Computational spectral-domain single-pixel imaging

TL;DR

This paper introduces a spectral-domain single-pixel imaging technique that encodes Fourier patterns onto a laser diode spectrum, enabling remote broadband measurements with potential industrial, biological, and security applications.

Contribution

It presents a novel method for spectral imaging using a programmable optical filter to encode Fourier patterns onto a laser spectrum, demonstrating its effectiveness in measuring wavelength-dependent transmission.

Findings

Successful measurement of wavelength-dependent transmission in a Michelson interferometer

Effective encoding of Fourier patterns onto laser spectrum

Potential for remote broadband spectral measurements

Abstract

We demonstrate single-pixel imaging in the spectral domain by encoding Fourier probe patterns onto the spectrum of a superluminescent laser diode using a programmable optical filter. As a proof-of-concept, we measure the wavelength-dependent transmission of a Michelson interferometer and a wavelength-division multiplexer. Our results open new perspectives for remote broadband measurements with possible applications in industrial, biological or security applications.