Double phase conjugate mirror and double colour pumped oscillator using band-edge photorefractivity in InP:Fe

Abstract We have observed the formation of a double phase-conjugate mirror (DPCM) and a double colour pumped oscillator (DCPO) at wavelengths near the band-edge of InP:Fe, with an external dc field of 10 kV/cm. The DCPO conversion efficiencies are respectively 63% and 26% for the couple of wavelengths 985 and 1.047 nm. These results are compared with the prediction of a calculation which takes into account the space-charge field non-linearities.