A NEW, WIDELY AND CONTINUOUSLY TUNABLE, HIGH-POWER PULSED LASER SOURCE

A pulsed laser source has been developed, which is continuously tunable from 4820 Å to 5790 Å, with power in the kilowatt range, and spectral width ≈14 cm−1. The technique used frequency addition in KDP. One frequency was that of a Nd-glass laser, while the other frequency was selected by phase matching, from the continuum produced by self-focusing and small-scale trapping of the laser beam in CS2. Methods are outlined of extending the wavelength range to ≈50% of the 0.25 μ to 1.0 μ spectrum available with KDP and KD*P.