Phase-sensitive amplification of 11 WDM channels across bandwidth of 8 nm in a fibre optic parametric amplifier

Gordienko, Vladimir; Ferreira, Filipe; Lamb, Jacob R.; Szabó, Áron; Doran, Nick

doi:10.1109/ecoc48923.2020.9333194

Cited by 9 publications

(5 citation statements)

References 12 publications

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“…It should be noted that the OPA is scalable to other wavelengths because silicon nitride is transparent from the visible to the mid-infrared wavelength range. With the advantages of low noise and a small monolithic footprint, CW-pumped silicon nitride-based OPAs may open previously unattainable possibilities in optical communications (27), ultrafast spectroscopy (5), and quantum optics and metrology (6).…”

Section: Discussionmentioning

confidence: 99%

Overcoming the quantum limit of optical amplification in monolithic waveguides

Zhao

Twayana

et al. 2021

Sci. Adv.

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Optical amplifiers are essential in numerous photonic applications. Parametric amplifiers, relying on a nonlinear material to create amplification, are uniquely promising as they can amplify without generating excess noise. Here, we demonstrate amplification based on the third-order nonlinearity in a single chip while, in addition, reporting a noise figure significantly below the conventional quantum limit when operated in phase-sensitive mode. Our results show the potential of nanophotonics for realizing continuous-wave parametric amplification that can enable applications in optical communications, signal processing, and quantum optics across a wide range of frequencies.

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Section: Discussionmentioning

confidence: 99%

Overcoming the quantum limit of optical amplification in monolithic waveguides

Zhao

Twayana

et al. 2021

Sci. Adv.

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“…Looped polarization-insensitive FOPAs provide a platform to exploit the most prominent achievements of single polarization parametric amplification, such as multiband high gain amplification [4], [6], phase-sensitive amplification [9]- [11], etc. Looped PI-FOPAs can therefore be implemented for any applications envisaged for FOPAs.…”

Section: Potential Applicationsmentioning

confidence: 99%

“…An exclusive ability of parametric amplifiers (including FOPA) is phase-sensitive amplification [8]. It allows for noise figure approaching 0 dB [9] and can double sensitivity (or capacity) of low SNR links [10] or significantly increase a fiber optic link reach, e.g. Manuscript received XXX; accepted XXX.…”

Section: Introductionmentioning

confidence: 99%

Looped Polarization-Insensitive Fiber Optical Parametric Amplifiers for Broadband High Gain Applications

Gordienko

Ferreira

Gaur

et al. 2021

J. Lightwave Technol.

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We investigate polarization insensitive fiber optical parametric amplifiers (FOPAs) employing a balanced polarization diversity loop with at least two unidirectional gain fibers. We describe and compare three variants of looped polarization insensitive FOPAs optimized for noise figure, mitigation of nonlinear impairments and their trade-off, respectively. The test scenario consists of amplifying, by up to 14 dB, a set of 21x50 GHzspaced channels including a 35 GBaud PDM-QPSK signal, and evaluating a power of nonlinear crosstalk, noise figure and amplified signal BER for each variant. For the first time we demonstrate a polarization insensitive FOPA amplifying WDM signals with a noise figure as low as 5.8 dB, and a polarization insensitive FOPA with output WDM signal power of 23 dBm. The testing results let us identify likely application scenarios for each looped FOPA variant. We justify potential implementation of polarization-insensitive FOPAs in future optical communication systems by arguing its ability to deliver low noise figure <6 dB for output signal power as high as 29 dBm and to enable polarization insensitive gain for the most prominent single-polarization FOPA achievements realizing ultrawide high gain.

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“…Consequently, FOPAs have a synergy with trending topics such as free space communications, quantum communications, access networks and hollow core fibres for FOPAs'. Experimental demonstrations of the FOPA features include gain tuneable across bandwidth over 400 nm [1], a continuous gain bandwidth up to 270 nm [2], [3], noise figure down to 0 dB [4] and gain up to 70 dB [5].…”

Section: Introductionmentioning

confidence: 99%

Fibre Optical Parametric Amplifiers for Communications

Gordienko

Gaur

Bessin

et al. 2023

2023 23rd International Conference on Transparent Optical Networks (ICTON)

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We present our recent achievements with polarisation-insensitive fibre optical parametric amplifiers (PI-FOPAs) for optical communications. We have demonstrated a robust fully automated (black-box) PI-FOPA operation in the C and L bands simultaneously with gain of ~20dB and output power over 23dBm when amplifying polarisation-multiplexed WDM QAM signals and a bursty traffic. Additionally, we have demonstrated a PI-FOPA to amplify WDM signals in the S band and across a continuous bandwidth of 40nm. Finally, we have demonstrated a power budget improvement of a transient-sensitive link by up to 8 dB when employing a PI-FOPA with noise figure of ~6 dB as a drop-in replacement of an EDFA.

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Phase-sensitive amplification of 11 WDM channels across bandwidth of 8 nm in a fibre optic parametric amplifier

Abstract: We experimentally demonstrate phase-sensitive fibre optic parametric amplification with gain >10dB and optical noise figure below 3dB for 11 channels spaced of 100 GHz. We employ all-fibre dispersion management to achieve a wideband phase-matching between signals and their copies.

Cited by 9 publications

References 12 publications

Overcoming the quantum limit of optical amplification in monolithic waveguides

Overcoming the quantum limit of optical amplification in monolithic waveguides

Looped Polarization-Insensitive Fiber Optical Parametric Amplifiers for Broadband High Gain Applications

Fibre Optical Parametric Amplifiers for Communications

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