Demonstration of fast switching of photorefractive four-wave mixing via Pockels effect

✍ Scribed by Teruhito Mishima; Ping Xie; Kojiro Koyanagi; Imtiaz Ahmad Taj

• Book ID: 103872141
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 97 KB
• Volume: 225
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2003.08.013

✦ Synopsis

We demonstrate experimentally fast switching of the diffracted output from an orthogonally polarized pump (OPP) four-wave mixing (FWM) in a BaTiO 3 crystal. The switching mechanism is based on the phase mismatch in the FWM process induced by an applied electric field via Pockels effect, and, therefore, the switching speed is of the order of the Pockels effect. In our experiment, we obtain a switching time of the order of 10 ms, which is limited by the photodetector we used. The required voltage to switch off the diffracted output completely is about 225 V.