Dispersionless slow light using gap solitons

Mok, Joe T.; Sterke, C. Martijn de; Littler, Ian C. M.; Eggleton, Benjamin J.

doi:10.1038/nphys438

Cited by 271 publications

(185 citation statements)

References 34 publications

Supporting

Mentioning

181

Contrasting

Unclassified

Order By: Relevance

“…The state-of-the-art techniques for achieving all-optical delays are based on a slowing down of the light, i.e., they rely on dispersion modifying the ͑longitudinal͒ group velocity. Nearly all proposed systems use some kind of resonance ͑electromagnetically induced transparency, 3 stimulated Brillouin scattering, 4 Raman scattering, 5 quantum dots and quantum wells, 6,7 fiber Bragg gratings, 8 and microresonators 9 ͒ though a promising recent scheme uses wavelength conversion. 10 In this letter, we propose a different approach to alloptical delay lines and we give a proof-of-principle demonstration based on single pulse operation.…”

Section: R Jägermentioning

confidence: 99%

All-optical delay line using semiconductor cavity solitons

Pedaci

Barland

Caboche

et al. 2008

Applied Physics Letters

115

View full text Add to dashboard Cite

Section: R Jägermentioning

confidence: 99%

All-optical delay line using semiconductor cavity solitons

Pedaci

Barland

Caboche

et al. 2008

Applied Physics Letters

115

View full text Add to dashboard Cite

“…Furthermore, GS have the amazing property that they can travel at any speed between zero and the speed of light of the bare fiber. This possibility to have "slow light" or "trapped light" inside small FBG devices has made them extremely promising for the manufacturing of all-optical buffers and storing devices, and have fueled numerous studies on GS dynamics and stability in FBG in the past 15 years (see, e.g., [4,5,6,7] for reviews, and [8] for a recent experimental realization).…”

Section: Introductionmentioning

confidence: 99%

Light Pulse Interaction with Narrow Defects in Fiber Bragg Gratings

Martel¹

2010

View full text Add to dashboard Cite

Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS.

show abstract

mentioning

confidence: 99%

“…Various methods have been proposed for creating slow gap solitons: building up slow gap solitons directly by Raman amplification [17], obtaining quiescent solitons from collisions of fast-moving gap solitons [18], and retarding fast solitons by passing them through gradually varying ("apodized") Bragg gratings [19]. In a recent experimental breakthrough, optical gap solitons were slowed to a sixth the speed of light using apodized Bragg gratings [20].Electrostriction, compression of the medium due to variations of the intensity of light, allows light to drive acoustic waves; conversely, acoustic waves feed back into the optical field through the dependence of the refractive index on the material density. Gap solitons can be arbitrarily slow; at velocities close to the speed of sound, an optoacoustic resonance may dramatically enhance the interplay between light and sound.…”

mentioning

confidence: 99%

Optoacoustic Solitons in Bragg Gratings

2007

View full text Add to dashboard Cite

Optical gap solitons, which exist due to a balance of nonlinearity and dispersion due to a Bragg grating, can couple to acoustic waves through electrostriction. This gives rise to a new species of "gap-acoustic" solitons (GASs), for which we find exact analytic solutions. The GAS consists of an optical pulse similar to the optical gap soliton, dressed by an accompanying phonon pulse. Close to the speed of sound, the phonon component is large. In subsonic (supersonic) solitons, the phonon pulse is a positive (negative) density variation. Coupling to the acoustic field damps the solitons' oscillatory instability, and gives rise to a distinct instability for supersonic solitons, which may make the GAS decelerate and change direction, ultimately making the soliton subsonic.PACS numbers: 42.81. Dp, 42.70.Qs, 43.25.+y, 72.50.+b Introduction.-Light and sound tend to have widely disparate frequencies, wavelengths, and velocities. As a consequence, interaction between optical and acoustic signals is often weak. The interaction is important, e.g., for Brillouin scattering, diffraction of light by ultrasonic waves [1]. Brillouin scattering in optical fibers-coupling of longitudinal or transverse acoustic modes to optical waves through electrostriction-has been analyzed extensively, though generally not for solitons [2,3,4,5,6]. Sound waves acting on trains of optical solitons in fibers have been studied [7,8], but these interactions were essentially between acoustic continuous waves and their optical counterparts, subject to periodic modulation. Brillouin scattering has been employed in acousto-optic filters, in which light diffracts off an acoustic grating [6]. Brillouin scattering in fibers can lead to pulse compression [9] or formation of trains of very narrow optical solitons [10]. Interaction of phonons with optical nonlinear Schrödinger solitons, with nonlinearity due to electromagnetically-induced transparency, was analyzed in Ref. [11]. Reference [12] considered solitons in Bragg gratings, with electrostriction the only nonlinearity; the correct soliton solution is a limiting case of the results below.In this work, we consider light and acoustic waves in a cubic (χ (3) ) nonlinear medium with a Bragg grating, a fixed spatially periodic variation in the index of refraction [13]. Bragg gratings are typically written in the cladding of an optical fiber, though they have been induced by copropagating continuous waves [14]. Fiber Bragg gratings without electrostriction are known to support optical gap solitons, nonlinear solitary waves with frequencies in the band gap created by the Bragg grating [13,15,16]. Gap solitons can have arbitrarily small velocity, which has motivated great interest in them for stopping light, though creating very slow gap solitons experimentally has been difficult. Early experimental realizations of gap solitons had velocities approximately half the speed of light [16]. Various methods have been proposed for creating slow gap solitons: building up slow gap solitons directly by Raman amplif...

show abstract

Dispersionless slow light using gap solitons

Cited by 271 publications

References 34 publications

All-optical delay line using semiconductor cavity solitons

All-optical delay line using semiconductor cavity solitons

Light Pulse Interaction with Narrow Defects in Fiber Bragg Gratings

Optoacoustic Solitons in Bragg Gratings

Contact Info

Product

Resources

About