> Directed Energy Weapons. China likely is pursuing laser weapons to disrupt, degrade, or damage sat- ellites and their sensors and possibly already has a limited capability to employ laser systems against satellite sensors. China likely will field a ground-based laser weapon that can counter low-orbit space-based sensors by 2020, and by the mid-to-late 2020s, it may field higher power systems that extend the threat to the structures of non-optical satellites.
https://aerospace.csis.org/wp-content/uploads/2019/03/201901...
Here is a more academic article discussing the risk from ground based Satellite Laser Ranging systems to optical sensors, specifically when they are imaging the area near the SLR. I'm guessing the power required to damage structure vs optical sensors are probably orders of magnitude different.
> This density is 100 times the damage threshold of 106 J/m2, and will damage the pixel unless the laser light is filtered. In this case both the pixels and the filter may be damaged.
(There is a caveat to the above statement based on timing probability being very low)