Over 2 mW of continuous-wave tunable 194-nm light is produced by sum-frequency mixing approximately 500 mW of 792-nm and 500 mW of 257-nm radiation in beta-barium borate (BBO). The powers in both fundamental beams are enhanced in separate ring cavities whose optical paths overlap in the Brewster-cut BBO crystal. Due to the higher circulating fundamental powers, the sum-frequency-generated power is nearly 2 orders of magnitude greater than previously reported values.
© 1997 Optical Society of America
Original Manuscript: September 12, 1996
Revised Manuscript: February 27, 1997
Published: June 20, 1997
Dana J. Berkeland, Flavio C. Cruz, and James C. Bergquist, "Sum-frequency generation of continuous-wave light at 194 nm," Appl. Opt. 36, 4159-4162 (1997)