I think the more interesting question is "how does this scale with more laser power?"
Even if the lasers are 1% efficient does it matter if 100 GJ of electrical power results in 100 TJ of fusion heat? I'm not saying this is at all how it scales, but it is the logic behind pursuing an ICF power plant. The fuel gets ignited and heats itself.
Also, for fun, 100 TJ is 24 kT TNT equivalent: slightly more than the bombs dropped on Hiroshima and Nagasaki. Trying to capture this energy released instantaneously would be a fun engineering challenge.
Even if the lasers are 1% efficient does it matter if 100 GJ of electrical power results in 100 TJ of fusion heat? I'm not saying this is at all how it scales, but it is the logic behind pursuing an ICF power plant. The fuel gets ignited and heats itself.
Also, for fun, 100 TJ is 24 kT TNT equivalent: slightly more than the bombs dropped on Hiroshima and Nagasaki. Trying to capture this energy released instantaneously would be a fun engineering challenge.