band pass filter on solar cell to detect laser
You could just do two passive RC's in series.  







simulate this circuit &ndash; Schematic created using CircuitLab

I've made it a bit wide and sloppy... you can play with the capacitor values.  The first part is a high pass with a 1 ms time constant ~160 Hz, the second is a low pass with a 10 us time constant. ~16kHz.  You want to keep the second R big so it doesn't load the first stage.