Efficient cascaded wavelength conversion based on Stark-chirped rapid adiabatic passage

Abstract

We demonstrate a highly efficient process of cascaded wavelength conversion among three states that is based on the Stark-chirped rapid adiabatic passage technique, and enables the achievement of nearly complete wavelength conversion in the mid-infrared laser generation process. By analyzing the relevant parameters in the model, we identify various factors that affect the efficiency of the conversion process. Compared with traditional cascaded wavelength conversion based on the technique of stimulated Raman adiabatic passage, the new conversion process not only maintains a high efficiency but also keeps the intermediate frequency strength low along the interacting length and achieves better stability when the relevant parameters change.

Generation of terahertz waves based on nonlinear frequency conversion with double rapid adiabatic passage technique

“…Nonlinear optical frequency conversion can achieve broadband and efficient conversion of ultraviolet to mid-infrared lasers through three-wave mixing 3 [9][10][11] and cascaded 4 conversion processes, which makes it an important means to obtain new band laser sources. With the stimulated Raman adiabatic passage (STIRAP) technique and the Stark-chirped rapid adiabatic passage 5 technique in atomic systems are analogized to the field of nonlinear optical cascaded frequency conversion, the nonlinear optical cascaded frequency conversion model based on adiabatic technique has been proposed, which provides some new ideas for nonlinear optical cascaded frequency conversion processes [12][13][14][15][16][17][18][19][20]. Chen et al investigated the optical simulation of double rapid adiabatic passage (DRAP) technique in three transiently coupling waveguides with the propagation constant longitudinally varying detunings.…”

Efficient cascaded wavelength conversion under two-peak modulated Stark-chirped rapid adiabatic passage via grating structures

“…Compared with STIRAP, it does not need two-photon resonance, and can be applied to multiphoton transmission with minimum intermediate state [7,12]. Inspired by the application of STIRAP in QPM wavelength conversion [13], our group proposed a cascaded TWM process model, in which the conversion wavelength can cover the transparent range of nonlinear media [14,15]. It also shows robustness to wavelength conversion conditions.…”