Ontology highlight
ABSTRACT:
SUBMITTER: Wang H
PROVIDER: S-EPMC7109037 | biostudies-literature | 2020 Mar
REPOSITORIES: biostudies-literature
Nature communications 20200331 1
Exceptional points are singularities of open systems, and among their many remarkable properties, they provide a way to enhance the responsivity of sensors. Here we show that the improved responsivity of a laser gyroscope caused by operation near an exceptional point is precisely compensated by increasing laser noise. The noise, of fundamental origin, is enhanced because the laser mode spectrum loses the oft-assumed property of orthogonality. This occurs as system eigenvectors coalesce near the ...[more]