Highly efficient blue-light generation from a compact, diode-pumped femtosecond laser by use of a periodically poled KTP waveguide crystal |
| |
Authors: | Agate B Rafailov E U Sibbett W Saltiel S M Battle P Fry T Noonan E |
| |
Institution: | School of Physics and Astronomy, University of St. Andrews, St. Andrews, KY16 9SS, Scotland. mba@st-andrews.ac.uk |
| |
Abstract: | We present a simplified, potentially portable, and highly efficient blue-light source from a periodically poled KTP waveguide crystal with a compact femtosecond Cr:LiSAF laser. This light source generates 5.6 mW of blue average output power at 424 nm with 27 mW of incident fundamental in a single-pass extracavity arrangement at room temperature. The overall system efficiency of electrical power to blue light is 0.5%, and the internal second-harmonic generation conversion efficiency is as high as 37%. The slope efficiency of 5.5% pJ(-1) at low pulse energies is, to our knowledge, the highest slope efficiency yet reported for frequency conversion into the blue spectral region. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|