Using a grating structure for phase compensation in achieving an efficient round-trip optical parametric process in periodically poled lithium niobate with an incomplete quasi-phase-matching period
Journal
Optics Letters
Journal Volume
24
Journal Issue
8
Pages
540-542
Date Issued
1999
Author(s)
Hsu, C.-W.
Abstract
The idea of using a grating structure to solve the problem of the incomplete quasi-phase matching (QPM) period was proposed. The simulation results of using phase compensation in achieving an efficient round-trip optical parametric process in periodically poled LiNbO3 (PPLN) are presented. Although chemical wet etching is not a good technique for fabricating corrugation gratings on periodically poled nonlinear crystals because the etching rates of the opposite domains are different, surface gratings on LiNbO3 have been successfully fabricated, with laser ablation.
Other Subjects
Computer simulation; Crystal structure; Diffraction gratings; Laser ablation; Lithium niobate; Optical parametric oscillators; Phase shift; Periodically poled lithium niobate; Phase compensation; Quasi-phase matching (QPM); Optical materials
Type
journal article