Open AccessTwo-photon interference with a semiconductor integrated source at room temperature
Author(s) -
Xavier Caillet,
Adeline Orieux,
A. Lemaı̂tre,
Pascal Filloux,
Iván Favero,
Giuseppe Leo,
S. Ducci
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.009967
Subject(s) - spontaneous parametric down conversion , photon , laser linewidth , optics , physics , semiconductor , interference (communication) , optoelectronics , visibility , quantum optics , laser , quantum , quantum entanglement , telecommunications , channel (broadcasting) , quantum mechanics , computer science
We experimentally demonstrate an integrated semiconductor ridge microcavity source of counterpropagating twin photons at room temperature in the telecom range. Based on type II parametric down conversion with a counterpropagating phase-matching, pump photons generate photon pairs with an efficiency of about 10(-11) and a spectral linewidth of 0.3 nm for a 1 mm long sample. The indistiguishability of the photons of the pair is measured via a Hong-Ou-Mandel two-photon interference experiment showing a visibility of 85 %. This work opens a route towards new guided-wave semiconductor quantum devices.