Abstract
Frequency doubling has been achieved in femtosecond-laserinscribed single-mode waveguides written in two periodically-poled potassium titanyl phosphate crystals. A conversion efficiency of 0.22 %W-1 was obtained for first-order quasi-phase matching at 980 nm and an efficiency of 0.02 %W-1 for third-order quasi-phase matching at 800 nm. © 2007 Optical Society of America.
Original language | English |
---|---|
Pages (from-to) | 17146-17150 |
Number of pages | 5 |
Journal | Optics Express |
Volume | 15 |
Issue number | 25 |
Publication status | Published - 12 Dec 2007 |