Absolute sensitivity of phase measurement in an SU(1,1) type interferometer.

Abstract

Absolute sensitivity is measured for the phase measurement in an SU(1,1) type interferometer, and the results are compared to that of a Mach-Zehnder interferometer operated under the condition of the same intra-interferometer intensity. The interferometer is phase locked to a point with the largest quantum noise cancellation, and a simulated phase… (More)
DOI: 10.1364/OL.43.001051