Today I dismantled a few 400W lasers from Germany to see how they are synthesized...
1. In the above picture, their method one uses a special coated glass, with one side transmitting at 45 degrees and the other side reflecting for laser synthesis.
2. In the following figure, I analyze their method two using two lasers to control the phase by lighting up two lasers according to the sequence. (Calculate and test at the beginning, and the finished product will light up directly according to the sequence). The battery should maintain certain frequency and phase difference parameters.
3. The Germans are smart
