OPTICAL INTERFEROMETER WITH SQUEEZED VACUUM AND REDUCED GUIDED-ACOUSTIC-WAVE BRILLOUIN SCATTERING NOISE - Patent 0619032

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EP 0 619 032 A1

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(43)	Date of publication:
	12.10.1994 Bulletin 1994/41

(21)	Application number: 93906030.0

(22)	Date of filing: 17.02.1993

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International Patent Classification (IPC):

G01B 9/ 02^{( . )}
G02F 1/ 35^{( . )}

G01J 9/ 02^{( . )}
G02F 1/ 21^{( . )}

(86)	International application number:
	PCT/US1993/001421

(87)	International publication number:
	WO 1994/005967 (17.03.1994 Gazette 1994/07)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

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Priority:

27.08.1992 GB 19920018235

(71)	Applicants:
	MASSACHUSETTS INSTITUTE OF TECHNOLOGY Cambridge, MA 02142-1324 (US) FUJITSU LABORATORIES LIMITED Kawasaki-shi, Kanagawa 211 (JP)

(72)	Inventor:
	SHIRASAKI, Masataka Belmont, MA 02178 (US)

(74)	Representative: Lehn, Werner, Dipl.-Ing., et al
	Hoffmann, Eitle & Partner, Patentanwälte, Arabellastrasse 4 D-81925 München D-81925 München (DE)

(54)	OPTICAL INTERFEROMETER WITH SQUEEZED VACUUM AND REDUCED GUIDED-ACOUSTIC-WAVE BRILLOUIN SCATTERING NOISE