Abstract

The sensitivity of interferometric gravitational wave detectors (GWD) can be greatly enhanced by using a technique called signal-recycling [1]. This technique, in principle, uses the properties of an optical cavity The aim is to enhance sidebands impressed on the carrier frequency (the laser) due to the interaction of the laserfield with the gravitational wave Our goal is to realize a high-Q cavity with nevertheless broadband response (white-light cavity) in order to improve the bandwidth of future GWD while maintaining the gain in sensitivity due to the signal-recycling technique, or - what is aequivalent - to enhance the gain in sensitivity without affecting the bandwitdh of the detector.

© 1996 IEEE