Media type: E-Article Title: Phase-locked two-branch erbium-doped fiber laser system for long-term precision measurements of optical frequencies Contributor: Adler, Florian; Moutzouris, Konstantinos; Leitenstorfer, Alfred; Schnatz, Harald; Lipphardt, Burghard; Grosche, Gesine; Tauser, Florian imprint: Optica Publishing Group, 2004 Published in: Optics Express Language: English DOI: 10.1364/opex.12.005872 ISSN: 1094-4087 Keywords: Atomic and Molecular Physics, and Optics Origination: Footnote: Access State: Open Access