How to play with the spectral sensitivity of interferometers using slow light concepts and how to do it practically
We describe some interesting features that arise when slow and fast light structures are introduced in interferometers. With different configurations, one can obtain a spectral sensitivity enhancement of the interferometer or an enhanced robustness to laser frequency drifts. Furthermore, we describe simple practical ways to implement slow and fast light media in practical interferometers. We believe that these ideas may have interesting implications in optical sensing.