MULTIMODE SQUEEZED LIGHT INTERFEROMETER.

Summary form only given, as follows. Squeezed light can in principle reduce the variance of phase measured by an interferometer. A simple interferometer design is described based on multimode squeezed states at frequencies omega plus or minus DELTA and omega plus or minus 3 DELTA at one input to the interferometer. The other interferometer input is a pair of high-amplitude coherent states at frequencies omega plus or minus DELTA . A balanced homodyne detector is used to measure the phse difference in the arms of the interferometer by monitoring the photocurrent at frequency 2 DELTA . A wideband analysis shows that the measured phase variance for this multimode interferometer can be reduced well below the standard quantum limit. Results to date of an experiment in progress to verify this analysis are reported. They indicate that squeezing factors as large as an order of magnitude can be achieved wih present technology.