Abstract
We investigated 2k-grating-assisted self-pumped phase conjugation in photorefractive Ce:BaTiO3 crystals. The phase-conjugation process involves a combination of four-wave mixing and stimulated photorefractive backscattering. An approximation involving separate interaction regions is used to theoretically calculate the reflectivity of phase conjugation as a function of the coupling strength of four-wave mixing and stimulated photorefractive backscattering. In our experiments, grating-erasure techniques are employed at the interaction regions to investigate the dependence of phase-conjugate reflectivity on the coupling strength of four-wave mixing and stimulated photorefractive backscattering. The experimental results are in good agreement with the theoretical prediction.
Original language | English |
---|---|
Pages (from-to) | 1772-1779 |
Number of pages | 8 |
Journal | Journal of the Optical Society of America B: Optical Physics |
Volume | 13 |
Issue number | 8 |
DOIs | |
State | Published - 1 Jan 1996 |
Keywords
- Four wave mixing
- Self-pumped phase conjugate
- Stimulated photorefractive backscattering