QND measurement of twin beams with phase-sensitive preamplification

Author

Kartner, Franz X. ; Haus, H.A.

Author_Institution

Inst. of Quantum Electron., Swiss Federal Inst. of Technol., Zurich, Switzerland

fYear

1996

fDate

7-7 June 1996

Firstpage

223

Lastpage

224

Abstract

Summary form only given. Interferometric measurements of a phase displacement in one arm of a Mach Zehnder interferometer can be performed below the shot noise level if squeezed light is injected into the unused "vacuum" port of the interferometer. The probe light is homodyne detected by a balanced detector with use of a local oscillator with the proper phase relative to the squeezed radiation.

Keywords

Mach-Zehnder interferometers; fluctuations; light interferometry; optical noise; optical squeezing; photon counting; shot noise; Mach Zehnder interferometer; QND measurement; interferometric measurements; local oscillator; phase displacement measurement; phase-sensitive preamplification; photodetectors; photon counting; proper phase; quantum nondemolition measurement; shot noise level; squeezed light injection; squeezed radiation; twin beams; unused vacuum port; Displacement measurement; Local oscillators; Noise level; Noise measurement; Optical interferometry; Performance evaluation; Phase detection; Phase measurement; Probes; Radiation detectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 1996. QELS '96., Summaries of Papers Presented at the

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-444-0

Type

conf

Filename

865805