Alignment of the SHG

I did the alignment SHG cavity for some days. For now, the first picture in the attachment shows the spectrum from the PD. At the beginning, the mode I got are all Laguerre modes. So I moved the position of the cavity to get better waist position matching. After that, I removed the mirror, let the transmitted beam from the cavity go directly to the CCD, in the second picture shows the situation of the optical bench now. Then from the screen that connected to the screen, I got the mode visually. Since the height of the camera mount is too high, so I bend the holder for 90 degree, so from the third picture although it seems like the misalignment is in the vertical direction, actually it is in the horizontal direction. The third picture only shows one of the mode I saw, but the others are all like this, and there are also some others too weak to see.During the adjustment I did on Friday, with adjusting the two mirror before the cavity in horizontal direction, did not make the situation better. I'll keep trying.