GOPEX: a laser uplink to the Galileo spacecraft on its way to Jupiter

Wilson, Keith E.; Lesh, James R.; Yan, Tsun-Yee

doi:10.1117/12.149251

Cited by 19 publications

(5 citation statements)

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“…Therefore, telescope mirrors are designed in order to maximize the reflection around this region. Although FSOC can take place around the Cherenkov spectrum [10], the most probable wavelength to be implanted in this kind of link in the future is 1550 nm because of multiple reasons, such as the amount of technology developed for the optical fiber 3rd window and less-adverse effects in atmospheric propagation compared to shorter wavelengths. Most relevant space agencies agree on this [11], hence in this paper only this wavelength has been taken into account.…”

Section: Iact Mirrorsmentioning

confidence: 99%

Feasibility of utilizing Cherenkov Telescope Array gamma-ray telescopes as free-space optical communication ground stations

et al. 2013

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The signals that will be received on Earth from deep-space probes in future implementations of free-space optical communication will be extremely weak, and new ground stations will have to be developed in order to support these links. This paper addresses the feasibility of using the technology developed in the gamma-ray telescopes that will make up the Cherenkov Telescope Array (CTA) observatory in the implementation of a new kind of ground station. Among the main advantages that these telescopes provide are the much larger apertures needed to overcome the power limitation that ground-based gamma-ray astronomy and optical communication both have. Also, the large number of big telescopes that will be built for CTA will make it possible to reduce costs by economy-scale production, enabling optical communications in the large telescopes that will be needed for future deep-space links.

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Section: Iact Mirrorsmentioning

confidence: 99%

Feasibility of utilizing Cherenkov Telescope Array gamma-ray telescopes as free-space optical communication ground stations

et al. 2013

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“…Lasercom demonstrations have been carried out in a wide variety of scenarios, e.g. deep space-to-ground [2], ground-to-deep space [3], LEO-to-ground [4] [5], LEO-to-LEO [6], GEO-to-ground [7] [8], GEO-to-LEO [9] [10], GEO-to-aircraft [11], aircraft-to-ground [12] [13], aircraft-to-aircraft [14] and balloon-to-balloon [15], and a number of projects are projected for future demonstrations [16] [17] [18] [19] [20] [21].…”

Section: Introductionmentioning

confidence: 99%

LEO-to-ground optical communications using SOTA (Small Optical TrAnsponder) – Payload verification results and experiments on space quantum communications

et al. 2017

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Free-space optical communications have held the promise of revolutionizing space communications for a long time. The benefits of increasing the bitrate while reducing the volume, mass and energy of the space terminals have attracted the attention of many researchers for a long time. In the last few years, more and more technology demonstrations have been taking place with participants from both the public and the private sector. The National Institute of Information and Communications Technology (NICT) in Japan has a long experience in this field. SOTA (Small Optical TrAnsponder) was the last NICT space lasercom mission, designed to demonstrate the potential of this technology applied to microsatellites. Since the beginning of SOTA mission in 2014, NICT regularly established communication using the Optical Ground Stations (OGS) located in the Headquarters at Koganei (Tokyo) to receive the SOTA signals, with over one hundred successful links. All the goals of the SOTA mission were fulfilled, including up to 10-Mbit/s downlinks using two different wavelengths and apertures, coarse and fine tracking of the OGS beacon, space-to-ground transmission of the on-board-camera images, experiments with different error correcting codes, interoperability with other international OGS, and experiments on quantum communications. The SOTA mission ended on November 2016, more than doubling the designed lifetime of 1-year. In this paper, the SOTA characteristics and basic operation are explained, along with the most relevant technological demonstrations.

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“…NASA's Jet Propulsion Laboratory (JPL) had conducted Galileo Optical Experiment (GOPEX), a deep space communications experiment, successfully sending optical data to deep space Galileo spacecraft over 6 million km in 1992 and the European Space Agency demonstrated intersatellite communications through the Semiconductor Laser InterSatellite Link Experiment (SILEX) using low earth orbit (LEO) satellite SPOT-4 and geostationary orbit (GEO) satellite ARTEMIS in 2001 [3] [4]. Japan Aerospace Exploration Agency had also successfully established optical intersatellite communications between ARTEMIS and their developed Optical Inter-orbit Communications Engineering Test Satellite (OICETS) in 2005 [5].…”

Section: Introductionmentioning

confidence: 99%

Beam divergence shaping mechanism in laser intersatellite crosslink system

Heng

Liu

et al. 2007

2007 6th International Conference on Information, Communications &Amp; Signal Processing

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Laser intersatellite crosslink is a promising choice for intersatellite communications due to the high data rate that can be achieved with the advantages of light weight, smaller size and lower power consumption. The establishment of the line of sight (LOS) between the satellites can be a complex task due to the narrow laser beam to be used over long distances between satellite platforms. We examine the effects of varying short range separation distances between two low earth orbit (LEO) satellites in a satellite formation flying cluster with respect to the link budget and beam divergence. Then, we propose a beam divergence shaping mechanism to tackle the varying distance problem.

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GOPEX: a laser uplink to the Galileo spacecraft on its way to Jupiter

Cited by 19 publications

References 0 publications

Feasibility of utilizing Cherenkov Telescope Array gamma-ray telescopes as free-space optical communication ground stations

Feasibility of utilizing Cherenkov Telescope Array gamma-ray telescopes as free-space optical communication ground stations

LEO-to-ground optical communications using SOTA (Small Optical TrAnsponder) – Payload verification results and experiments on space quantum communications

Beam divergence shaping mechanism in laser intersatellite crosslink system

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