Towards an optoacoustic polarization memory in a silica nanofiber

Stimulated Brillouin scattering (SBS) is a highly efficient nonlinear optical interaction between acoustic waves and light. It enables the mediation of spectrally fine radio-frequency signals, with potential applications in quantum signal processing. Here, we investigate the storage of the state of polarization of light in a silica optical nanofiber (ONF) that guides both optic and acoustic waves. It adds an extra degree of information to Brillouin optoacoustic memories. The ONF possesses multiple acoustic modes. We show promising results with read/write operation for a longitudinal acoustic mode and investigate the TR21 acoustic mode polarization sensitivity.