Optical detection system, vehicle communication system having the same and operating method thereof

An operating method of an optical detection system, comprising:

• emitting, by a first optical transmitter module, detection light, wherein the first optical transmitter module has a first light transmitter and a first metasurface located above the first light transmitter, and the first light transmitter comprises a photonic crystal surface emitting laser;
• receiving, by a first light receive module, signal light formed by a reflection of the detection light;
• receiving, by a second optical receiver module, first communication light;
• combining information of the signal light and information of the first communication light;
• and
• emitting, by a second optical transmitter module, second communication light, wherein the second communication light has the information of the signal light and the information of the first communication light, the second optical transmitter module has a second light transmitter and a second metasurface located above the second light transmitter, and the second light transmitter comprises a photonic crystal surface emitting laser.

A vehicle communication system, comprising:

• a vehicle;
• and
• an optical detection system located in the vehicle, comprising:
• a first optical transmitter module, configured to emit detection light, and having a first light transmitter and a first metasurface located above the first light transmitter, wherein the first light transmitter comprises a photonic crystal surface emitting laser, and the first metasurface is configured to increase a scattering angle of light from the first light transmitter through the first metasurface to form the detection light;
• a first optical receiver module, configured to receive first signal light formed by a reflection of the detection light;
• a second optical receiver module, configured to receive first communication light;
• and
• a second optical transmitter module, configured to emit second communication light, and having a second light transmitter and a second metasurface located above the second light transmitter, wherein the second communication light has information of the first signal light and information of the first communication light, the second light transmitter comprises a photonic crystal surface emitting laser, and the second metasurface is configured to determine a spatial distribution and polarization pattern of the second communication light.