Demonstration of 1.72 Tbit/s Optical Data Transmission Under Worst-Case Turbulence Conditions for Ground-to-Geostationary Satellite Communications

Poliak, Juraj; Calvo, Ramon Mata; Rein, Fabian

doi:10.1109/lcomm.2018.2847628

Cited by 38 publications

(15 citation statements)

References 11 publications

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“…Although it is well known that AO works for a downlink, pre-correction AO has not been tested over a relevant link distance with optical turbulence. Since high throughput data communication over a turbulence channel is known to be feasible [8], data communication functionality is omitted for these tests. Instead, the breadboard tests will focus on the full AO correction chain for a bi-directional link.…”

Section: Test Descriptionmentioning

confidence: 99%

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Adaptive optics pre-correction for optical feeder links: breadboard performance

Saathof

Breeje²,

Klop³

et al. 2019

International Conference on Space Optics — ICSO 2018

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For the next generation of very high throughput communication satellites, TNO and DLR envision optical free-space communication between ground stations and geostationary telecommunication satellites to replace the traditional RF links. To mitigate atmospheric turbulence, an Adaptive Optics (AO) system will be used to apply uplink pre-correction. OFELIA, an ground terminal breadboard was developed to demonstrate the pre-correction principle over an realistic link. Currently, integration tests have been performed to verify the AO performance. Also a laser link experiment over 10 km distance has already been established, in a scenario relevant to ground-to-satellite links. The paper shows that AO is clearly beneficial for the downlink performance. In addition the first preliminary experimental results of the pre-correction show it is also beneficial for the uplink.

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Section: Test Descriptionmentioning

confidence: 99%

“…The FSM and DM are placed into the common path of the Tx and Rx beam. Figure 3 shows the STB, which is adopted from the THRUST testbed [8]. The receive aperture and transmit aperture are separated to account for the PAA.…”

Section: Icso 2018 International Conference On Space Opticsmentioning

confidence: 99%

Adaptive optics pre-correction for optical feeder links: breadboard performance

Saathof

Breeje²,

Klop³

et al. 2019

International Conference on Space Optics — ICSO 2018

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“…The achievability of ultra-high transmission rates of Tb/s has been addressed in the literature for both wired and wireless systems [4]- [6]. Targeting digital subscriber line (DSL) applications, in [4], Shrestha The feasibility of Tb/s data rates has been actively studied for outdoor point-to-point free space optical (FSO) communications [7]- [9]. In [7], Ciaramella et al have presented experimental results for a terrestrial FSO link achieving a net data rate of 1.28 Tb/s over a distance of 212 m using 32 wavelength division multiplexing (WDM) channels centered at 1550 nm and direct detection.…”

Section: Introductionmentioning

confidence: 99%

A Tb/s Indoor Optical Wireless Backhaul System Using VCSEL Arrays

Kazemi

Sarbazi

Soltani

et al. 2020

2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications

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In this paper, the design of a multiple-input multiple-output (MIMO) optical wireless communication (OWC) link based on vertical cavity surface emitting laser (VCSEL) arrays is systematically carried out with the aim to support data rates in excess of 1 Tb/s for the backhaul of sixth generation (6G) indoor wireless networks. The proposed design combines direct current optical orthogonal frequency division multiplexing (DCO-OFDM) and a spatial multiplexing MIMO architecture. For such an ultrahigh-speed line-of-sight (LOS) OWC link with low divergence laser beams, maintaining alignment is of high importance. In this paper, two types of misalignment error between the transmitter and receiver are distinguished, namely, radial displacement error and orientation angle error, and they are thoroughly modeled in a unified analytical framework assuming Gaussian laser beams, resulting in a generalized misalignment model (GMM). The derived GMM is then extended to MIMO arrays and the performance of the MIMO-OFDM OWC system is analyzed in terms of the aggregate data rate. Novel insights are provided into the system performance based on computer simulations by studying various influential factors such as beam waist, array configuration and different misalignment errors, which can be used as guidelines for designing short range Tb/s MIMO OWC systems. Index Terms Indoor optical wireless communication (OWC), multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM), vertical cavity surface emitting laser (VCSEL) array, Terabit/s backhaul, generalized misalignment model (GMM).

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“…Although successful terabit/s data rate transmission from ground to a GEO satellite has not been reported yet, recently, there has been many efforts paving the way for that goal. During the project THRUST, the German Aerospace Center (DLR) demonstrated the feasibility of the dense wavelength division multiplexing (DWDM) technology over a worst‐case atmospheric channel, and have have set world‐records with a 1.72 Tbps transmission in 2016 13 and 13,16 Tbps in 2017 using commercial fiber‐based communication systems 14…”

Section: Introductionmentioning

confidence: 99%

Link budget assessment for GEO feeder links based on optical technology

Barrios

Dimitrov

Calvo

et al. 2020

Satell Commun Network

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Summary Nowadays, large geostationary orbit (GEO) satellites can offer capacities up to 260 Gbps. In the midterm, in order to cope with the forecasted traffic demand, multibeam high throughput satellite systems are already being deployed. Optical GEO feeder link technology may provide transmission data rates up to the order of several terabits per second by making use of wavelength division multiplexing schemes. This work identifies physical layer techniques that enable the transmission of DVB‐S2X RF modulated signals over optical carriers. The techniques reported here are the analog transparent (AT), digital transparent (DT), and the digital regenerative schemes, which require different satellite payload architectures. The effects of atmospheric turbulence over the traveling wave are addressed and discussed, along with a methodology to calculate the link budget in the feeder uplink channel. Link budget calculations for two different selected ground station locations are presented, for the both the AT and DT options. It is shown that for high altitude locations, the transmission using the AT and DT options works well. For midaltitude locations, typical 36 MHz signal are feasible, whereas for higher bandwidths, the DT option could work when an error correction code is used.

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Demonstration of 1.72 Tbit/s Optical Data Transmission Under Worst-Case Turbulence Conditions for Ground-to-Geostationary Satellite Communications

Cited by 38 publications

References 11 publications

Adaptive optics pre-correction for optical feeder links: breadboard performance

Adaptive optics pre-correction for optical feeder links: breadboard performance

A Tb/s Indoor Optical Wireless Backhaul System Using VCSEL Arrays

Link budget assessment for GEO feeder links based on optical technology

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