No Cover Image

Journal article 397 views 60 downloads

Integrated quantum photonic sensor based on Hong-Ou-Mandel interference / Sahar Basiri-Esfahani; Casey R. Myers; Ardalan Armin; Joshua Combes; Gerard J. Milburn; Sahar Basiri Esfahani

Optics Express, Volume: 23, Issue: 12, Start page: 16008

Swansea University Authors: Ardalan, Armin, Sahar, Basiri Esfahani

Check full text

DOI (Published version): 10.1364/OE.23.016008

Abstract

Photonic-crystal-based integrated optical systems have been used for a broad range of sensing applications with great success. This has been motivated by several advantages such as high sensitivity, miniaturization, remote sensing, selectivity and stability. Many photonic crystal sensors have been p...

Full description

Published in: Optics Express
ISSN: 1094-4087
Published: 2015
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa39964
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: Photonic-crystal-based integrated optical systems have been used for a broad range of sensing applications with great success. This has been motivated by several advantages such as high sensitivity, miniaturization, remote sensing, selectivity and stability. Many photonic crystal sensors have been proposed with various fabrication designs that result in improved optical properties. In parallel, integrated optical systems are being pursued as a platform for photonic quantum information processing using linear optics and Fock states. Here we propose a novel integrated Fock state optical sensor architecture that can be used for force, refractive index and possibly local temperature detection. In this scheme, two coupled cavities behave as an “effective beam splitter”. The sensor works based on fourth order interference (the Hong-Ou-Mandel effect) and requires a sequence of single photon pulses and consequently has low pulse power. Changes in the parameter to be measured induce variations in the effective beam splitter reflectivity and result in changes to the visibility of interference. We demonstrate this generic scheme in coupled L3 photonic crystal cavities as an example and find that this system, which only relies on photon coincidence detection and does not need any spectral resolution, can estimate forces as small as 10^−7 Newtons and can measure one part per million change in refractive index using a very low input power of 10−10W. Thus linear optical quantum photonic architectures can achieve comparable sensor performance to semiclassical devices.
College: College of Science
Issue: 12
Start Page: 16008