Identification of the mode, polarization, wavelength and intensity of light using a one-pixel device on an optical fibre tip (opens in new tab)

The in situ monitoring of different parameters of light is important for the development of high-capacity information technology. However, the number of light states increases exponentially as parameters are added, and conventional detection systems must split light signals into numerous channels and photodetectors using bulky optics. Here we report a one-pixel device that is integrated on an optical fibre tip and can simultaneously resolve the mode, polarization, wavelength and intensity of ...