AI Article Synopsis
- Cyclic errors from optical leakage affect the accuracy of displacement measurements in optical interferometers.
- A new real-time method for estimating leakage components has been developed, enabling a passive technique to suppress cyclic nonlinearities.
- This technique successfully reduced the cyclic error from 3 nanometers to 300 picometers in an interferometer using a 1320 nm wavelength.
Article Abstract
Cyclic errors that are due to optical leakage limit the precision of displacement measurements made with optical interferometers. A method for real-time estimation of leakage components is introduced and is used to implement a novel passive technique for suppression of cyclic nonlinearities that uses only adjustments of existing polarizers and quarter-wave plates. This approach is used to reduce the cyclic error from 3 nm to 300 pm for an interferometer operating at a wavelength of 1320 nm.
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| http://dx.doi.org/10.1364/ol.27.000797 | DOI Listing |
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