This study presents active coherent beam combining(CBC)of a pulsed laser based on sampling the intrapulse evaluation function.By precisely controlling the trigger sequence of an analog-to-digital converter,the fixed t...This study presents active coherent beam combining(CBC)of a pulsed laser based on sampling the intrapulse evaluation function.By precisely controlling the trigger sequence of an analog-to-digital converter,the fixed time point of the pulse light is sampled as an evaluation function for CBC.The active CBC of two fiber amplifiers with a 500 ns pulse width and a 10 k Hz repetition rate is experimentally demonstrated by applying a hill-climbing algorithm.The residual phase error is approximately λ/27.A coherent Doppler wind lidar(CDWL)based on CBC light source is verified.The experimental results verify the feasibility of using the pulsed CBC to improve the pulse energy of a CDWL without degrading performance.展开更多
基金supported by the Foundation of Lidar and Device Laboratory,Sichuan Province,Chinathe Basic Military Research Institutes Steadily Support Special Projects。
文摘This study presents active coherent beam combining(CBC)of a pulsed laser based on sampling the intrapulse evaluation function.By precisely controlling the trigger sequence of an analog-to-digital converter,the fixed time point of the pulse light is sampled as an evaluation function for CBC.The active CBC of two fiber amplifiers with a 500 ns pulse width and a 10 k Hz repetition rate is experimentally demonstrated by applying a hill-climbing algorithm.The residual phase error is approximately λ/27.A coherent Doppler wind lidar(CDWL)based on CBC light source is verified.The experimental results verify the feasibility of using the pulsed CBC to improve the pulse energy of a CDWL without degrading performance.
