Application of spectral-hole burning in the inhomogeneously broadened gain of self-assembled quantum dots to a multiwavelength-channel nonlinear optical device

Akiyama, T.; Kuwatsuka, H.; Simoyama, T.; Nakata, Yoshihiro; Mukai, Kohki; Sugawara, Mitsuru; Wada, Osamu; Ishikawa, Hiroshi

doi:10.1109/68.883810

Cited by 72 publications

(25 citation statements)

References 6 publications

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“…In our simulation, we do not include this effect, because we consider that the QD density is uniform. It has been found that gain saturation of QD-SOAs is uniform up to above 1 ns [39]. In practical, we can easily achieve 160 Gb/s data rate without any pattern effects in the QD-SOA, which is two to three orders faster than bulk InGaAsP SOAs [40].…”

Section: Qd-soa Model and Rate Equationsmentioning

confidence: 99%

Simultaneous all-optical basic arithmetic operations using QD-SOA-assisted Mach–Zehnder interferometer

Gayen¹,

Chattopadhyay²

2016

J Comput Electron

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All-optical logic and arithmetic operations are expected to play an important role in high-speed communication systems. In this paper, we have presented a model to perform two basic arithmetic operations (addition/subtraction) on two binary digits based on a quantum dot semiconductor optical amplifier (QD-SOA)-assisted MachZehnder interferometer. Using two QD-SOA-based switches, we have designed a half adder/subtractor circuit. The main advantage of this circuit is that simultaneous addition and subtraction operations are realized at the outputs. This circuit is designed theoretically and verified through numerical simulations. The theoretical study is carried out by taking into account the effect of amplified spontaneous emission. The dependence of the peak data power and that of the QD-SOA current density and length on the ER and Q factor of the switching outcome are explored and assessed by means of numerical simulations. The desirable device parameters has been examined in order to obtain the optimum best performance.Keywords Quantum dot semiconductor optical amplifier · Mach-Zehnder interferometer · All-optical signal processing · All-optical arithmetic operation B Tanay Chattopadhyay

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Section: Qd-soa Model and Rate Equationsmentioning

confidence: 99%

Simultaneous all-optical basic arithmetic operations using QD-SOA-assisted Mach–Zehnder interferometer

Gayen¹,

Chattopadhyay²

2016

J Comput Electron

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“…To date, numerous nonlinear gates have been demonstrated for regeneration, mainly based on semiconductor optical amplifiers (SOAs) [10][11][12][13], optical fibers [2][3][4][5][6][7][8], saturable absorbers [14][15], synchronous modulation associated with narrow band filtering [16][17] and electro absorption modulators (EAMs) [18][19]. However, only a few of them are truly appropriate candidates for high bit rates and high capacity WDM systems.…”

Section: Introductionmentioning

confidence: 99%

“…However, only a few of them are truly appropriate candidates for high bit rates and high capacity WDM systems. Quantum dot SOAs (QD-SOAs) could potentially provide multi-wavelength operation at high bit rates [11][12][13], thanks to their saturated gain response time (of the order of 100fs to 1ps), leading to negligible patterning effects, and spatial isolation of dots, leading to spectrally localized effects and, thus, to crosstalk suppression between WDM channels under gain saturation conditions. However, very little experimental work has been published to date [20] demonstrating their multi-wavelength operation in support of the encouraging numerical predictions [13].…”

Section: Introductionmentioning

confidence: 99%

Progress in Multichannel All-Optical Regeneration Based on Fiber Technology

Parmigiani

Provost²,

Petropoulos

et al. 2012

IEEE J. Select. Topics Quantum Electron.

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Abstract-Multi-wavelength all-optical regeneration has the potential to substantially increase both the capacity and scalability of future optical networks. In this paper we review recent promising developments in this area. First we recall the basic principles of multi-channel regeneration of high bit rate signals in optical communication systems before discussing the current technological approaches. We then describe in detail two fiber-based multi-channel 2R regeneration techniques for RZ-OOK based on (a) dispersion managed systems and (b) direction and polarization multiplexing. We present results illustrating the levels of performance so far achieved and discuss various practical issues and prospects for further performance enhancement.Index Terms-Nonlinear optical, devices; Kerr effect; signal regeneration; nonlinear optical signal processing; ultrafast processes in fibers.

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“…For the last decade, self-assembled semiconductor quantum dot (QD) has been widely studied in terms of fundamental physics and for the application of optoelectronic devices such as laser diodes and light-emitting diodes [1][2][3]. Due to the intrinsic properties of a QD, which is a three-dimensionally confined structure and has atomic-like joint density of states, as an example, a QD laser should have a higher gain, lower threshold current density, and higher thermal stability compared to other quantum structures [3,4].…”

Section: Introductionmentioning

confidence: 99%

Self-assembled InAs quantum dots with two different matrix materials

Kim

2006

Journal of Crystal Growth

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Application of spectral-hole burning in the inhomogeneously broadened gain of self-assembled quantum dots to a multiwavelength-channel nonlinear optical device

Cited by 72 publications

References 6 publications

Simultaneous all-optical basic arithmetic operations using QD-SOA-assisted Mach–Zehnder interferometer

Simultaneous all-optical basic arithmetic operations using QD-SOA-assisted Mach–Zehnder interferometer

Progress in Multichannel All-Optical Regeneration Based on Fiber Technology

Self-assembled InAs quantum dots with two different matrix materials

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