NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Mode Expansion and Bragg Filtering Enable a High-Fidelity Fiber-Based Photon-Pair Source

Published

Author(s)

Alexander E. Ling, Jun Chen, Jingyun Fan, Alan L. Migdall

Abstract

We report the development of a fiber-based single spatial mode source of photon-pairs where the efficiency of extracting photon-pairs is 15x better than a previous implementation [16]. This critical improvement in efficiency enabled a spectrally bright and pure photon-pair source having a small second-order correlation function (0.03) and a raw spectral brightness of 44,700 pairs /(s nm mW). The source can be configured to generate entangled photon-pairs, characterized via optimal and minimal quantum state tomography, to have a fidelity of 97% and tangle of 92%.
Citation
Optics Express
Volume
17
Pub Type
Journals

Download Paper

Local Download

Keywords

Photon-Pair Source, Photonic Crystal Fiber, Polarization-Entanglement
Quantum information science

Citation

Ling, A. , Chen, J. , Fan, J. and Migdall, A. (2009), Mode Expansion and Bragg Filtering Enable a High-Fidelity Fiber-Based Photon-Pair Source, Optics Express, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903010 (Accessed October 10, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created November 9, 2009, Updated February 19, 2017
Was this page helpful?