Device and method for free space coherent optical communication by means of automatic compensation for phase noise in atmosphere using femtosecond laser optical comb펨토초 레이저의 광빗을 이용한 대기 중의 위상 노이즈의 자동 보상을 통한 자유공간 가간섭 광통신 장치 및 방법
Provided are a device and method for free space coherent optical communications by means of an automatic compensation for phase noise in atmosphere using a femtosecond laser optical comb, and more particularly, a device and method for free space coherent optical communications by means of an automatic compensation for phase noise in atmosphere using a femtosecond laser optical comb, in which a phase shift value due to atmospheric turbulence is obtained from reflected light of transmission light generated from a femtosecond laser optical comb and the transmission light is pre-distorted on the basis of the phase shift value, thereby pre-compensating, in a transmission end, for phase noise due to atmospheric turbulenc