Incoherent switching between multistable cavity solitons in a semiconductor optical resonator

Michaelis, Dirk; Peschel, Ulf; Lederer, F.

doi:10.1364/ol.23.000337

Cited by 14 publications

(2 citation statements)

References 7 publications

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“…For practical purposes, however, speed is of prime importance and compatibility with semiconductor technology is desirable. Spatial solitons and their switching in semiconductor microresonators have therefore been predicted theoretically recently [7,9]. With the aim of realizing spatial solitons in semiconductor resonators, experiments were conducted recently, addressing passive resonators [10] and resonators with population inversion [11].…”

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confidence: 99%

Incoherent optical switching of semiconductor resonator solitons

Taranenko

Weiß

2001

Appl Phys B

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We demonstrate experimentally the bistable nature of the bright spatial solitons in a semiconductor microresonator and show that they can be created and destroyed by incoherent local optical injection.PACS 42.65.Sf; 42.65.Tg; 42.70.Nq Spatial optical solitons i.e. light beams propagating without transverse spreading arise when diffraction is balanced by a nonlinear process such as self-focussing in a nonlinear dispersive or reactive medium. Light propagating inside an optical resonator filled with a nonlinear medium can thus form stable filaments, or localized structures (spatial solitons). These are free to move in the resonator cross section (or move by themselves [1]) which implies their bistability, and ability to carry information. The mobility of spatial solitons, however, makes them different from arrangements of fixed binary elements, so that new types of information processing have been considered, making use of spatial resonator solitons.Early realisations of such resonator solitons in slow materials were given in [2,3]. We investigated in the past spatial resonator solitons of phase-type [4] and intensity type [5], including experiments demonstrating large simultaneous collections of solitons [6] and their manipulation [5] as is required for practical applications. These experiments were conducted using slow nonlinear materials for the sake of easy observeability of the complex 2D space-time dynamics. For practical purposes, however, speed is of prime importance and compatibility with semiconductor technology is desirable. Spatial solitons and their switching in semiconductor microresonators have therefore been predicted theoretically recently [7,9]. With the aim of realizing spatial solitons in semiconductor resonators, experiments were conducted recently, addressing passive resonators [10] and resonators with population inversion [11]. We showed the spontaneous formation of bright and dark spatial solitons in [12]. We confirm here the bistable nature of the bright spatial semiconductor resonator solitons by the results of local switching experiments and demonstrate the incoherent writing and erasing of the bright solitons.The experimental arrangement (FIG. 1) was essentially as described in [10] and [12]. Light of a Ti:Al 2 O 3 -laser around 855 nm wavelength illuminates the semiconductor resonator sample. This consists of two Bragg mirrors of about 99,5 % reflectivity and 18 pairs of GaAs/GaAlAsquantum-wells between them. The band edge and the wavelength of the exciton line is at 849 nm. Observations are done in reflection because the substrate material (GaAs) is opaque at the working wavelength.The laser light is modulated by a mechanical chopper to limit illumination to durations of a few µs, in order to avoid thermal nonlinear effects. The repetition rate of the illuminations is 1 kHz, permitting stroboscopic

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confidence: 99%

Incoherent optical switching of semiconductor resonator solitons

Taranenko

Weiß

2001

Appl Phys B

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“…Experimentally, it was realized in optically pumped devices [18]. From a numerical point of view, both methods were analysed [19,20].…”

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confidence: 99%

Response of laser-localized structures to external perturbations in coupled semiconductor microcavities

Turconi¹,

Giudici²,

Barland³

2014

Phil. Trans. R. Soc. A.

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Laser-localized structures have been observed in several experiments based on broad-area semiconductor lasers. They appear as bounded regions of laser light emission which can exist independently of each other and are expected to be commuted via external optical perturbations. In this work, we perform a statistical analysis of time-resolved commutation experiments in a system of coupled lasers and show the role of wavelength, polarization and pulse energy in the switching process. Furthermore, we also analyse the response of the system outside of the stability region of laserlocalized states in search of an excitable response. We observe not only a threshold separating two types of responses, but also a strong variability in the system's trajectory when returning to the initial stable fixed point.

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Interactions between two-dimensional solitons in the diffractive–diffusive Ginzburg–Landau equation with the cubic–quintic nonlinearity

Wainblat

Malomed

2009

Physica D: Nonlinear Phenomena

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Incoherent switching between multistable cavity solitons in a semiconductor optical resonator

Abstract: We demonstrate numerically a two-dimensional threefold storage scheme based on different types of solitary waves in the transmitted field of a semiconductor planar resonator. Switching between among different solitary waves can be achieved by use of a weak incoherent switching beam.

Cited by 14 publications

References 7 publications

Incoherent optical switching of semiconductor resonator solitons

Incoherent optical switching of semiconductor resonator solitons

Response of laser-localized structures to external perturbations in coupled semiconductor microcavities

Interactions between two-dimensional solitons in the diffractive–diffusive Ginzburg–Landau equation with the cubic–quintic nonlinearity

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