The fission of N-solitons is a key mechanism leading to the supercontinuum generation and creation of hyper-compressed pulses and solitons featuring strong wavelength tuning [1, 2]. Recent advances in manufacturing PCFs filled with Raman-inactive gases  provide a strong motivation to focus the studies on the fission driven by the third-order dispersion (TOD) , and potential applications of this setting to photonics. In the absence of the Raman-induced self-frequency shift and the Raman-associated noise, fission-produced strongly compressed solitons, once generated, may propagate keeping constant internal frequencies. A higher-order N-soliton, u = NP0sech(T/T0) is launched into the fiber, where T0 and P0 are width and peak power of the corresponding fundamental soliton. If the TOD dispersion/33 is very small, it can be considered as a perturbation added to the second-order dispersion, ß2. In this case, the peak power of each fundamental soliton emerging after the splitting of the N-soliton is given by the classical result, Pj = P0(2N - 2j + 1)2 . If ß3 is larger, it leads to a significant increase in the largest fundamental-soliton's peak power and compression degree, along with the increase of the wavelength shift. However, further increase of/33 leads to a loss of the peak-power enhancement. For optimal pulse compression and wavelength conversion, universal optimal value of TOD strength parameter δ3 = β3/(6β2Τ0) was found. This optimal value is valid for any pulse duration, second- and third-order dispersion coefficients, depending solely on order N of the injectedsoliton (Fig. 1(a)). The optimal pulse-compression degree significantly exceeds the well-known analytical prediction , as shown in Figs. 1(b, d).
|State||Published - 2013|
|Event||2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 - Munich, Germany|
Duration: 12 May 2013 → 16 May 2013
|Conference||2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013|
|Period||12/05/13 → 16/05/13|