LISA Pathfinder: OPD loop characterisation

The optical metrology system (OMS) of the LISA Pathfinder mission is measuring the distance between two free-floating test masses with unprecedented precision. One of the four OMS heterodyne interferometers reads out the phase difference between the reference and the measurement laser beam. This pha...

Descripción completa

Detalles Bibliográficos
Autores: Born, M., Armano, M., Audley, H., Auger, G., Baird, J., Bassan, M., Binetruy, P., Bortoluzzi, D., Brandt, N., Caleno, M., Cavalleri, A., Cesarini, A., Cruise, A. M., Cruise, M., Danzmann, K., de Deus Silva, M., De Rosa, R., Di Fiore, L., Diepholz, I., Dolesi, R., Dunbar, N., Ferraioli, Luigi, Ferroni, V., Fitzsimons, E. D., Flatscher, R., Freschi, M., García Marirrodriga, C., Gerndt, R., Gesa, L., Gibert, F., Giardini, D., Giusteri, R., Grado, A., Grimani, C., Grzymisch, J., Harrison, I., Heinzel, G., Hewitson, M., Hollington, D., Hoyland, D., Hueller, M., Inchauspé, H., Jennrich, O., Jetzer, P., Johlander, B., Karnesis, N., Kaune, B., Korsakova, N., Killow, C. J., Lobo, A., Lloro, I., Liu, L., López Zaragoza, J. P., Maarschalkerweerd, R., Mance, D., Martín, V., Martín Polo, L., Martino, J., Martín Porqueras, F., Madden, S., Mateos, I., McNamara, P. W., Mendes, J., Mendel, L., Nofrarias, M., Paczkowski, S., Perreur Lloyd, M., Petiteau, A., Pivato, P., Plagnol, E., Prat, P., Ragnit, U., Ramos Castro, J., Reiche, J., Robertson, D. I., Rozemeijer, H., Rivas García, Francisco, Russano, G., Sarra, P., Schleicher, A., Shaul, D., Slutsky, J., Sopuerta, C. F., Stanga, R., Sumner, T., Texier, D., Thorpe, J. I., Trenkel, C., Troebs, M., Vetrugno, D., Vitale, S., Wanner, G., Ward, H., Wass, P. J., Wealthy, D., Weber, W. J., Wissel, L., Wittchen, A., Zambotti, A., Zanoni, C., Ziegler, T., Zweifel, P., LPF Collaboration
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad Loyola Andalucía
Repositorio:Brújula
OAI Identifier:oai:repositorio.uloyola.es:20.500.12412/4726
Acceso en línea:https://hdl.handle.net/20.500.12412/4726
Access Level:acceso abierto
Palabra clave:Interferometers
Control loop
Ground measurements
Heterodyne interferometer
LISA Pathfinder
Loop parameters
Optical Metrology
Optical pathlength differences
Phase difference
Space probes
Descripción
Sumario:The optical metrology system (OMS) of the LISA Pathfinder mission is measuring the distance between two free-floating test masses with unprecedented precision. One of the four OMS heterodyne interferometers reads out the phase difference between the reference and the measurement laser beam. This phase from the reference interferometer is common to all other longitudinal interferometer read outs and therefore subtracted. In addition, the phase is fed back via the digital optical pathlength difference (OPD) control loop to keep it close to zero. Here, we analyse the loop parameters and compare them to on-ground measurement results.

Similares en LA Referencia