Observation of ultrashort pulse propagation anisotropy in a semiconductor quantum nanostructure optical waveguide by cross-correlation frequency resolved optical gating spectroscopy

Tsurumachi, Noriaki; Hikosaka, Kazunori; Wang, Xue‐Lun; Ogura, Mutsuo; Watanabe, Naoki; Hattori, Toshiaki

doi:10.1063/1.1596368

Cited by 8 publications

(5 citation statements)

References 18 publications

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“…Precise temporal and spectral measurements of the ultrafast pulse propagation in the SPNWs are of necessity to support its application, including recent phaseresolved short pulse measurements on-chip [19]. Crosscorrelation frequency-resolved optical gating (XFROG) has been demonstrated to characterize well the complex time-frequency properties of ultrashort pulses while propagating through the semiconductor quantum optical waveguide [20] and fibers [21,22]. Here, we demonstrate cross-correlation frequency-resolved optical gating to investigate the pulse dynamics temporally and spectrally in SPNWs.…”

mentioning

confidence: 99%

Cross-correlation frequency-resolved optical gating and dynamics of temporal solitons in silicon nanowire waveguides

Liao

Marko

et al. 2013

Opt. Lett.

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We demonstrate the evolution of picosecond pulses in silicon nanowire waveguides by sum frequency generation cross-correlation frequency-resolved optical gating (SFG-XFROG) and nonlinear Schrödinger equation (NLSE) modeling. Due to the unambiguous temporal direction and ultrahigh sensitivity of the SFG-XFROG, which enable observation of the pulse accelerations, the captured pulses' temporal and spectral characteristics showed remarkable agreement with NLSE predictions. The temporal intensity redistribution of the pulses through the silicon nanowire waveguide for various input pulse energies is analyzed experimentally and numerically to demonstrate the nonlinear contributions of self-phase modulation, two-photon absorption, and free carriers. It indicates that free carrier absorption dominates the pulse acceleration. The model for pulse evolution during propagation through arbitrary lengths of silicon nanowire waveguides is established by NLSE, in support of chip-scale optical interconnects and signal processing.

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confidence: 99%

Cross-correlation frequency-resolved optical gating and dynamics of temporal solitons in silicon nanowire waveguides

Liao

Marko

et al. 2013

Opt. Lett.

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“…Actually, the FROG and SFG-XFROG are efficient tools for check the measurements of ultra-short laser pulses [ 18 , 19 , 20 ]. However, up to now, although we had checked the soliton behavior in the Si nanowire and PhCWs [ 21 , 22 , 23 , 24 , 25 , 26 ], there is unclarity about all details of the soliton propagation, especially the evolution dynamics of the low-energy soliton in the Si PhCWs, which are considered to be suitable to manage the solitons for the Si nanowire [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Observation of Ultrashort Laser Pulse Evolution in a Silicon Photonic Crystal Waveguide

et al. 2021

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Using the sum frequency generation cross-correlation frequency-resolved optical gating (SFG-XFROG) measurement setup, we observed the soliton evolution of low energy pulse in an Si photonic crystal waveguide, and it exhibited the pulse broadening, blue shift, and evident pulse acceleration. The soliton evolution was also investigated by nonlinear Schrödinger equation (NLSE) modelling simulation, and the simulated results agreed well with the experimental measurements. The effects of waveguide length on the pulse evolution were analyzed; the results showed that the pulse width changed periodically with increasing waveguide length. The results further the understanding of the ultra-fast nonlinear dynamics of solitons in silicon waveguides, and are helpful to soliton-based functional elements on CMOS-compatible platforms.

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“…With advantage of unambiguous temporal direction and high sensitivity, the sumfrequency generation cross-correlation frequency-resolved optical gating (SFG-XFROG), which derives from second-harmonic generation frequency-resolved optical gating (SHG-FROG), has been widely performed in ultrashort pulses measurements [25][26][27][28]. We applied the SFG-XFROG technique to investigate the pulse evolution in the Si PhCWs, particularly the pulse acceleration and the ultra-low power pulse evolution.…”

Section: Introductionmentioning

confidence: 99%

Unambiguous demonstration of soliton evolution in slow-light silicon photonic crystal waveguides with SFG-XFROG

Liao

Nie³

et al. 2015

Opt. Express

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We demonstrate the temporal and spectral evolution of picosecond soliton in the slow light silicon photonic crystal waveguides (PhCWs) by sum frequency generation cross-correlation frequency resolved optical grating (SFG-XFROG) and nonlinear Schrödinger equation (NLSE) modeling. The reference pulses for the SFG-XFROG measurements are unambiguously pre-characterized by the second harmonic generation frequency resolved optical gating (SHG-FROG) assisted with the combination of NLSE simulations and optical spectrum analyzer (OSA) measurements. Regardless of the inevitable nonlinear two photon absorption, high order soliton compressions have been observed remarkably owing to the slow light enhanced nonlinear effects in the silicon PhCWs. Both the measurements and the further numerical analyses of the pulse dynamics indicate that, the free carrier dispersion (FCD) enhanced by the slow light effects is mainly responsible for the compression, the acceleration, and the spectral blue shift of the soliton.

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Observation of ultrashort pulse propagation anisotropy in a semiconductor quantum nanostructure optical waveguide by cross-correlation frequency resolved optical gating spectroscopy

Cited by 8 publications

References 18 publications

Cross-correlation frequency-resolved optical gating and dynamics of temporal solitons in silicon nanowire waveguides

Cross-correlation frequency-resolved optical gating and dynamics of temporal solitons in silicon nanowire waveguides

Observation of Ultrashort Laser Pulse Evolution in a Silicon Photonic Crystal Waveguide

Unambiguous demonstration of soliton evolution in slow-light silicon photonic crystal waveguides with SFG-XFROG

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