Optical Suppression of Tilt-to-Length Coupling in the LISA Long-Arm Interferometer
نویسندگان
چکیده
منابع مشابه
LISA long-arm interferometry
Laser frequency noise is a significant noise source which couples into the main science measurement of the Laser Interferometer Space Antenna via the mismatch between the interferometer arm lengths. In this paper we discuss the application of an unequal pathlength heterodyne Mach–Zehnder interferometer to measure and actively stablize the master laser frequency as used in LISA Pathfinder. In co...
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The coupling between beam tilt and longitudinal path length readout in a setup representing a LISA test mass interferometer was reduced to below 2 µm/rad using a two lens imaging system. This was achieved by the use of a homodyne equal arm-length Mach-Zehnder interferometer and suppression of the dominating effects of higher order Gaussian modes and longitudinal actuator movement. The latter wa...
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ژورنال
عنوان ژورنال: Physical Review Applied
سال: 2020
ISSN: 2331-7019
DOI: 10.1103/physrevapplied.14.014030