All-optical digital-to-analog converter based on cross-phase modulation with temporal integration

Kong, Deming; Geng, Zihan; Foo, Benjamin; Rozental, Valery N.; Corcoran, Bill; Lowery, Arthur J.

doi:10.1364/ol.42.004549

Cited by 8 publications

(5 citation statements)

References 16 publications

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“…β 2j , β 3j (j = 1, 2) are the second-and third-order dispersion coefficients. The interaction between counterclockwise propagated wave and pump wave are modeled by assuming the pump as a continuous wave with power equal to its average power [29]. In our simulation, the symmetric split-step Fourier method is applied to implement the functions above with step length of 0.1 m.…”

Section: Numerical Model and Simulation Methodsmentioning

confidence: 99%

Tunable all-optical actively mode-locked fiber laser at 2 µm based on tellurite photonic crystal fiber

Huang

et al. 2018

Laser Phys. Lett.

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Although thulium-doped fiber lasers operating at 2 µm have been intensively investigated, lasers with high repetition rate (up to several tens of gigahertz) and tunable output characteristics are difficult to achieve at this band. In this paper, an all-optical actively mode-locked fiber laser is proposed for this purpose. By employing a section of specially-designed highly nonlinear group-velocity-matched tellurite photonic crystal fiber as the mode-locker, the proposed thulium-doped fiber laser can easily produce stable pulses with tunable pulse width and repetition rate up to 40 GHz. Moreover, through investigating the pulse dynamics in the cavity, a transfer-limited soliton pulse is successfully achieved. The proposed laser can find application in future optical fiber communication systems at 2 µm.

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Section: Numerical Model and Simulation Methodsmentioning

confidence: 99%

Tunable all-optical actively mode-locked fiber laser at 2 µm based on tellurite photonic crystal fiber

Huang

et al. 2018

Laser Phys. Lett.

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show abstract

“…β 2j , β 3j ( j = 1, 2) are the second-order and third-order dispersion coefficients. According to the designed fiber, The interaction between counterclockwise propagated wave and pump wave are modeled by assuming the pump as a continuous wave with power equal to its average power [25].…”

Section: Numerical Modelmentioning

confidence: 99%

Mid-infrared high repetition mode-locked laser based on cross-band all-optical injection modulation

Qian

Huang

et al. 2020

Laser Phys. Lett.

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High speed pulse generation with adjustable output characteristics in the mid-infrared (MIR) wavelength is a challenge due to the lack of high speed optoelectronic modulator operating at this band. In this paper, we proposed a MIR actively mode-locked laser based on cross-band all-optical injection modulation. The proposed laser is modulated by injecting 1.55-µm pump pulses into the specially-designed cross-band group-velocity-matched fiber. By numerical simulation, we studied in detail the evolution mechanism of the pulses and the influence of the cavity parameters on the output pulse features. It is shown that the laser is suitable for high repetition rate pulse generation up to 40 GHz at 2.771 µm, and the pulse shape can be flexibly adjusted. The proposed MIR laser has great potential in MIR free-space optical (FSO) communication.

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“…Type‐II is to the mapping of transfer function, in which different states according to digital signal patterns are directly mapping to different transfer functions in the system. Examples of this include optical DACs based on correlators [10], semiconductor optical amplifier [11], nonlinear optical loop mirrors (NOLMs) [12], NOLMs with cross‐phase modulation [13]. However, the two types of optical DACs are unipolar, thus having only a positive polarity.…”

Section: Introductionmentioning

confidence: 99%

An optical digital‐to‐analog converter with a built‐in intensity converter consisting of silicon waveguide

Aikawa

Uenohara

2023

IET Optoelectronics

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Optical digital‐to‐analog converters (DACs) are key to overcoming the enormous power consumption caused by the slowdown of Moore's Law. In previous work, an optical DAC consisting of a signal generator and an intensity converter was presented. The generating component was integrated into the device, but a higher level of device integration is desirable. An optical DAC device with a built‐in intensity converter for a 2‐bit binary phase‐shift keying (BPSK) signal is demonstrated. The integrated device consists of two delay line interferometers (DLIs) with silicon waveguides. The first is used to generate a quadrature PSK (QPSK) signal from two BPSK signals, and the second is used to convert the QPSK constellation into light intensities. Experimental results show that the 2‐bit digital codes 00, 01, 10, and 11 can be successfully converted into four different light intensities depending on their pattern at 10 Gbps.

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All-optical digital-to-analog converter based on cross-phase modulation with temporal integration

Cited by 8 publications

References 16 publications

Tunable all-optical actively mode-locked fiber laser at 2 µm based on tellurite photonic crystal fiber

Tunable all-optical actively mode-locked fiber laser at 2 µm based on tellurite photonic crystal fiber

Mid-infrared high repetition mode-locked laser based on cross-band all-optical injection modulation

An optical digital‐to‐analog converter with a built‐in intensity converter consisting of silicon waveguide

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