## Phase estimation by photon counting measurements in the output of a linear Mach–Zehnder interferometer |

JOSA B, Vol. 29, Issue 10, pp. 2754-2764 (2012)

http://dx.doi.org/10.1364/JOSAB.29.002754

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### Abstract

Photon counting measurements are analyzed for obtaining a classical phase parameter in a linear Mach–Zehnder interferometer (MZI) by the use of phase estimation theories. The detailed analysis is made for four cases: (a) coherent states inserted into the interferometer, (b) Fock number state inserted in one input port of the interferometer and the vacuum into the other input port, (c) coherent state inserted into one input port of the interferometer and squeezed-vacuum state into the other input port, and (d) exchanging the first beam splitter of an MZI by a nonlinear system that inserts a NOON (representing a superposition of

© 2012 Optical Society of America

**OCIS Codes**

(040.5570) Detectors : Quantum detectors

(350.5030) Other areas of optics : Phase

(350.5730) Other areas of optics : Resolution

**ToC Category:**

Quantum Optics

**History**

Original Manuscript: May 22, 2012

Revised Manuscript: July 31, 2012

Manuscript Accepted: August 13, 2012

Published: September 17, 2012

**Citation**

Yacob Ben-Aryeh, "Phase estimation by photon counting measurements in the output of a linear Mach–Zehnder interferometer," J. Opt. Soc. Am. B **29**, 2754-2764 (2012)

http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-10-2754

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