FSO is also secure: the only way to intercept the signal is physically to intercept the beam.
FSO is also secure: the only way to intercept the signal is physically to intercept the beam.
无线光通信也很安全：阻断信号的唯一办法就是物理阻断光束。
FSO is also secure: the only way to intercept the signal is physically to intercept the beam.
无线光通信也很安全：阻断信号的唯一办法就是物理阻断光束。