Pedestal free pulse compression of chirped optical solitons

Senthilnathan, K.; Nakkeeran, K.; Li, Qian; Wai, P.K.A.

doi:10.1016/j.optcom.2011.11.022

Cited by 16 publications

(9 citation statements)

References 21 publications

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“…Thus, high degree pulse compression in a short distance is more desirable. It has been demonstrated that chirped high order solitons in a dispersion varying medium is effective in enhancing the compression in short distance [21]. Specifically, when a chirped 2-soliton breather is used, the compression factor can be enhanced by more than 3 times in a same propagation distance [21].…”

Section: Chirped 2-soliton Breather Compressionmentioning

confidence: 99%

“…Thus, a high degree pulse compression in a short distance of the waveguide taper is desirable. It has been shown that the compression factor of self-similar compression for the same waveguide length can be enhanced by more than 3 times if 2-soliton breather is used [21]. For 2-soliton breathers, the periodic higher-order soliton evolution accompanies the self-similar compression.…”

Section: Chirped 2-soliton Breather Compression In a Slotmentioning

confidence: 99%

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High Degree Picosecond Pulse Compression in Chalcogenide-Silicon Slot Waveguide Taper

Mei

Yuan

et al. 2016

J. Lightwave Technol.

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Abstract-In this paper, we propose and design a chalcogenide (As2S3) based slot waveguide taper with exponentially decreasing dispersion profile to realize high degree pulse compression of low power chirped solitons. Based on the waveguide taper designed, self-similar pulse compression of fundamental solitons and chirped 2-soliton breather are both investigated numerically. With self-similar pulse compression scheme, a 1 ps input pulse is compressed to 81.5 fs in 6 cm propagation. By using 2-soliton breather pulses, a 1 ps chirped pulse is compressed to 80.3 fs in just 2.54 cm. This is the first demonstration of the feasibility of high degree nonlinear pulse compression in As2S3-based slot waveguide taper.Index Terms-Self-similar pulse compression, fundamental soliton, 2-soliton breather, As2S3-based slot waveguide taper.

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Section: Chirped 2-soliton Breather Compressionmentioning

confidence: 99%

Section: Chirped 2-soliton Breather Compression In a Slotmentioning

confidence: 99%

High Degree Picosecond Pulse Compression in Chalcogenide-Silicon Slot Waveguide Taper

Mei

Yuan

et al. 2016

J. Lightwave Technol.

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“…(5) in which the nonlinearity is assumed to be constant, i.e. γ(z) = γ(0), has been well studied [21,33,40]. From Eqs.…”

Section: Theoretical Model and Principlementioning

confidence: 99%

“…But adiabatic compression requires long length of fiber [26][27][28][29]. Self-similar compression can avoid the drawbacks in the above two pulse compression schemes and provide pedestal-free pulse compression with high compression factor in a short segment of fiber [30][31][32][33][34]. Selfsimilar compression of chirped solitons in dispersion exponentially decreasing fibers (DEDFs) has been discussed [21,32,33].…”

Section: Introductionmentioning

confidence: 99%

Highly coherent supercontinuum generation with picosecond pulses by using self-similar compression

Li¹,

Li²,

Yuan³

et al. 2014

Opt. Express

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The low coherence of the supercontinuum (SC) generated using picosecond pump pulses is a major drawback of such SC generation scheme. In this paper, we propose to first self-similarly compress a high power picosecond pump pulse by injecting it into a nonlinearity increasing fiber. The compressed pulse is then injected into a non-zero dispersion-shifted fiber (NZ-DSF) for SC generation. The nonlinearity increasing fiber can be obtained by tapering a large mode area photonic crystal fiber. The fiber nonlinearity is varied by varying the pitch sizes of the air holes. By using the generalized nonlinear Schrödinger equation, we show that a 1 ps pump pulse with random noise can be compressed self-similarly down to a pulse width of 53.6 fs with negligible pedestal. The noise level of the compressed pulse is reduced at the same time. The 53.6 fs pulse can then be used to generate highly coherent SC in an NZ-DSF. By using the proposed scheme, the tolerance of noise level for highly coherent SC generation with picosecond pump pulses can be improved by 5 order of magnitude.

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“…But the long fiber length required is undesirable in most systems because of compactness and cost [16][17][18]. Compared with the adiabatic compression, self-similar pulse compression can achieve large compression factor without pedestal generation in much shorter nonlinear media [3,[19][20][21][22][23]. In a 6.4 m nonlinearity increasing photonic crystal fiber (PCF) taper, a 1 ps pulse is self-similarly compressed to 53.6 fs with low pedestal [3].…”

Section: Introductionmentioning

confidence: 99%

Mid-infrared self-similar compression of picosecond pulse in an inversely tapered silicon ridge waveguide

Yuan

Chen

et al. 2017

Opt. Express

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Abstract:On chip high quality and high degree pulse compression is desirable in the realization of integrated ultrashort pulse sources, which are important for nonlinear photonics and spectroscopy. In this paper, we design a simple inversely tapered silicon ridge waveguide with exponentially decreasing dispersion profile along the propagation direction, and numerically investigate self-similar pulse compression of the fundamental soliton within the mid-infrared spectral region. When higher-order dispersion (HOD), higher-order nonlinearity (HON), losses (α), and variation of the Kerr nonlinear coefficient γ(z) are considered in the extended nonlinear Schrödinger equation, a 1 ps input pulse at the wavelength of 2490 nm is successfully compressed to 57.29 fs in only 5.1-cm of propagation, along with a compression factor F c of 17.46. We demonstrated that the impacts of HOD and HON are minor on the pulse compression process, compared with that of α and variation of γ(z). Our research results provide a promising solution to realize integrated mid-infrared ultrashort pulse sources. Richardson, and U. Keller, "Nonlinear femtosecond pulse compression at high average power levels by use of a large-mode-area holey fiber," Opt. Lett. 28(20), 1951-1953 (2003). 1430-1439 (1997). 12. Q. Li, J. N. Kutz, and P. K. A. Wai, "Cascaded higher-order soliton for non-adiabatic pulse compression," J.Opt. Soc. Am. B 27(11), 2180-2189 (2010). 13. A. C. Peacock, "Mid-IR soliton compression in silicon optical fibers and fiber tapers," Opt. Lett. 37(5), 818-820 (2012). 14. S. V. Chernikov, E. M. Dianov, D. J. Richardson, and D. N. Payne, "Soliton pulse compression in dispersiondecreasing fiber," Opt. Lett. 18(7), 476-478 (1993) V. Krishnamoorthy, "Ultralow-loss, high-density SOI optical waveguide routing for macrochip interconnects," Opt. Express 20(11), 12035-12039 (2012). 43. S. Lavdas, J. B. Driscoll, R. R. Grote, R. M. Osgood, and N. C. Panoiu, "Pulse compression in adiabatically tapered silicon photonic wires," Opt. Express 22(6), 6296-6312 (2014). 44. K. Senthilnathan, Q. Li, K. Nakkeeran, and P. K. A. Wai, "Robust pedestal-free pulse compression in cubicquintic nonlinear media," Phys. Rev. A 78, 033835 (2008).

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Pedestal free pulse compression of chirped optical solitons

Cited by 16 publications

References 21 publications

High Degree Picosecond Pulse Compression in Chalcogenide-Silicon Slot Waveguide Taper

High Degree Picosecond Pulse Compression in Chalcogenide-Silicon Slot Waveguide Taper

Highly coherent supercontinuum generation with picosecond pulses by using self-similar compression

Mid-infrared self-similar compression of picosecond pulse in an inversely tapered silicon ridge waveguide

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