Broadening the high sensitivity range of squeezing-assisted interferometers by means of two-channel detection

Shukla G, Salykina D, Frascella G, Mishra DK, Chekhova M, Khalili FY (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Optics Express Optical Society of America

Book Volume: 29

Pages Range: 95-104

Journal Issue: 1

DOI: 10.1364/OE.413391

Abstract

For a squeezing-enhanced linear (so-called SU(2)) interferometer, we theoretically investigate the possibility to broaden the phase range of sub-shot-noise sensitivity. We show that this goal can be achieved by implementing detection in both output ports, with the optimal combination of the detectors outputs. With this modification, the interferometer has the phase sensitivity independent of the interferometer operation point and, similar to the standard dark port regime, is not affected by the laser technical (excess) noise. Provided that each detector is preceded by a phase-sensitive amplifier, this sensitivity could be also tolerant to the detection loss.

Authors with CRIS profile

Maria Chekhova Professur für Optik

Involved external institutions

Banaras Hindu University

India (IN) Russian Quantum Center

Russian Federation (RU) Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light

Germany (DE) Lomonosov Moscow State University / Московский государственный университет имени М.В.Ломоносова

Russian Federation (RU)

How to cite

APA:

Shukla, G., Salykina, D., Frascella, G., Mishra, D.K., Chekhova, M., & Khalili, F.Y. (2021). Broadening the high sensitivity range of squeezing-assisted interferometers by means of two-channel detection. Optics Express, 29(1), 95-104. https://dx.doi.org/10.1364/OE.413391

MLA:

Shukla, Gaurav, et al. "Broadening the high sensitivity range of squeezing-assisted interferometers by means of two-channel detection." Optics Express 29.1 (2021): 95-104.

BibTeX: Download