Medical sensor with temperature control

A method comprising:

• receiving data indicative of a peak wavelength of light emitted by one or more light sources at a monitor;
• determining, using a processor of the monitor, a target temperature for aligning the peak wavelength of light emitted by the one or more light sources with a calibration wavelength corresponding to a calibration profile of the monitor;
• detecting a temperature of the one or more light sources and comparing the detected temperature of the one or more light sources to the target temperature to determine a temperature adjustment;
• and
• adjusting operation of a temperature control element that provides cooling or heating to the one or more light sources based on the temperature adjustment to achieve the target temperature.

A method comprising:

• receiving data indicative of a peak wavelength of light emitted by one or more light sources at a monitor;
• determining, using a processor of the monitor, a target temperature for aligning the peak wavelength of light emitted by the one or more light sources with a calibration wavelength corresponding to a calibration profile of the monitor, wherein determining the target temperature comprises comparing the peak wavelength of the one or more light sources to the calibration wavelength;
• and
• adjusting operation of a temperature control element that provides cooling or heating to the one or more light sources to achieve the target temperature.

A system comprising:

• a sensor comprising:
• one or more light sources configured to emit one or more wavelengths of light corresponding to physiological parameters of a patient;
• an encoder storing data indicative of one or more peak wavelengths of light emitted by the one or more light sources;
• a thermoelectric element configured to provide cooling or heating to the one or more light sources to regulate the wavelengths of light emitted by the one or more light sources;
• a monitor comprising:
• a decoder configured to receive the data indicative of the one or more peak wavelengths of light emitted by the one or more light sources;
• a processor configured to determine a target temperature for aligning the one or more peak wavelengths of light emitted by the one or more light sources with a calibration wavelength corresponding to a calibration profile of the monitor, to detect a temperature of the one or more light sources, and to compare the detected temperature of the one or more light sources to the target temperature to determine a temperature adjustment;
• and
• a controller configured to adjust an amount of cooling or heating provided by the thermoelectric element based on the temperature adjustment to maintain the one or more light sources at the target temperature.