Design and operating characteristics are reported for high prf copper laser-pumped rhodamine 590 dye-laser oscillators using simple Littrow-mounted or grazing-incidence grating cavities incorporating double-prism beam expanders. Conversion efficiencies from the 2-W, λ510.6-nm pump beam at the λ575-nm peak of the dye tuning band are 4–5% for linewidths in the subgigahertz range down to 650 MHz at a pulse repetition frequency of 8 kHz. Background amplified spontaneous emission intensity is low, typically 1% of tunable laser intensity for the Littrow-grating cavity and only 0.1% for the grazing-incidence grating cavity.
© 1984 Optical Society of America
Original Manuscript: November 14, 1983
Published: May 1, 1984
F. J. Duarte and James A. Piper, "Narrow linewidth, high prf copper laser-pumped dye-laser oscillators," Appl. Opt. 23, 1391-1394 (1984)