A dual-spectra pulse oximeter sensor is provided. The dual-spectra pulse oximeter sensor includes a sensor substrate, an array of a plurality of pairs of wavelength sources disposed on the sensor substrate, and a plurality of wavelength conversion devices. Further, each pair of the plurality of pairs of wavelength sources comprises a pair of light emitting diodes. Moreover, one light emitting diode of each pair of light emitting diodes is operatively coupled to a wavelength conversion device of the plurality of wavelength conversion devices.
