Wearable module assemblies for an optical measurement system

A wearable module assembly for an optical measurement system, the wearable module assembly comprising:

• a first wearable module comprising:
• a first light source configured to emit a first light pulse toward a target within a body of a user;
• and
• a plurality of first detectors each positioned at a fixed distance from the first light source and each configured to detect a first set of photons included in the first light pulse after the first set of photons are scattered by the target;
• a second wearable module comprising:
• a second light source configured to emit a second light pulse toward the target;
• and
• a plurality of second detectors each positioned at the fixed distance from the second light source and each configured to detect a second set of photons included in the second light pulse after the second set of photons are scattered by the target;
• and
• a connecting assembly that physically connects the first wearable module with the second wearable module.