Title :
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
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;
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
