Related Experiment Video
Updated: Jul 10, 2026
Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Highly efficient single-pass frequency doubling of a continuous-wave distributed feedback laser diode using a PPLN
Andreas Jechow1, Marco Schedel, Sandra Stry
1University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany. ajechow@uni-potsdam.de
Abstract:
A continuous-wave distributed feedback diode laser emitting at 976 nm was frequency doubled by the use of a periodically poled lithium niobate waveguide crystal with a channel size of 3 microm x 5 microm and an interaction length of 10 mm. A laser to waveguide coupling efficiency of 75% could be achieved resulting in 304 mW of incident infrared light inside the waveguide. Blue laser light emission of 159 mW at 488 nm has been generated, which equals to a conversion efficiency of 52%. The resulting wall plug efficiency was 7.4%.
