Experimental test of a prototype gravitational radiation detector employing an active cavity laser sensor

Autor:	Z. Vager, M. Weksler, A. Abramovici
Rok vydání:	1986
Předmět:	Physics Heterodyne business.industry Gravitational wave Detector General Engineering General Physics and Astronomy Laser Noise (electronics) Particle detector law.invention Optics law Astronomical interferometer General Materials Science Spontaneous emission business Instrumentation
Zdroj:	Journal of Physics E: Scientific Instruments. 19:182-188
ISSN:	0022-3735
DOI:	10.1088/0022-3735/19/3/003
Popis:	A prototype gravitational radiation detector which uses two small He-Ne lasers in a heterodyne arrangement for displacement sensing has been built and tested. Operation of the system at the theoretical noise limit determined by spontaneous emission has been achieved. Above 2 kHz, the noise has a flat spectrum and is equivalent to displacements of 3*10-15 cm Hz-12/. It is shown that small active-cavity systems can be competitive with long-baseline Michelson interferometers when the high-quality mirrors and high-gain amplifying media are used.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1ac074ff51da9fcb8dd1731422bdc180 https://doi.org/10.1088/0022-3735/19/3/003 Zobrazit plný text záznamu