Photorefractive effect in LiNbO3-based integrated-optical circuits at wavelengths of third telecom window
- First Online:
- Cite this article as:
- Kostritskii, S.M. Appl. Phys. B (2009) 95: 421. doi:10.1007/s00340-009-3501-4
- 99 Downloads
Original results on investigation of the photorefractive effect in straight channels and integrated-optical circuits such as a directional coupler, Y-splitter and Mach–Zehnder interferometer, exploiting titanium-indiffused and proton-exchanged LiNbO3 waveguides, are presented. It has been found that the photorefractive damage is non-negligible for IR radiation with wavelengths near 1.5 μm in all circuits studied. The new methods for accurate evaluation of small extents of photorefractive effect are proposed.