Interferometer, demodulator, and splitting element

Details Interferometer, demodulator, and splitting element Interferometer, demodulator, and splitting element

2011-01-04

2011-01-04

Chowdhury, Tarifur (Department: 2886)

Optics: measuring and testing

By light interference

C359S583000

Reexamination Certificate

active

07864325

ABSTRACT:
An interferometer of the invention includes: a first splitting element which includes a first transparent medium and a first splitting film formed on the first transparent medium, and which splits incident light into a first split beam and a second split beam, the first split beam being the incident light reflected by the first splitting element and the second split beam being the incident light transmitted through the first splitting element; and a second splitting element which includes a second transparent medium and a second splitting film formed on the second transparent medium, and which causes interference between the first split beam and the second split beam passed through different optical paths, the second splitting element being positioned such that a positional relationship between the second transparent medium and the second splitting film with respect to a direction of incidence on the second splitting element of the first split beam is opposite to a positional relationship between the first transparent medium and the first splitting film with respect to a direction of incidence of the incident light on the first splitting element.

REFERENCES:
patent: 6233054 (2001-05-01), Thériault
patent: 6369951 (2002-04-01), Spanner
patent: 7187871 (2007-03-01), Kaushik
patent: 2004/0263990 (2004-12-01), Hsieh
patent: 41 27 548 (1993-02-01), None
patent: 0 236 137 (1987-09-01), None
patent: 1 031 868 (2000-08-01), None
patent: 2005-234346 (2005-09-01), None
patent: WO 02/51041 (2002-06-01), None
patent: 2006/091866 (2006-08-01), None
European Communication with Search Report dated Nov. 18, 2008, issued in corresponding EP Application No. 08005533.8, 5 pages.
EP Communication, dated Jul. 3, 2009, issued in corresponding EP Application No. 08005533.8, 4 pages.
Thelen, Alfred, “Nonpolarizing interference films inside a glass cube,” Applied Optics, Dec. 1976, vol. 15, No. 12, pp. 2983-2985.

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