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2. LARAMOTIONS: a conceptual study on laser networks for near-term collision avoidance for space debris in the low Earth orbit

Author

Scharring, Stefan, Dreyer, Heiko, Wagner, Gerd, Kästel, Jürgen, Wagner, Paul, Schafer, Ewan, Riede, Wolfgang, Bamann, Christoph, Hugentobler, Urs, Lejba, Pawel, Suchodolski, Tomasz, Döberl, Egon, Weinzinger, Dietmar, Promper, Wolfgang, Flohrer, Tim, Setty, Srinivas, Zayer, Igor, Di Mira, Andrea, and Cordelli, Emiliano

Subjects
laser momentum transfer, debris nudging, space debris, laser ranging, laser tracking, collision avoidance, photon pressure, high power laser
Published
2021

3. LARAMOTIONS: a conceptual study on laser networks for near-term collision avoidance for space debris in the low Earth orbit

Author

Scharring, Stefan, primary, Dreyer, Heiko, additional, Wagner, Gerd, additional, Kästel, Jürgen, additional, Wagner, Paul, additional, Schafer, Ewan, additional, Riede, Wolfgang, additional, Bamann, Christoph, additional, Hugentobler, Urs, additional, Lejba, Pawel, additional, Suchodolski, Tomasz, additional, Döberl, Egon, additional, Weinzinger, Dietmar, additional, Promper, Wolfgang, additional, Flohrer, Tim, additional, Setty, Srinivas, additional, Zayer, Igor, additional, Di Mira, Andrea, additional, and Cordelli, Emiliano, additional

Published
2021
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4. Conceptual Study on Laser Networks for Near‐Term Collision Avoidance for Space Debris in the Low Earth Orbit

Author

Scharring, Stefan, Dreyer, Heiko, Wagner, Gerd, Kästel, Jürgen, Wagner, Paul, Schafer, Ewan, Riede, Wolfgang, Bamann, Christoph, Hugentobler, Urs, Lejba, Pawel, Suchodolski, Tomasz, Döberl, Egon, Weinzinger, Dietmar, Promper, Wolfgang, Flohrer, Tim, Setty, Srinivas, Zayer, Igor, Di Mira, Andrea, and Cordelli, Emiliano

Subjects
Laser tracking, Laser ranging, Space debris, Momentum transfer, High power lasers, Photon pressure
Published
2021

6. Radiation effects on astrometric CCDs at low operating temperatures

Author

Hopkinson, Gordon R., Short, Alexander, Vetel, Cyril, Zayer, Igor, and Holland, Andrew D.

Subjects
Charge coupled devices -- Research, Extraterrestrial radiation -- Research, Business, Electronics, Electronics and electrical industries
Abstract

Emission times of proton-induced traps and optical spot profiles have been measured at temperatures around--110[degrees]C for large format charge-coupled devices (CCDs), representative of those to be used for the Gala mission. There are at least seven trap species involved, with emission times in the range 0.3 [micro]s to 130 s and there is evidence fur charge re-trapping by fast traps. Trap filling using a charge injection gate is discussed. Index Terms--Charge-coupled device (CCD), charge transfer efficiency (CTE), displacement damage, Gaia, NIEL.

Published
2005

12. Implications of Sky Radiance On Deep-Space Optical Communication Links

Author

Shortt, Kevin, Giggenbach, Dirk, Dreischer, Thomas, Rivera de Luca, Carlos, Daddato, Robert, Di Mira, Andrea, and Zayer, Igor

Subjects
models, Physics::Space Physics, Satellitennetze, Astrophysics::Earth and Planetary Astrophysics, deep space, sky radiance, optical communication, detectors, Institut für Kommunikation und Navigation
Abstract

As the number of deep-space missions that are turning to optical communications to support science operations increases, system designers are taking a more in depth look at the link budgets that govern such links. Noise sources, such as the radiance arising from scattering in the Earth’s atmosphere and light reflected from planetary bodies in close visual proximity to spacecraft, become particularly critical given the photon-starved channels normally associated with deep-space links. In the case of the Earth’s atmosphere, sky radiance becomes a significant factor when considering daytime operations especially when operators need to support spacecraft contacts close to the Sun. This paper encapsulates the implications of sky radiance on deep-space optical communication scenarios and provides an overview of the current efforts underway in Europe to further quantify its impact on future mission operations.

Published
2014

13. Lunar Optical Communications Link (LOCL): Measurements of Received Power Fluctuations and Wavefront Quality

Author

Giggenbach, Dirk, Becker, Peter, Mata-Calvo, Ramon, Fuchs, Christian, Sodnik, Zoran, and Zayer, Igor

Subjects
KNOCGOP, atmospheric intensity scintillation, wavefront quality measurement, Satellitennetze, Lunar Optical Communication Link
Abstract

During the laser communication link experiments between NASA’s LADEE and ESA’s optical ground station on Tenerife island, DLR-IKN carried out received-power measurements using a highly sensitive power detector, and wavefront quality analysis using the focal speckle pattern method. This paper reports on the evaluation of power fluctuation statistics and wave-front quality under varying elevations, times of day, and lunar background light.

Published
2014

14. Results from a Lunar Laser Communication Experiment between NASA's LADEE Satellite and ESA's Optical Ground Station

Author

Sodnik, Zoran, Smit, Hans, Sans, Marc, Giggenbach, Dirk, Becker, Peter, Mata Calvo, Ramon, Fuchs, Christian, Zayer, Igor, Lanucara, Marco, Schulz, Klaus-Jürgen, Widmer, Johannes, Arnold, Felix, Alonso, Angel, and Montilla, Iciar

Subjects
KNOCGOP, Satellitennetze
Abstract

ESA’s optical ground station (OGS) participated in the Lunar Laser Communication Demonstration (LLCD) with the Laser Communication Space Terminal (LLST) onboard NASA’s Lunar Atmosphere and Dust Environmental Explorer (LADEE) satellite. The experiment demonstrated the capabilities of optical communication and of inter-agency cross-support for optical communication links. The OGS experimental campaign, which started on October 26 and lasted until November 20, consisted of four days of bidirectional link sessions followed by three days of no operation. Each individual link session lasted approximately 20 minutes and was repeated after two hours. Despite non optimal weather conditions multiple link sessions were performed. The paper describes the design of the transmit laser and data generation system as well as the receiver system. A special chapter is dedicated to lessons learned from transmitter/receiver alignment problems, which prevented the demonstration of data uplink and ranging from the OGS. Several possibilities to solve the alignment problem are discussed and the finally implemented solution is described.

Published
2014

16. Lunar Optical Communications Link Demonstration Between NASA's Ladee Spacecraft and ESA's Optical Ground Station

Author

Zayer, Igor, primary, Sodnik, Zoran, additional, Daddato, Robert J., additional, Lanucara, Marco, additional, Schulz, Klaus-Juergen, additional, Smit, Hans, additional, Sans, Marc, additional, Becker, Peter, additional, Giggenbach, Dirk, additional, Mata-Calvo, Ramon, additional, Fuchs, Christian, additional, and Rothman, Johan, additional

Published
2014
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19. Smart CMOS image sensor for lightning detection and imaging

Author

Rolando, Sébastien, primary, Goiffon, Vincent, additional, Magnan, Pierre, additional, Corbière, Franck, additional, Molina, Romain, additional, Tulet, Michel, additional, Bréart-de-Boisanger, Michel, additional, Saint-Pé, Olivier, additional, Guiry, Saïprasad, additional, Larnaudie, Franck, additional, Leone, Bruno, additional, Perez-Cuevas, Leticia, additional, and Zayer, Igor, additional

Published
2013
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22. Reduction of Electrical Crosstalk in Hybrid Backside Illuminated CMOS Imagers using Deep Trench Isolation

Author

Minoglou, Kyriaki, primary, de Munck, Koen, additional, Tezcan, Deniz Sabuncuoglu, additional, Borgers, Tom, additional, Ruythooren, Wouter, additional, Bogaerts, Jan, additional, Veltroni, Iacopo Ficai, additional, Zayer, Igor, additional, Meynart, Roland, additional, Bezy, Jean-Loup, additional, van Hoof, Chris, additional, and de Moor, Piet, additional

Published
2008
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23. Development of the CCDs for ESA GAIA cornerstone mission

Author

Holland, Andrew D., primary, Perryman, Michael A., additional, Vetel, Cyril, additional, Steward, Roy, additional, Hutchinson, Ian B., additional, Ambrosi, Richard M., additional, Smith, David R., additional, Bowring, Steve, additional, Burt, David J., additional, Eaton, Tim, additional, Morris, David G., additional, Poole, Peter, additional, Davancens, Robert, additional, Laborie, Anouk, additional, Pouny, Pierre, additional, Safa, Frederic, additional, Zayer, Igor, additional, and Short, Alexander D., additional

Published
2004
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24. Gaia astrometric CCDs and focal plane.

Author

Short, Alexander, Hopkinson, Gordon, Laborie, Anouk, Pouny, Pierre, Vetel, Cyril, Eaton, Tim, Steward, Roy, Holland, Andrew, Hutchinson, Ian, Smith, David, de Bruijne, Jos, Gare, Philip, Perryman, Michael, Sarri, Giuseppe, and Zayer, Igor

Published
2005
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25. XMM science simulator: EPIC mode performance issues

Author

Lumb, David H., primary, Bakker, J., additional, Beijersbergen, Marco W., additional, Brumfitt, J., additional, Galloway, K., additional, Jalota, L., additional, Jansen, Fred A., additional, Siddiqui, H., additional, Vacanti, Giuseppe, additional, and Zayer, Igor, additional

Published
1998
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