Techniques for measurement path multiplexing for a wearable device

A wearable device, comprising:

• a light-emitting component configured to generate light associated with one or more wavelengths;
• a plurality of photodetectors configured to receive the light emitted by the light-emitting component through a tissue of a user;
• and
• one or more processing components communicatively coupled with the light-emitting component and the plurality of photodetectors, wherein the one or more processing components are configured to:
• transmit, using the light-emitting component, first light associated with a wavelength, wherein the first light is transmitted into the tissue of the user via a first transmission angle that is based at least in part on a first location of a first photodetector of the plurality of photodetectors;
• receive the first light using the first photodetector;
• transmit, using the light-emitting component, second light associated with the wavelength, wherein the second light is transmitted into the tissue of the user via a second transmission angle that is based at least in part on a second location of a second photodetector of the plurality of photodetectors;
• receive the second light using the second photodetector;
• and
• acquire physiological data associated with the user based at least in part on reception of the first light via the first photodetector and reception of the second light via the second photodetector.

A method at a wearable device, comprising:

• transmitting first light using a light-emitting component of the wearable device, the first light associated with a first wavelength, wherein the first light is transmitted into a tissue of a user via a first transmission angle that is based at least in part on the first wavelength;
• transmitting second light using the light-emitting component of the wearable device, the second light associated with a second wavelength, wherein the second light is transmitted into the tissue of the user via a second transmission angle different from the first transmission angle that is based at least in part on the second wavelength;
• receiving the first light and the second light using a photodetector;
• and
• acquiring physiological data associated with the user based at least in part on reception of the first light and the second light.