In this paper, we investigate the angular displacement measurements using the homodyne detection method in a modified-SU(2) Mach-Zehnder interferometer (MZI). Three parametric amplifiers (PAs) are used. PA’s role is to increase the number of photons and to reduce the shot-noise. We also consider quantum Fisher information (QFI) and derive expressions for single- and twoparameter cases and corresponding quantum Cramer-Rao bounds (QCRB). We find that angular displacement sensitivity exceeds the standard quantum limit (SQL) or shot-noise limit (SNL) and approaches single- and two-parameter QCRB. Finally, we investigate the impact of photon losses on the sensitivity of interferometer
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.