I would not expect it to burn through a bunker buster bomb but it might keep the aircraft that could deliver it far away.
You need Megawatt class laser for this, at least the same level as what needed to handle Ballistic missile. Aircraft is hard target with hardness of about 25 kj/sqcm comparable to solid fueled ballistic missile. based on US Studies on ABM Lasers.
This is a result of my calculation on a laser weapon, assume solid state with 3 m diameter beam director and 3 seconds engagement time. This is the one that can engage aircraft target at M 0.8. Well its gonna be expensive for sure. The cost figure is comparable to the cost of 2x full system of S-300PT/PS Battery in (about 152 M USD)