首页>
外国专利>
Free space optical transmission system having luminous transmitter two different frequencies transmitting one intensity modulated with detector frequency difference signals transmitted formed.
Free space optical transmission system having luminous transmitter two different frequencies transmitting one intensity modulated with detector frequency difference signals transmitted formed.
The free space optical transmission system has a digital information signal (S(t)) with luminous transmissions (SRC) and an opto electrical detector (DET) detecting a frequency. The transmitter transmits two luminous waves (W0,W1) at two optical frequencies, one of which is modulated in intensity. The detection frequency is the difference between the two signals transmitted.
展开▼