On-Chip Mach-Zehnder-Like Interferometer for Atomic Spin Precession Detection

On-Chip Mach-Zehnder-Like Interferometer for Atomic Spin Precession Detection

Blog Article

At present, most atomic spin precession detection schemes use discrete optical elements, which lead to bulky detection systems.However, chip-based spin precession detection schemes lack modulation, resulting in lower detection sensitivity.In this paper, we propose and simulatively demonstrate an integrated atomic spin precession detection scheme using an on-chip Mach-Zehnder-like interferometer.An on-chip polarization sorter is designed, with retainer contrast ratio of 24 dB and coupling efficiency of 16.

8% at 795 nm.With this device, linearly polarized probe light that experienced optical D-MANNOSE POWDER rotation can be split and coupled into two waveguide arms of the interferometer.To avoid the effect of low frequency noise, our scheme uses a micro-heater to modulate the phase difference signal, allowing for high sensitivity detection.The whole detection system can reach micron size, which provides a practical new technique for high precision atomic sensors that can be integrated into chips.