We demonstrate the use of intracavity frequency doubling in a self-mode-locked Ti:sapphire laser to generate We as short as 14 fs. We use a 100-μm-thick lithium triborate (LiB3O5) crystal in a standard Ti:sapphire pulses for the frequency doubling. The average blue output power is 30 mW in each of two beams directly laser cavity the laser and 11 mW after compression. The repetition rate is 91 MHz, and the spectral bandwidth is from a near-transform-limited 19.2 nm centered at 416 nm. To our knowledge, these results represent the shortest pulse duration yet demonstrated in the blue region of the spectrum.
© 1994 Optical Society of America
Original Manuscript: September 20, 1993
Published: March 15, 1994
S. Backus, M. T. Asaki, C. Shi, H. C. Kapteyn, and M. M. Murnane, "Intracavity frequency doubling in a Ti:sapphire laser: generation of 14-fs pulses at 416 nm," Opt. Lett. 19, 399-401 (1994)