Where is the S23 fiber optic sensor located

The Samsung Galaxy S23 does not have a fiber optic sensor; its proximity and light sensors are located behind the display glass.

The Galaxy S23 integrates its proximity and ambient light sensors behind the display glass rather than using a visible cutout, allowing the phone to detect nearby objects and adjust screen brightness automatically based on ambient light conditions . The front camera uses a 12 MP CMOS image sensor, while the rear cameras include multiple modules (wide, telephoto, ultrawide) with associated optical sensors . These sensors are mounted on the camera PCB and are responsible for imaging and light detection. If you are referring to fiber optic sensors like those used in industrial temperature monitoring (e.g., DTSX systems), these are not part of the Galaxy S23. Fiber optic sensors in industrial applications detect temperature changes along optical fibers over long distances, which is unrelated to smartphone sensor technology . In summary, the S23's internal sensors are behind the display or integrated into the camera modules, and there is no fiber optic sensor in the device. For repair or technical reference, guides and teardowns show the exact placement of the proximity, light, and camera sensors on the display and camera PCBs .