Edge-enhanced optical parametric generation in periodically poled LiNbO3
Research output: Contribution to journal › Article › Scientific › peer-review
|Number of pages||9|
|Publication status||Published - 6 Jul 2020|
|Publication type||A1 Journal article-refereed|
We demonstrate enhanced optical parametric gains occurring at the edge of periodically poled LiNbO3 (PPLN) regions. Experiments performed in MgO-doped PPLN samples, pumped at 532 nm with parametric signal outputs around 800 nm and 1550 nm, exhibit good agreement with numerical simulations of the nonlinear wave dynamics in the system, based on the assumption of an average refractive index increase ∆n = 5.3×10−5 in the PPLN region. Excitation in proximity to the PPLN edge with a pump power of 8.1 mW results in a 3.6-fold output power increase with respect to parametric generation inside the PPLN area.