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

Yeh, Chien‐Hung; Lin, Wen–Piao; Luo, Chien-Ming; Xie, Yue-Ru; Chang, Yao‐Jen; Chow, Chi‐Wai

doi:10.1109/access.2019.2940898

Cited by 42 publications

(19 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Atmospheric turbulence and noise due to other lights are considered in bit error rate (BER) evaluation. With the deployment of doublet lenses between two buildings [18], [19], the BER and PAM4 eye diagrams perform well in this illustrated PAM4 FSO communication based on polarizationmultiplexing injection-locked VCSELs. This demonstrated 448-Gb/s PAM4 FSO communication affords a prominent one for its high aggregate transmission capacity and develops the scenario realized by integrating four-wavelength polarization-multiplexing with PAM4 modulation schemes.…”

Section: Introductionmentioning

confidence: 80%

A 448-Gb/s PAM4 FSO Communication With Polarization-Multiplexing Injection-Locked VCSELs Through 600 M Free-Space Link

Tsai

et al. 2020

IEEE Access

View full text Add to dashboard Cite

A 448-Gb/s four-level pulse amplitude modulation (PAM4) free-space optical (FSO) communication through 600 m free-space link was constructed, utilizing polarization-multiplexing injection-locked vertical-cavity surface-emitting lasers (VCSELs) for presentation. When uniting fourwavelength polarization-multiplexing and PAM4 modulation schemes, the transmission capacity of FSO communications is substantially multiplied, with an aggregate transmission rate of 448 Gb/s [56 Gb/s PAM4/wavelength × 4 wavelengths × 2 polarizations (x-and y-polarizations)]. The results show that four 1.55 µm VCSEL transmitters with injection locking technique are sufficiently powerful for 448 Gb/s PAM4 signal transmission. Adopting a tunable optical band-pass filter and a polarization beam splitter for wavelength filtering and polarization de-multiplexing, the polarized wavelengths are effectually filtered and de-multiplexed in each polarized state. As the polarization state is well preserved in the scenario over 600 m free-space transmission, a sophisticated polarization tracker is not required in this proposed FSO communication. High bit error rate performance and accepted PAM4 eye diagrams are attained through 600 m free-space transmission. The four-wavelength polarization-multiplexing PAM4 FSO communication established here reveals the prominent benefits of high aggregate transmission capacity and long-distance free-space link.

show abstract

Section: Introductionmentioning

confidence: 80%

A 448-Gb/s PAM4 FSO Communication With Polarization-Multiplexing Injection-Locked VCSELs Through 600 M Free-Space Link

Tsai

et al. 2020

IEEE Access

View full text Add to dashboard Cite

show abstract

“…In recent times, the capacity requirements of passive optical networks (PONs) for the fiber to the home (FTTH) are extended from 2.5 to 40 Gbit/s or even 100 Gbit/s, such as using time-division-multiplexing (TDM) [5], [6], wavelengthdivision-multiplexing (WDM) [7], [8] and time and wavelength-division-multiplexing (TWDM) access techniques [9], [10]. Furthermore, the fiber based PON networks also can be exploited to provide the backhaul and fronthaul connection for the millimeter wave (MMW) and free space optical (FSO) communications [11], [12]. Owing to some special geographical or environmental restrictions, the fiber lines cannot be provisioned and connected for signal connection in PON system [13].…”

Section: Introductionmentioning

confidence: 99%

Hybrid WDM FSO Fiber Access Network With Rayleigh Backscattering Noise Mitigation

et al. 2020

Self Cite

View full text Add to dashboard Cite

In the paper, we present and investigate an integrated wavelength-division-multiplexing (WDM) free space optical (FSO) fiber access network for 51 km long-reach connection. Here, the proposed network architecture also can mitigate Rayleigh backscattering (RB) interferometric beat noise. We employ symmetric 4 × 10 Gbit/s on-off keying (OOK) WDM-FSO downstream and upstream wavelengths for demonstration. According to the simulated and experimental results, the free space transmission length of 400 to 940 m can be achieved based on various WDM-FSO downstream signals and their corresponding power budget, when the wavelengths are without optical amplification. INDEX TERMS Free space optical (FSO) communication, passive optical network (PON), wavelengthdivision-multiplexing (WDM), Rayleigh backscattering (RB) noise mitigation, long-reach, on-off keying.

show abstract

“…To the author's understanding, this demonstration is the leading one that efficaciously builds a R/G/B PAM4 FSO-UWOC convergent system with a total transmission rate of 500 Gb/s. With the implementation of doublet lenses in FSO communications [19]- [21] and laser beam reducer/expander in UWOC links, excellent bit error rate (BER) performance and accepted PAM4 eye diagrams are attained in such demonstrated FSO-UWOC convergent system. Our former work built a 256-Gb/s PAM4 FSO-UWOC convergent system with a four-channel space-division-multiplexing (SDM) scheme [1].…”

Section: Introductionmentioning

confidence: 99%

500 Gb/s PAM4 FSO-UWOC Convergent System With a R/G/B Five-Wavelength Polarization-Multiplexing Scheme

Tsai

et al. 2020

IEEE Access

View full text Add to dashboard Cite

A 500-Gb/s four-level pulse amplitude modulation (PAM4) free-space optical (FSO)underwater wireless laser transmission (UWOC) convergent system over 100 m free-space transmission with either 10 m piped underwater link or 5 m turbid underwater link is established, employing a red/green/blue (R/G/B) five-wavelength polarization-multiplexing scheme as a demonstration for the first time. Integrating PAM4 modulation with five-wavelength polarization-multiplexing scheme, the channel capacity of FSO-UWOC convergent systems is significantly increased with an aggregate data rate of 500 Gb/s [50 Gb/s PAM4/wavelength × 5 wavelengths × 2 polarizations (p-and s-polarizations)]. Results reveal that five R/G/B laser diode (LD) transmitters with two-stage light injection and optoelectronic feedback techniques are capably adopted for 500 Gb/s PAM4 signal transmission. Compared with prior FSO-UWOC convergence and visible light communication using polarization-multiplexing R/G/B LDs, it shows a prominent one with the benefits of high aggregate transmission rate and long-range optical wireless link. Excellent bit error rate performance and accepted PAM4 eye diagrams are attained over a 110-m/105-m FSO-UWOC link. This demonstrated five-wavelength polarization-multiplexing FSO-UWOC convergent system is promising because it not only integrates free-space backbone with underwater optical wireless feeder, but it also substantially multiplies total channel capacity.

show abstract

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

Cited by 42 publications

References 18 publications

A 448-Gb/s PAM4 FSO Communication With Polarization-Multiplexing Injection-Locked VCSELs Through 600 M Free-Space Link

A 448-Gb/s PAM4 FSO Communication With Polarization-Multiplexing Injection-Locked VCSELs Through 600 M Free-Space Link

Hybrid WDM FSO Fiber Access Network With Rayleigh Backscattering Noise Mitigation

500 Gb/s PAM4 FSO-UWOC Convergent System With a R/G/B Five-Wavelength Polarization-Multiplexing Scheme

Contact Info

Product

Resources

About