A hyperfine-transition-referenced vector spectrum analyzer for visible-light integrated photonics.

ABSTRACT: Integrated photonics has been successfully established in the near-infrared (NIR) telecommunication bands. With the soaring demand in biosensing, quantum information and transportable atomic clocks, extensive endeavors have been stacked on translating integrated photonics into the visible spectrum. Demonstrations of visible-light lasers, frequency combs, and atom traps highlight the prospect of creating chip-based optical atomic clocks that can make timing and metrology ubiquitous. A pillar to the development of visible-light integrated photonics is characterization techniques featuring high frequency resolution and wide spectral coverage, which however remain elusive. Here, we demonstrate a vector spectrum analyzer (VSA) for visible-light integrated photonics, offering spectral bandwidth

SUBMITTER: Shi B 

PROVIDER: S-EPMC12313864 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature