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Passive optical gyroscope with double homodyne readout
Name
1812.03336.pdf
Description
Submitted version
Size
592.59 KB
Format
Adobe PDF
Checksum (MD5)
e76cb91d80011b15101173d038952e0c
Author(s)
Martynov, Denis
Brown, Nicolas
Nolasco-Martinez, Eber
Evans, Matthew
Journal
Optics Letters
Publisher
The Optical Society
Version
Original manuscript
Abstract
© 2019 Optical Society of America We present a passive, resonant, single-frequency gyroscope design that utilizes polarization modes of an optical cavity to readout rotation and generate a laser frequency discriminant. This design is notable for its simplicity, requiring no modulation electronics or frequency counters. We extract both the cavity length signal and rotation signal from two copropagating beams with orthogonal polarizations. This readout scheme can be applied to an optical cavity whose polarization eigenmodes experience different phase shifts such as fiber rings, whispering gallery mode resonators, and folded free-space cavities. We apply this technique to the passive free-space gyroscope and achieve a bias stability of 0.03°/h and a sensitivity of 5 × 10 −8 rad∕s∕ p Hz above 1 Hz, with a cavity of area 400 cm 2 and finesse of 10 4
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
10.1364/OL.44.001584
