title: Nd:YAG ring laser with 213 W linearly polarized fundamental mode output power.
abstract: We present a high power fundamental mode ring oscillator with four longitudinally diode-pumped laser rods and effective birefringence compensation as a laser source for the next generation of gravitational wave detection. With this setup a linearly polarized output power of 213 W in a nearly diffraction limited beam with an M2 value of 1.15 was demonstrated.
authors.forename: Maik
authors.initials: M
authors.lastname: Frede
authors.forename: Ralf
authors.initials: R
authors.lastname: Wilhelm
authors.forename: Dietmar
authors.initials: D
authors.lastname: Kracht
authors.forename: Carsten
authors.initials: C
authors.lastname: Fallnich