A nonincremental interferometer is shown in which the dynamical spectral filtering of a superluminescent source induces a broadband sinusoidal frequency modulation. The method reaches very high resolution limits in distance measurements (a theoretical expectation of 10-12 m/√Hz is obtained) while maintaining all the advantages of heterodyne phase-recovery processing. Comparison with other nonincremental interferometric approaches is given.

High-resolution distance measurement by dynamical spectral filtering of a superluminescent source

MARTINELLI, MARIO
1991-01-01

Abstract

A nonincremental interferometer is shown in which the dynamical spectral filtering of a superluminescent source induces a broadband sinusoidal frequency modulation. The method reaches very high resolution limits in distance measurements (a theoretical expectation of 10-12 m/√Hz is obtained) while maintaining all the advantages of heterodyne phase-recovery processing. Comparison with other nonincremental interferometric approaches is given.
1991
Interferometer
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/657970
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