Zusammenfassung: | |
The LISA phase measurement system (PMS) will provide interferometric phase readout of the primary heterodyne signal at microcycle sensitivity, ranging measurements at sub-meter accuracy and data communication at rates of several kilobits per seconds. Our investigations are focused on inter-spacecraft laser ranging and data transfer for LISA using Direct Sequence Spread Spectrum (DS/SS) modulation onto the laser links. We present the setup of an optical experimental to test the levels of performance achievable with a single laser link as well as a new hardware prototype based on FPGA (Field Programmable Gate Array) processing to perform high-accuracy phase readout of the optical signal, ranging measurements, data communication and is suitable for clock noise demodulation and digital laser-phase locking.
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Lizenzbestimmungen: | CC BY 3.0 Unported - https://creativecommons.org/licenses/by/3.0/ |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2010 |
Schlagwörter (deutsch): | Gravitationswelle |
Schlagwörter (englisch): | Data-communication, Direct sequence spread spectrum, Hardware prototype, Heterodyne signals, High-accuracy, Interferometric phase, Laser links, Laser ranging, Meter accuracy, Optical signals, Phase measurement systems, Phase-locking, Single lasers, Convolutional codes, Data transfer, Field programmable gate arrays (FPGA), Gravitational effects, Gravity waves, Optical communication, Spectroscopy, Phase measurement |
Fachliche Zuordnung (DDC): | 530 | Physik |
Kontrollierte Schlagwörter: | Konferenzschrift |
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