Low-Noise Integrated Phase-Sensitive Waveguide Parametric Amplifiers

Karlsson, Magnus; Andrekson, P.A.

doi:10.1109/jlt.2021.3119423

Cited by 15 publications

(1 citation statement)

References 45 publications

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“…Frontiers in Photonics frontiersin.org and an approximate one in the lossy scenario resulting in the appearance of the effective length z eff (see (Alem et al, 2015;Ribeiro and Perego, 2022a;Zhao et al, 2022) for various applications of this approximation in the context of parametric amplification and modulation instability). The solution is formally E ± (z, Ω) e…”

Section: Methodsmentioning

confidence: 99%

Parametric amplification in coupled nonlinear waveguides: The role of coupling dispersion

2023

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We present the theory of parametric amplification in coupled nonlinear waveguides considering the frequency dependency of the coupling strength. We show that coupling dispersion can indeed compensate for the uncoupled individual waveguides dispersion enabling a substantial tailoring of the gain spectrum. Our theory describes both phase-sensitive and phase-insensitive operational modes, it can be straightforwardly generalized to include arbitrary higher-order waveguide and coupling dispersion and its predictions agree very well with numerical simulations both in the presence and in the absence of waveguide losses. It provides a tool for the design of novel versatile parametric amplifiers based both on coupled integrated waveguides and dual-core fibers too.

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Section: Methodsmentioning

confidence: 99%

Parametric amplification in coupled nonlinear waveguides: The role of coupling dispersion

2023

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Applications of nonlinear four-wave mixing in optical communication

Andrekson

2023

Optik

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Optical parametric wideband frequency modulation

et al. 2022

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Various types of photonic applications, such as sensing and communication, require the generation of wideband optical frequency-modulated (FM) signals. However, generating a wideband FM signal beyond the electrical bandwidth limitation of optical modulators is difficult. Here, we propose a method to increase the bandwidths of optical FM signals by using the cascaded four-wave-mixing (FWM) process and show its potential in two applications. We first demonstrate elevenfold bandwidth expansion of frequency-modulated continuous-wave (FMCW) signals (from 5 GHz to 55 GHz), beyond the optical modulator bandwidth. Next, we demonstrate signal-to-noise ratio (SNR) enhancement for analog communication. The SNR of an analog signal can be increased by approximately 12.8 dB using the proposed method. These results show the potential of the proposed method for sensing and communication applications. In addition, the proposed concept opens new possibilities in parametric FWM applications.

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Low-Noise Integrated Phase-Sensitive Waveguide Parametric Amplifiers

Cited by 15 publications

References 45 publications

Parametric amplification in coupled nonlinear waveguides: The role of coupling dispersion

Parametric amplification in coupled nonlinear waveguides: The role of coupling dispersion

Applications of nonlinear four-wave mixing in optical communication

Optical parametric wideband frequency modulation

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