Successful testing of the LISA Technology Package (LTP) interferometer engineering model
- Heinzel, G.
- Braxmaier, C.
- Caldwell, M.
- Danzmann, K.
- Draaisma, F.
- Garcia, A.
- Hough, J.
- Jennrich, O.
- Johann, U.
- Killow, C.
- Middleton, K.
- te Plate, M.
- Robertson, D.
- Rudiger, A.
- Schilling, R.
- Steier, F.
- Wand, V.
- Ward, H.
DOIAbstract
The LISA Technology Package (LTP), to be launched by ESA in 2008, is a technology demonstration mission in preparation for the LISA space-borne gravitational wave detector. A central part of the LTP is the optical metrology package (heterodyne interferometer with phasemeter) that measures the distance between two test masses with a noise level of 10 pm Hz−1/2 between 3 mHz and 30 mHz and also the test mass alignment with a noise level of <10 nrad Hz−1/2. An engineering model of the interferometer has been built and environmentally tested. Extensive functionality and performance tests were conducted. This paper reports on the successful test results
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