Spectral Switch Anomalies in Sagnac Interferometer with respect to Galilean Frame

TL;DR

This paper investigates spectral switch anomalies in a Sagnac interferometer, explaining the spectral shifts observed during rotation as a result of longitudinal Doppler effects on counter-propagating beams.

Contribution

It introduces a novel explanation for spectral anomalies in gyroscopic Sagnac interferometers based on Doppler shifts, enhancing understanding of their spectral behavior during rotation.

Findings

Spectral switch shifts are linked to longitudinal Doppler effects.

Spectral anomalies occur around specific spectral regions.

The study provides a new perspective on calibration issues in gyroscopic interferometers.

Abstract

We report the spectral switch shift around spectral anomalies in a gyroscopic Sagnac interferometer which is normally used to calibrate the angular momentum of a gyroscope. The spectral shift in the rotating gyroscope is explained with respect to the longitudinal Doppler shift of the counter propagating beams in the Sagnac interferometer.