Online polarization error suppressed optical vector analyzer based on Bayesian optimization.
Opt Lett
; 48(8): 2174-2177, 2023 Apr 15.
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| MEDLINE
| ID: mdl-37058670
ABSTRACT
An optical vector analyzer (OVA) based on orthogonal polarization interrogation and polarization diversity detection is widely used to measure an optical device's loss, delay, or polarization-dependent features. Polarization misalignment is the OVA's primary error source. Conventional offline polarization alignment using a calibrator greatly reduces the measurement reliability and efficiency. In this Letter, we propose an online polarization error suppression method using Bayesian optimization. Our measurement results are verified by a commercial OVA instrument that uses the offline alignment method. The OVA featuring online error suppression will be widely used in the production of optical devices, not just in the laboratory.
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MEDLINE
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Opt Lett
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2023
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Article