All-solid-state neodymium-based single-frequency master-oscillator fiber power-amplifier system emitting 5.5 W of radiation at 1064 nm.

We demonstrate a master-oscillator fiber power-amplifier system consisting of a diode-pumped monolithic nonplanar ring oscillator as the master oscillator and a Nd:glass double-clad fiber as the power amplifier. The system emits up to 5.5 W of single-frequency radiation at a wavelength of 1064 nm with an M(2) value of ~1.1 . The optical emission spectrum is investigated with respect to the background of residual amplified spontaneous emission. Spectrally resolved amplitude-noise behavior is examined. Further power-scaling possibilities are discussed.

Diode-pumped, continuous-wave, single-mode, tunable Cr(3+):LiSrAlF(6) ring laser.

We describe an all-solid-state, tunable, single-frequency, continuous-wave Cr(3+):LiSrAlF(6) ring laser. When pumped with 360 mW of power from a single laser diode the laser has tuning range from 814 to 892 nm and a free-running frequency stability relative to a reference cavity of 60 kHz rms. Further stabilization promises to be possible by use of standard servo electronics. We demonstrate the use of the laser by performing Dopplerfree saturation spectroscopy of the cesium D2 line.