We all know that infrared laser diodes are widely used in daily life, so do you know what are the main uses of 850nm laser diodes? Let's take a look at it from the perspective of Xiaobian.

Optical communication (short-distance, multimode fiber)

850nm is a well-deserved hot spot in optical communication, especially in data centers, server rooms, switches, internal optical modules of routers, and multimode optical fiber wiring.

3D camera, ToF depth perception

Many mobile phones use 850nm for 3D face recognition, sweeper and robot obstacle avoidance.

Why choose 850nm? Safe for human eyes, high camera sensitivity and relatively controllable ambient light interference.

IR night vision fill light (widely used by security cameras)

Industrial sensing and detection (many)

850nm is particularly popular in industry because silicon photodetectors are very sensitive to it.

Commonly used in: position detection, opposite photoelectric switch, encoder.

Medical and life science instruments

Although it is not the mainstream medical band, 850nm will also be used for: blood oxygen, pulse detection (some models), NIR imaging, tissue spectral analysis, and biological experiment excitation light source.

The above is the purpose of 850nm laser diode. If you are still unclear, please feel free to contact us.