Gravitational Wave Detection Project Help

I am doing a project on Gravitational Wave Detection Techniques, and I am already done with preparing the apparatus for that , its kid of Michelson Interferometer with some minor additions , the wave detection is based on the same basic principle of fringe shift due to path difference in two rays of light , due to disturbances in local spacetime fabric .

But the problem is that at such a small level , its difficult to practically show any determinable fringe shifts , because of highly low intensity GW's at ground level , please advice me , how should I go about , taking my apparatus more closer to the real thing , is there a possibility that somehow I can modify the weak signals ??... should I create a model of planets , and show how the fringe shift is related to the intensity of cosmic GW passed???....Can someone pls guide me , or give me a link to a paper/site that studies the fringe shift with the intensity of wave passed in mathematical form ... etc.

Any sort of additions to my project if possible ..pls advice

thnx