One of the guys on the TML back in the day.I don't know where the 30g figure came from, I always thought it would require thousands of artificial g to 'focus' the laser in the machinery/optics of the laser, the alternative is the gravity is projected few thousand km away.
But I found a reference that provides context... https://www.einstein-online.info/en/spotlight/light_deflection/
Solar A = 247m/s² (21.178 gee)
Solar deflection @ surface is roughly 5e-3 Å (0.005Å)