Intracavity etalons have been used to obtain single axial mode oscillation of a beta barium borate optical parametric oscillator pumped at 308 nm by a XeCl excimer laser. Two high finesse etalons were sufficient to select a single axial mode of the resonant signal wave over a tuning range 400-560 nm with the increase in oscillation threshold due to etalon insertion being kept below 1.5 times. Addition of a grating enabled single axial mode oscillation to be maintained out to degeneracy (616 nm).
机构:
STANFORD UNIV, DEPT APPL PHYS, EDWARD L GINSTON LAB PHYS, STANFORD, CA 94305 USASTANFORD UNIV, DEPT APPL PHYS, EDWARD L GINSTON LAB PHYS, STANFORD, CA 94305 USA
机构:
STANFORD UNIV, DEPT APPL PHYS, EDWARD L GINSTON LAB PHYS, STANFORD, CA 94305 USASTANFORD UNIV, DEPT APPL PHYS, EDWARD L GINSTON LAB PHYS, STANFORD, CA 94305 USA