running laser/envelope detection-based millimeter wave (mmWave) signal generation/detection at remote radio heads (RRHs)/user equipment (UE) offers a cost-effective solution for seamlessly integrating existing intensity modulation-direct detection (IM-DD)-dominated optical access networks and wireless networks. Such fiber-wireless convergence enables a continuous flow of signals with varying characteristics between the baseband unit (BBU) and UE across fiber and wireless network segments without the need for optical-electrical-optical (O-E-O) conversions and digital signal processing (DSP) at intermediate nodes. In this paper, we extensively investigate the performance of such a fiber-wireless converged access network employing free-running laser/envelope detection-based mmWave generation/detection in an IM-DD-based 1.67 Gbit/s transmission system with 25 km standard single-mode fiber (SSMF) and 5 m @38 GHz mmWave wireless links. Experimental results demonstrate that both mmWave frequency tunability and adaptive mmWave network coverage are achievable by just dynamically and adaptively configuring the output wavelength and power of the RRH-embedded free-running laser. Additionally, envelope detection allows RRHs to use low-cost MHz-linewidth-level free-running lasers while maintaining excellent performance stability.},
note = {Publisher: Optica Publishing Group},
keywords = {Fiber networks, Frequency division multiplexing, Laser sources, Optical access networks, Optical network architecture, Optical signals},
pubstate = {published},
tppubtype = {article}
}
Employing free-running laser/envelope detection-based millimeter wave (mmWave) signal generation/detection at remote radio heads (RRHs)/user equipment (UE) offers a cost-effective solution for seamlessly integrating existing intensity modulation-direct detection (IM-DD)-dominated optical access networks and wireless networks. Such fiber-wireless convergence enables a continuous flow of signals with varying characteristics between the baseband unit (BBU) and UE across fiber and wireless network segments without the need for optical-electrical-optical (O-E-O) conversions and digital signal processing (DSP) at intermediate nodes. In this paper, we extensively investigate the performance of such a fiber-wireless converged access network employing free-running laser/envelope detection-based mmWave generation/detection in an IM-DD-based 1.67 Gbit/s transmission system with 25 km standard single-mode fiber (SSMF) and 5 m @38 GHz mmWave wireless links. Experimental results demonstrate that both mmWave frequency tunability and adaptive mmWave network coverage are achievable by just dynamically and adaptively configuring the output wavelength and power of the RRH-embedded free-running laser. Additionally, envelope detection allows RRHs to use low-cost MHz-linewidth-level free-running lasers while maintaining excellent performance stability.