Fundamental mode, single-frequency laser amplifier for gravitational wave detectors Frede, Maik ; Schulz, Bastian ; Wilhelm, Ralf ; Kwee, Patrick ; Seifert, Frank ; Willke, Benno ; Kracht, Dietmar Abstract Publication: Optics Express Pub Date: January 2007 DOI: 10.1364/OE.15.000459 Bibcode: 2007OExpr..15..459F