Group velocity coupling and synchronization-like phenomenon of two light beams based on coherent population oscillations

Melle, Sonia; Calderón, Óscar G.; Moreno, M.

doi:10.1088/0953-4075/43/21/215401

Cited by 13 publications

(4 citation statements)

References 24 publications

(48 reference statements)

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“…Schweinsberg et al measured slow light and fast light propagation in a fiber in 2006 [8]. Melle et al studied both 1550 nm and 980 nm lasers into an erbium-doped fiber amplifier to observe slow light and superluminal propagation in 2010 [9]. In 2011, Melle et al reported pulse width dependent subluminal and superluminal propagation in highly doped erbium fibers.…”

Section: Introductionmentioning

confidence: 99%

Research on the effects of dual pumping on fast light propagation in an Er³⁺-doped optical fiber

Qiu¹,

Gao²,

Wu³

et al. 2019

Laser Phys. Lett.

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In this paper, we propose a general theory for the coherent population oscillation effect in an Er 3+ -doped optical fiber under dual-frequency laser pumping at room temperature. We aim at comparing the effect of dual pumping (1480 nm and 980 nm) with single pumping of 980 nm and single pumping of 1480 nm on time advancement. According to the numerical calculations, we analyze the relationships between relative modulation attenuation and modulation frequency, plus fractional advancement and modulation frequency under the dualfrequency pumping laser with co-propagation. Compared to single pumping, a greater change in the group refractive index can be found. The maximum time advancement of 0.24 ms under a dual-frequency pump laser with co-propagation is obtained. Moreover, we demonstrate the influence of the pump ratio M on time advancement with modulation frequencies of 40 Hz, 100 Hz and 200 Hz. The ability to control the group velocity of light could have an important application for photonics.

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Section: Introductionmentioning

confidence: 99%

Research on the effects of dual pumping on fast light propagation in an Er³⁺-doped optical fiber

Qiu¹,

Gao²,

Wu³

et al. 2019

Laser Phys. Lett.

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“…In 2010, Lauro et al observed the slow light phenomenon in a Tm 3+ -doped yttrium-aluminum-garnet crystal [10]. In 2010, Melle et al studied 1550 nm and 980 nm lasers in an erbium-doped fiber (EDF) amplifier to observe slow light and superluminal propagation [11]. In 2013, slow and fast light via two-wave mixing in an ytterbium-doped fiber at 1064 nm were investigated in detail [12].…”

Section: Introductionmentioning

confidence: 99%

Oscillation of metastable population and slow light propagation in a Tm³⁺-doped optical fiber

Qiu¹,

Wang²,

Li³

et al. 2017

Laser Phys.

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The relationship between the oscillation of a metastable population and the slow light propagation in a Tm 3+ -doped optical fiber at room temperature is discussed. We study the influencing factors of the metastable population oscillation, such as the length of the Tm 3+doped fiber, the input signal power and the pump power. Further, we obtain the relationships between the length of the Tm 3+ -doped optical fiber, the input signal power and the pump power and the oscillation of metastable population in order to slow down the light pulse propagation speed through an optical fiber at room temperature.

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“…In 2009, Lauro et al observed a slow light phenomenon in a Tm 3+ -doped yttrium-aluminum-garnet crystal [6]. In 2010, Melle et al studied both 1550 nm and 980 nm lasers in an erbium-doped fiber (EDF) amplifier to observe slow light and superluminal propagation [7]. In 2013, Enrique et al investigated in detail slow and fast light via two-wave mixing in an ytterbium-doped fiber at 1064 nm [8].…”

Section: Introductionmentioning

confidence: 99%

Research on the speed of light transmission in a dual-frequency laser pumped single fiber with two directions

Qiu¹,

Li²,

Wang³

et al. 2017

Laser Phys. Lett.

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In this article a general theory of the coherent population oscillation effect in an erbium-doped fiber at room temperature is presented. We use dual pumping light waves with a simplified two-level system. Thus the time delay equations can be calculated from rate equations and the transmission equation. Using numerical simulation, in the case of dual-frequency pump light waves (1480 nm and 980 nm) with two directions, we analyze the influence of the pump power ratio on the group speed of light propagation. In addition, we compare slow light propagation with a single-pumping light and slow light propagation with a dual-pumping light at room temperature. The discussion shows that a larger time delay of slow light propagation can be obtained with a dual-frequency pumping laser. Compared to previous research methods, a dual-frequency laser pumped fiber with two directions is more controllable. Moreover, we conclude that the group velocity of light can be varied by changing the pump ratio.

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Group velocity coupling and synchronization-like phenomenon of two light beams based on coherent population oscillations

Cited by 13 publications

References 24 publications

Research on the effects of dual pumping on fast light propagation in an Er³⁺-doped optical fiber

Research on the effects of dual pumping on fast light propagation in an Er³⁺-doped optical fiber

Oscillation of metastable population and slow light propagation in a Tm³⁺-doped optical fiber

Research on the speed of light transmission in a dual-frequency laser pumped single fiber with two directions

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Group velocity coupling and synchronization-like phenomenon of two light beams based on coherent population oscillations

Cited by 13 publications

References 24 publications

Research on the effects of dual pumping on fast light propagation in an Er3+-doped optical fiber

Research on the effects of dual pumping on fast light propagation in an Er3+-doped optical fiber

Oscillation of metastable population and slow light propagation in a Tm3+-doped optical fiber

Research on the speed of light transmission in a dual-frequency laser pumped single fiber with two directions

Contact Info

Product

Resources

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Research on the effects of dual pumping on fast light propagation in an Er³⁺-doped optical fiber

Research on the effects of dual pumping on fast light propagation in an Er³⁺-doped optical fiber

Oscillation of metastable population and slow light propagation in a Tm³⁺-doped optical fiber