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Efficient and Broadband Four‐Wave Mixing in a Compact ...

Abstract Confining light in a small volume offers an effective approach to enhance the four-wave mixing (FWM) process. Recently, most efforts are devoted to improve the conversion efficiencies by u...

Reduction of four wave mixing efficiency in DWDM systems ...

It was demonstrated that fiber nonlinearities can be reduced in the presence of optimal amount of PMD, and have achieved average reduction in four wave mixing efficiency of 6.9 dB within the interval of − 18 to 4 dBm launch power, and maximum of 14.5 dB at 2 dBm launch power for an 80 Gbps non-return-to-zero dense wavelength division ...

Efficient frequency conversion based on resonant four-wave ...

Efficient frequency conversion of photons has important applications in optical quantum technology because the frequency range suitable for photon manipulation and communication usually varies widely. Recently, an efficient frequency conversion system using a double-$Λ$ four-wave mixing (FWM) process based on electromagnetically induced transparency (EIT) has attracted considerable …

Four Wave Mixing - an overview | ScienceDirect Topics

Four-wave mixing, a nonlinear phenomenon discussed in Chapter 10, is known to affect the SRS in any medium [6]. Its impact on the SRS process in optical fibers has been studied extensively [24–32]. This subsection describes the relevant features qualitatively. To understand how four-wave mixing can influence SRS, it is useful to reconsider ...

Highly efficient four-wave mixing in double-$ensuremath ...

We perform a time-dependent analysis of four-wave mixing (FWM) in a double-$ensuremath{Lambda}$ system in an ultraslow-propagation regime and obtain the analytical expressions of pulsed probe laser, FWM-generated pulse, phase shifts and absorption coefficients, group velocities, and FWM efficiency. With these analytical expressions, we show that an efficiently …

Highly efficient four-wave mixing in a coherent six-level ...

Highly efficient four-wave mixing in a coherent six-level system in ultraslow propagation regime

Design and analysis of depolarized four-wave mixing in ...

In this work, the effect of different depolarization schemes on the conversion efficiency of four-wave mixing in a chalcogenide photonic crystal fiber is calculated and experimentally analyzed for high-speed characterization of nonlinear fibers.

High-efficiency generation of pulsed Lyman-α radiation by ...

High-efficiency generation of pulsed Lyman-αradiation by resonant laser wave mixing in low pressure Kr-Ar mixture Norihito Saito,1 Yu Oishi,3 Koji Miyazaki,1 Kotaro Okamura,1 Jumpei Nakamura,3,4 Oleg A. Louchev,1,* Masahiko Iwasaki,2 and Satoshi Wada1 1RIKEN Center for Advanced Photonics, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 2Advanced Meson Science Laboratory, RIKEN …

Four-wave mixing, explained by RP Photonics Encyclopedia ...

Four-wave mixing is a nonlinear effect arising from a third-order optical nonlinearity, as is described with a χ(3) coefficient. It can occur if at least two different optical frequency components propagate together in a nonlinear medium such as an optical fiber. Figure 1: Generation of new frequency components via four-wave mixing.

(PDF) Ultra-high four wave mixing efficiency in slot ...

Indeed, a prelimi- to be fulfilled: the demand for miniaturization calls for struc- nary four-wave-mixing (FWM) experiment has shown the tures with very-high refractive index contrast and extreme generation of a wavelength-converted signal in a Si:nc slot nonlinear efficiency.

Efficient four-wave mixing based on multiple plasmonic ...

AlGaAs-on-insulator waveguide for highly efficient photon-pair generation via spontaneous four-wave mixing Hatam Mahmudlu, Stuart May, Alí Angulo, Marc Sorel, and Michael Kues Opt. Lett. 46 (5) 1061-1064 (2021)

Efficient Calculation of Time- and Frequency-Resolved Four ...

Efficient Calculation of Time- and Frequency-Resolved Four-Wave-Mixing Signals ... Herein, we review alternative methods for the calculation of four-wave-mixing signals, in which the relevant laser pulses are incorporated into the system Hamiltonian and the driven system dynamics is simulated numerically exactly. The emphasis is on the recently ...

Control of spatial four-wave-mixing efficiency in Bessel ...

Control of spatial four-wave-mixing efficiency in Bessel beams using longitudinal intensity shaping Ismail Ouadghiri-Idrissi, John M. Dudley, and Francois Courvoisier Phys. Rev. A 100, 043804 – Published 2 October 2019

Ultra-high four wave mixing efficiency in slot waveguides ...

We report on wavelength conversion through four-wave-mixing in silicon slot-waveguides with embedded silicon nanocrystals. The combination of strong optical confinement and Si:nc nonlinearity provides a huge waveguide nonlinear coefficient γ = 1100 W −1 m −1 .

High-efficiency backward four-wave mixing by quantum ...

Electromagnetically-induced-transparency-based four-wave mixing (FWM) in a resonant four-level double-Λ system has a maximum conversion efficiency (CE) of 25% due to spontaneous emission. Herein ...

35. Introduction to nonlinear optics

"N-wave-mixing processes" where N is the number of photons involved (including the emitted one). Frequency doubling is a "three-wave mixing" process. Emitted-light photon energy This cartoon illustrates a 6-wave mixing process. It would involve the (5) term in the wave equation.

Tunable phase matching for efficient four-wave-mixing ...

Download Citation | On Oct 6, 2021, Jiacheng Liu and others published Tunable phase matching for efficient four-wave-mixing Bragg scattering in microrings | Find, read and cite all the research ...

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High-efficiency and broadband four-wave mixing in a ...

A four-wave mixing conversion efficiency of −38.7dBand a 3-dB conversion bandwidth of 35 nm are achieved in the silicon-graphene strip waveguide with an optimized light-graphene interaction length of 60 μm. The interaction length is controlled by a windowed area of silica layer on the silicon waveguide.

Efficient continuous-wave four-wave mixing in bandgap ...

Efficient continuous-wave four-wave mixing in bandgap-engineered AlGaAs waveguides. Wathen JJ, Apiratikul P, Richardson CJ, Porkolab GA, Carter GM, Murphy TE. We present a side-by-side comparison of the nonlinear behavior of four passive AlGaAs ridge waveguides where the bandgap energy of the core layers ranges from 1.60 to 1.79 eV.

Giant enhanced four-wave mixing efficiency via two-photon ...

High efficiency four-wave mixing in double asymmetry quantum dots Chunchao Yu et al-Enhancement of Goos Hänchen shift due to a Rydberg state Seyyed Hossein Asadpour et al-Tunneling-induced highly efficient four-wave mixing in asymmetric double quantum wells Dong Sun et al-This content was downloaded from IP address 207.46.13.222 on 23/04/2020 ...

Tunneling-induced high-efficiency four-wave mixing in ...

An asymmetric double quantum well (QW) structure with resonant tunneling is suggested to achieve highly efficient four-wave mixing (FWM). We analytically demonstrate that resonant tunneling can induce a highly efficient mixing wave in such a semiconductor structure with a low-light pump wave. In particular, the FWM conversion efficiency can be enhanced dramatically in the vicinity of the ...

Highly efficient continuous-wave mid-infrared generation ...

Highly efficient continuous-wave mid-infrared generation based on intracavity difference frequency mixing - Volume 7. Skip to main content Accessibility help We use cookies to distinguish you from other users and to provide you with a better experience on our websites.

Visible photon generation via four-wave mixing in near ...

Optical nonlinearities can be strongly enhanced by operating in the so-called near-zero-index (NZI) regime, where the real part of the refractive index of the system under investigation approaches zero. Here we experimentally demonstrate semi-degenerate four-wave mixing (FWM) in aluminum zinc oxide thin films generating radiation tunable in the visible spectral region, where the material is ...

Phase-mismatch dependence of efficiency of wave generation ...

The generation wave efficiency with respect to phase mismatch in the four-wave mixing process is clarified experimentally in a single-mode fiber transmission line at 825 nm wavelength. The generated power of approximately 20 pW is measured successfully for input signal powers below 1 mW by the technique utilizing a heterodyne receiver and lock ...

Polarization effect on four-wave mixing efficiency in a ...

Four-wave mixing in a single-mode fiber is studied for general polarization states in input lights. A theory is developed for fiber four-wave mixing where the polarization states of input light are various and they change randomly when propagating through a fiber line. The results show that intensity beating between the propagating lights plays an important role in four-wave mixing efficiency ...

Efficient and Broadband Four‐Wave Mixing in a Compact ...

Efficient and Broadband Four-Wave Mixing in a Compact Silicon Subwavelength Nanohole Waveguide Yuxing Yang, Lu Sun, Yong Zhang, and Yikai Su* DOI: 10.1002/adom.201900810 In this paper, we propose a simple yet effective scheme by using a compact silicon subwavelength nanohole waveguide, which possesses a broadband and low-loss trans-mission.

Highly efficient continuous-wave mid-infrared generation ...

Highly efficient continuous-wave mid-infrared generation based on intracavity difference frequency mixing 3 Figure 2. (a) Simulated signal wavelength versus grating period at different crystal temperatures. (b) Simulated tuning curves for 55 C with 1018 nm=1080 nm pumping. the grating period at different temperatures when the

Microwave generation, Optical wave mixing, Wavelength ...

microwave output signal resulted from mixing two DFB laser wave can be written as following [19, 20]: ω = (ω-ω 2) (2) where ω 1 and ω 2 are optical frequencies of DFB first laser and second laser respectively. Polarization matching becomes a crucial problem for superposition wave such as in this two light-wave mixing.

Reduction of four wave mixing efficiency in DWDM systems ...

12%It was demonstrated that fiber nonlinearities can be reduced in the presence of optimal amount of PMD, and have achieved average reduction in four wave mixing efficiency of 6.9 dB within the interval of − 18 to 4 dBm launch power, and maximum of 14.5 dB at 2 dBm launch power for an 80 Gbps non-return-to-zero dense wavelength division ...