WDM Free-Space Optical Communication System of High-Speed Hybrid Signals

Huang, Xu-Hong; Li, Chung-Yi; Lu, Hai‐Han; Su, Chung-Yen; Wu, You-Ruei; Wang, Zhen-Han; Chen, Yong-Nian

doi:10.1109/jphot.2018.2881701

Cited by 36 publications

(17 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The FSO link implements the free-space transmission by using a set of doublet lenses. A set of doublet lenses (doublet lens 1 and doublet lens 2) is utilized to emit laser beam from the ferrule of SMF to the free-space and to conduct laser beam from the free-space to the ferrule of SMF 34 . Thereafter, the 64 Gb/s optical VSB-PAM4 signal is split into two branches along the two orthogonally polarised sidebands utilizing a PC with a PBS.…”

Section: Methodsmentioning

confidence: 99%

A PDM-based bi-directional fibre-FSO integration with two RSOAs scheme

Tsai

Huang

et al. 2019

Sci Rep

Self Cite

View full text Add to dashboard Cite

A polarization-division-multiplexing (PDM)-based bi-directional fibre-free-space optical (FSO) integration with two reflective semiconductor optical amplifiers (RSOAs) scheme to efficiently wipe off the modulated data for upstream modulation is proposed and successfully demonstrated. For downstream modulation, a high-speed 128 Gb/s vestigial sideband (VSB)-four-level pulse amplitude modulation (PAM4) fibre-FSO integration is feasibly established. The transmission capacity is increased up to four times through PDM operation and VSB-PAM4 modulation. For uplink transmission, a 10 Gb/s non-return-to-zero fibre-FSO integration with two RSOAs scheme to effectually erase the downstream modulated data is practically constructed. The upstream performance exhibits noticeable enhancement by using of two RSOAs scheme to wipe off the modulated data clearly. Such illustrated PDM-based bi-directional 128 Gb/s (downstream)/10 Gb/s (upstream) fibre-FSO integration is shown to be prominent not only due to its enhancement in the convergence of fibre backhaul and optical wireless reach extender but also because of its benefit in bi-directional transmission for affording high transmission capacity with long-reach optical wireless link and improved upstream performance.

show abstract

Section: Methodsmentioning

confidence: 99%

A PDM-based bi-directional fibre-FSO integration with two RSOAs scheme

Tsai

Huang

et al. 2019

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…The critical aspect in the success of futuristic communication technologies and standards will be determined by the ease of their convergence with existing high-speed access networks, see [25]- [28]. In this direction it will be critical to highlight the works of, see [9], [28]- [29], where authors have put forward the idea of complimenting FSO systems with wavelength division multiplexing (WDM) to attain twin goals. Firstly, WDM is already a mature technology that has been widely used for capacity enhancement in conventional fiber links.…”

Section: Problem Statementmentioning

confidence: 99%

“…EDFA based amplification for optical fiber links is as of now a very refined technology with extensive research carried out for signal transmission in 1550 nm range, see [44]- [45]. Anticipating similar success, EDFA based amplification has been advocated for optical wireless links as well, see [22], [25], [29], [46]- [47]. Keeping the aforementioned assertions as a basis, we have proposed a multi-hop link with EDFA based amplify-and-forward (A-F) relay mechanism.…”

Section: Multi-hop Serial Transmissionmentioning

confidence: 99%

Multi-Hop Relay Based Free Space Optical Communication Link for Delivering Medical Services in Remote Areas

et al. 2020

View full text Add to dashboard Cite

Free Space Optical (FSO) communication links are although extremely vulnerable to atmospheric adversities, multi-hop relay transmission can however, significantly improve the link performance and reliability. This paper proposes 120 Gbps DP-16 QAM modulated multi-hop serial FSO link with coherent reception for delivering medical consultation services in remote and isolated locations. Considering the current situation wherein pandemic of highly infectious nature, COVID-19 has affected millions of people globally; doctors can use the proposed high-speed architecture for "contact-less" supervision of quarantined patients and suspects through video conferencing. Each relay terminal uses an all-optical amplify-and-forward technique with Erbium-doped fiber amplifier (EDFA) and gain optimization as its core elements. As a possible last-mile application for delivering medical/health care services, the proposed link has been evaluated for reliability by exposing the link to varied atmospheric conditions. Our results reveal that at target BER of 10 −5 , the useful communication link range of proposed multi-hop link increments by 1.8 kms as compared to direct link that operates under similar channel conditions. Furthermore, compared to results from recent literature on high-speed FSO [30], the proposed link shows enhancement in link range by approximately 0.7 km. The analysis also reveals that as the number of relay nodes increases, the error performance of the link for different atmospheric conditions approaches a state of convergence.

show abstract

“…replace the fiber access network [7], [8]. The FSO technology also has several benefits, such as high-speed and broad capacity, license-free, no electromagnetic interference (EMI) and signal confidentiality [9]. And the FSO capacity integrated in the PON network is also distributed from 1 to 40 Gbit/s.…”

Section: Introductionmentioning

confidence: 99%

Utilizing Single Lightwave for Delivering Baseband/FSO/MMW Traffics Simultaneously in PON Architecture

et al. 2019

View full text Add to dashboard Cite

In this work, we demonstrate an integrated optical baseband, free space optical (FSO) communication and millimeter-wave (MMW) traffics through the present passive optical network (PON) architecture by utilizing single wavelength for broadcasting triple-play services. In the execution, we exploit 10 Gbit/s on-off keying (OOK) modulation on 10 GHz Mach-Zehnder modulator (MZM) to produce the downstream baseband signal. And the 10 Gbit/s baseband signal also can cause FSO traffic within the forward error correction (FEC) target after 25 km fiber and 160 m free space transmissions. Moreover, we can utilize the fiber to the extension (FTTE) scheme to provide the 36.42 GHz MMW with 10 Gbit/s OOK data after 25 km fiber link and 8 km extended fiber transmission.INDEX TERMS Optical wireless communication (OWC), passive optical network (PON), millimeter-wave (MMW), free space optical (FSO).

show abstract

WDM Free-Space Optical Communication System of High-Speed Hybrid Signals

Cited by 36 publications

References 16 publications

A PDM-based bi-directional fibre-FSO integration with two RSOAs scheme

A PDM-based bi-directional fibre-FSO integration with two RSOAs scheme

Multi-Hop Relay Based Free Space Optical Communication Link for Delivering Medical Services in Remote Areas

Utilizing Single Lightwave for Delivering Baseband/FSO/MMW Traffics Simultaneously in PON Architecture

Contact Info

Product

Resources

About