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Mutual first-order coherence of phase-locked lasers
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-2082-9583
2004 (English)In: Journal of Optics B-Quantum and Semiclassical Optics, ISSN 1464-4266, E-ISSN 1741-3575, Vol. 6, no 1, 46-53 p.Article in journal (Refereed) Published
Abstract [en]

We argue that (first-order) coherence is a relative, and not an absolute, property. It is shown how feedforward or feedback can be employed to make two (or more) lasers relatively coherent. We also show that after the relative coherence is established, the two lasers will,stay relatively coherent for some time even if the feedforward or feedback loop has been turned off, enabling, e.g., demonstration of unconditional quantum teleportation using lasers.

Place, publisher, year, edition, pages
2004. Vol. 6, no 1, 46-53 p.
Keyword [en]
quantum optics, photon statistics, coherence theory, quantum noise, lasers, general laser theory, quantum teleportation
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-23125DOI: 10.1088/1464-4266/6/1/008ISI: 000188587200010Scopus ID: 2-s2.0-0842289718OAI: oai:DiVA.org:kth-23125DiVA: diva2:341823
Note
QC 20100525 QC 20111102Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-11-02Bibliographically approved

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Björk, Gunnar

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