What is it about?

Current limitations of the optical Sagnac effect visualisation are defined by the available traditional measurement techniques for optical field. New level of performance can be achieved by applying new direct and real-time measurement methods. We present both intensity domain and single-shot spectral domain real-time measurement approaches that allow high-sensitive and high-resolution measurements of slow angular rotation (down to 10-4 rad/sec).

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Why is it important?

The work opens up several new exciting perspectives for gyroscopic and accelerometer approaches. We believe that the suggested methodology can enhance the existing technologies, for example for aeroplane navigation, as well as enable newly emerging applications such as driverless cars, requiring much higher data acquisition rate than modern gyros can provide for safe autonomous navigation. Our results demonstrate the readiness of ultrafast laser gyroscopes to be used in highly specialised studies.


This paper is one example on how purely fundamental techniques can find applications in real world and potentially be integrated in everyday life. I always been excited with future impact! especially when initially the experiment in laser technology was built around bicycle wheel

maria chernysheva
Leibniz Institute of Photonic Technology

Read the Original

This page is a summary of: Real-time observation of the optical Sagnac effect in ultrafast bidirectional fibre lasers, APL Photonics, January 2020, American Institute of Physics,
DOI: 10.1063/1.5121723.
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