Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Feature Issues

Effect of cross-phase modulation on supercontinuum generated in microstructured fibers with sub-30 fs pulses

G. Genty, M. Lehtonen, and H. Ludvigsen

Open Access Open Access

Abstract

We investigate the effects of cross-phase modulation between the solitons and dispersive waves present in a supercontinuum generated in microstructured fibers by sub-30 fs pulses. Cross-phase modulation is shown to have a crucial importance as it extends the supercontinuum towards shorter wavelengths. The experimental observations are confirmed through numerical simulations.

©2004 Optical Society of America

Full Article  |  PDF Article
More Like This
Enhanced bandwidth of supercontinuum generated in microstructured fibers

G. Genty, M. Lehtonen, H. Ludvigsen, and M. Kaivola
Opt. Express 12(15) 3471-3480 (2004)

Supercontinuum generation by femtosecond single and dual wavelength pumping in photonic crystal fibers with two zero dispersion wavelengths

T. Schreiber, T. V. Andersen, D. Schimpf, J. Limpert, and A. Tünnermann
Opt. Express 13(23) 9556-9569 (2005)

Dispersive wave generation by solitons in microstructured optical fibers

Ilaria Cristiani, Riccardo Tediosi, Luca Tartara, and Vittorio Degiorgio
Opt. Express 12(1) 124-135 (2004)

View More...

Supplementary Material (1)

Media 1: MOV (1390 KB)     

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (10)
Fig. 1.
Fig. 1. Dispersion profile of the microstructured fiber. λ ZD : zero-dispersion wavelength.

Download Full Size | PDF

Fig. 2.
Fig. 2. Supercontinuum spectra recorded at the output of the MF for increasing average input power. Pav : average power, XPM: cross-phase modulation, and DW: dispersive wave. λP =790 nm and Δ τ=27 fs.

Download Full Size | PDF

Fig. 3.
Fig. 3. Phase-matching condition for the generation of the dispersive wave (blue line). The SC spectrum is displayed as a black line. Pav =118 mW, λP =790 nm, and Δτ=27 fs. λDW denotes the wavelength of the dispersive wave calculated from Eq. (1).

Download Full Size | PDF

Fig. 4.
Fig. 4. Simulated SC spectrum. The parameters of the input pulse are the same as in the experiment shown in Fig. 3. For better comparison, the simulated spectrum was averaged over the same spectral window as is the resolution bandwidth of the optical spectrum analyzer applied in the experiments, i.e., 10 nm.

Download Full Size | PDF

Fig. 5.
Fig. 5. Simulated spectrogram of the continuum after a) 2 cm, b) 5cm, d) 15 cm and d) 50 cm of propagation along the MF. DW: dispersive wave. Pav =118 mW, λP =790 nm, and Δτ=27 fs.

Download Full Size | PDF

Fig. 6.
Fig. 6. Spectrogram and corresponding spectrum of the blue dispersive wave after a) 2 cm, b) 5 cm, c) 10 cm, d) 20 cm, e) 30 cm and f) 50 cm of propagation in the fiber.

Download Full Size | PDF

Fig. 7.
Fig. 7. Spectrogram animation of the soliton and dispersive wave. [Media 1]

Download Full Size | PDF

Fig. 8.
Fig. 8. Simulated spectrum of the dispersive wave for increasing propagation length using Eq. (3). a) z = 5 cm, b) z = 10 cm, and c) z = 20 cm.

Download Full Size | PDF

Fig. 9.
Fig. 9. Experimental spectra as a function of input power recorded at the output of 1 m of the same MF as in Fig. 2. λP =800 nm, and Δτ=140 fs. The dashed line represents the spectrum of the input pulse.

Download Full Size | PDF

Fig. 10.
Fig. 10. Simulated spectrogram of the continuum after 50 cm of propagation. λP =800 nm, Pav =50 mW and Δτ=140 fs. The parameters of the fiber are the same as the ones of Fig. 5.

Download Full Size | PDF

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

Δβ = β ( ω P ) − β ( ω DW ) = ( 1 − f R ) γ ( ω P ) P P − ∑ n ≥ 2 ( ω DW − ω P ) n n ! β n ( ω P ) = 0 ,
δ φ XPM ( T ) = 2 γ ( ω DW ) ∣ A ( T − Δ β 1 z ) ∣ 2 δz = 2 γ ( ω DW ) P S ( z ) sech ( T − Δ β 1 z T S ( z ) ) 2 δz ,
∂ B ∂ z + Δ β 1 ∂ B ∂ T + i β 2 ( ω DW ) 2 ∂ 2 B ∂ T 2 = i φ XPM .
Select as filters
Select Topics Cancel
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use