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- Title
Femtosecond cascaded third-harmonic generation with simultaneous walk-off effect by multigrating periodically poled MgO-doped lithium niobate.
- Authors
Wenchao You; Shuanggen Zhang; Xiurong Ma; Qingyue Wang
- Abstract
The explicit formula solutions of cascaded third-harmonic generation (THG) process were derived based on coupled-wave equations. Conversion efficiency (CE) with the simultaneous temporal walk-off effect is theoretically investigated by use of split-step Fourier transform method, and the obtained results show that the CE of cascaded THG can be adjusted by phase mismatch, i.e., ΔkSHG and ΔkTHG. The walk-off effect can be eliminated to some extent by optimizing pump intensity. Using the multiple-grating periodically poled MgO-doped lithium niobate (MgO: PPLN), pumped by 50 fs optical parametric amplifier pulses, the CE of the cascaded THG was achieved (10.8%), and a detailed analysis was presented.
- Subjects
THIRD harmonic generation; LITHIUM niobate; LASER frequency stability; NONLINEAR optics; OPTICAL amplifiers
- Publication
Optical Engineering, 2014, Vol 53, Issue 5, p1
- ISSN
0091-3286
- Publication type
Article
- DOI
10.1117/1.OE.53.5.056119