Multi-resonant optical parametric oscillator based on 2D-PPLT nonlinear photonic crystal

Lazoul, Mohamed; Boudrioua, Azzedine; Simohamed, Lotfy-Mokhtar; Peng, Lung‐Han

doi:10.1364/ol.40.001861

Cited by 15 publications

(9 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The existence of PBG enables the combination of nonlinear effects and PCs to generate many remarkable phenomena, such as PBG drift, [ 14 ] nonlinear induced self‐trapping, [ 15 ] second harmonic generation (SHG), [ 16 ] difference frequency, [ 17 ] optical bistability, [ 18 ] and optical parametric oscillators. [ 19 ] Among them, SHG has received extensive research attention since it can effectively extend the laser bandwidth and obtain the required light source frequency. In 1995, Trull [ 20 ] et al found that 1D NPCs structure with defects could enhance the excitation effect of SHG, and in 2004, Xu [ 21 ] et al found that PCs grating structures could simultaneously generate second and third harmonic and achieve phase matching.…”

Section: Introductionmentioning

confidence: 99%

Second Harmonic Generation in 1D Nonlinear Plasma Photonic Crystals

et al. 2023

View full text Add to dashboard Cite

In this paper, a 1D nonlinear plasma photonic crystal (NPPC) structure composed of polarized ferroelectric crystals and nonlinear plasma periodic alternation is proposed. The transfer matrix method is employed to analyze the second harmonic generation (SHG) problem of this structure. In the designed NPPCs, the fundamental wave (FW) operates in the gigahertz (GHz) band and the nonlinear plasma is controlled by an external high‐intensity control wave (CW). Numerical simulations are performed to investigate the effects of different incident angles and external CW intensities on the total conversion efficiency (T‐con) of the second harmonic wave (SHW). Additionally, the internal electric field distribution and incident light intensity within the nonlinear structure are analyzed. The importance of the relationship between the FW frequency and photonic band gap (PBG) in enhancing SHG is summarized. The results demonstrate that the optimal structure can be obtained by changing the structural parameters, such that the FW and SHW are tuned to the edge of the PBG. At this point, the electromagnetic field density is large, the group velocity is small, the local field is enhanced, and the nonlinear optical interaction is increased, resulting in a significant increase in the T‐con of the SHW.

show abstract

Section: Introductionmentioning

confidence: 99%

Second Harmonic Generation in 1D Nonlinear Plasma Photonic Crystals

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Here, we propose and experimentally demonstrate a Janus OPO based on quasi-phase-matching (QPM) configuration 43 – 47 for highly efficient output of highly pure, broadly tunable, and TC-controllable LG modes [Fig. 1(c)].…”

Section: Introductionmentioning

confidence: 99%

“…The fiber laser is another potential platform for broadband output of LG mode, but it suffers from low mode purity as well. 41,42 Here, we propose and experimentally demonstrate a Janus OPO based on quasi-phase-matching (QPM) configuration [43][44][45][46][47] for highly efficient output of highly pure, broadly tunable, and TC-controllable LG modes [Fig. 1(c)].…”

Section: Introductionmentioning

confidence: 99%

Generation of high-efficiency, high-purity, and broadband Laguerre-Gaussian modes from a Janus optical parametric oscillator

et al. 2023

View full text Add to dashboard Cite

Laguerre-Gaussian (LG) modes, carrying the orbital angular momentum of light, are critical for important applications, such as high-capacity optical communications, superresolution imaging, and multidimensional quantum entanglement. Advanced developments in these applications demand reliable and tunable LG mode laser sources, which, however, do not yet exist. Here, we experimentally demonstrate highly efficient, highly pure, broadly tunable, and topological-charge-controllable LG modes from a Janus optical parametric oscillator (OPO). The Janus OPO featuring a two-faced cavity mode is designed to guarantee an efficient evolution from a Gaussian-shaped fundamental pump mode to a desired LG parametric mode. The output LG mode has a tunable wavelength between 1.5 and 1.6 μm with a conversion efficiency >15%, a controllable topological charge up to 4, and a mode purity as high as 97%, which provides a high-performance solid-state light source for high-end demands in multidimensional multiplexing/demultiplexing, control of spin-orbital coupling between light and atoms, and so on.

show abstract

“…Since their proposal by Berger [1] and their first realization [2], χ (2) nonlinear photonic crystals (NPC) with a two-dimensional poling pattern have attracted great interest due to their potential applications in nonlinear optics [3][4][5][6][7][8][9], as well as in quantum optics for the generation and engineering of entangled states [10][11][12][13][14][15]. Considering parametric down-conversion (PDC) from an intense pump beam into twin photons or twin beams of lower frequencies, the vectors of the 2D reciprocal lattice associated to the nonlinear grating indeed offer multiple quasiphasematching (QPM) possibilities not encountered in more conventional one-dimensional structures.…”

Section: Introductionmentioning

confidence: 99%

Efficient parametric generation in a nonlinear photonic crystal pumped by a dual beam

Brambilla

Gatti

2019

Opt. Express

View full text Add to dashboard Cite

We investigate parametric down-conversion in a hexagonally poled nonlinear photonic crystal, pumped by a dual pump with a transverse modulation that matches the periodicity of the χ (2) nonlinear grating. A peculiar feature of this resonant configuration is that the two pumps simultaneously generate photon pairs over an entire branch of modes, via quasi-phasematching with both fundamental vectors of the reciprocal lattice of the nonlinearity. The parametric gain of these modes depends thus coherently on the sum of the two pump amplitudes and can be controlled by varying their relative intensities and phases. We find that a significant enhancement of the source conversion efficiency, comparable to that of one-dimensionally poled crystals, can be achieved by a dual symmetric pump. We also show how the four-mode coupling arising among shared modes at resonance can be tailored by changing the dual pump parameters.Considering e.g. inversion domains shaped as discs of radius R = 0.28Λ (Fig. 2(a)), one has d 01 = d 10 = 0.32d e f f [22], d e f f denoting the effective nonlinear susceptibility of the χ (2) material.

show abstract

Multi-resonant optical parametric oscillator based on 2D-PPLT nonlinear photonic crystal

Cited by 15 publications

References 26 publications

Second Harmonic Generation in 1D Nonlinear Plasma Photonic Crystals

Second Harmonic Generation in 1D Nonlinear Plasma Photonic Crystals

Generation of high-efficiency, high-purity, and broadband Laguerre-Gaussian modes from a Janus optical parametric oscillator

Efficient parametric generation in a nonlinear photonic crystal pumped by a dual beam

Contact Info

Product

Resources

About