Noise/ Oscillation issue in an op amp circuit
Treat the problem at the source, not after the fact.

The problem is that the opamp is going unstable.  That should not really be too surprising with C1 directly on its feedback input.  I don't know what you think R1 and C1 are supposed to do, but it won't be anything good.

Get rid of (short) R1, and put C1 on the other side of L1.  Also make sure that the opamp is guaranteed to be unity-gain stable.

If loosing R1 and moving C1 don't do it, come back and we can get into more complicated ways to deal with the instability.