Numerical study on dispersion compensating property in photonic crystal fibers

Li, Shuguang; Liu, Xiaodong; Hou, Lantian

doi:10.7498/aps.53.1880

Cited by 35 publications

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“…The dispersion and the dispersion slope change with the wavelength. In order to ensure that dispersion and dispersion slope can be compensated simultaneously in the broadband range, the effective compensated dispersion D e is usually used to evaluate Moreover, the kappa value [26], [27], which indicates the ability to compensate for both dispersion and dispersion slope, should also be approximated with SMF28 at 1.55 μm, and it is given by the formula (5):…”

Section: A Design Of Dc-dcpcfmentioning

confidence: 99%

Inverse Design of Broadband Dispersion Compensation Fiber Based on Deep Learning and Differential Evolution Algorithm

et al. 2023

IEEE Photonics J.

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A Ge-doped dual-core dispersion compensation photonic crystal fiber (DC-DCPCF) is proposed. The small diameters of two layers' air holes make DC-DCPCF form a dual-core structure, which is conducive to broadband dispersion compensation. Low Ge-doped silica as the only background material reduces the preparation difficulty and cost. It is inversely designed by using artificial neural network (ANN) combined with differential evolution algorithm (DE) to obtain target dispersion compensation. ANN replaces the finite element method to accomplish fast forward prediction of DC-DCPCF properties. DE solves the single solution problem of single or cascade network that makes it flexible and reproducible. The results demonstrate that the designed DC-DCPCF can not only compensate 45 and 25 times its length of Corning single-mode fiber 28 (SMF28) in S+C+L+U bands and E+S+C+L+U bands respectively, but also accurately compensate the residual dispersion with effective dispersion compensation being only +0.005∼+0.842ps/(nm•km) and −0.03∼+1.31ps/(nm•km), respectively. In addition, the kappa values of DCP-PCF are well matched with SMF28 in the broadband wavelength range. It takes only about 10 seconds to complete the inverse design of the target DC-DCPCF. It provides a design method for custom DC-DCPCF and an efficient inverse design solution for photonic automation in fiber optical communication systems. Index Terms-Deep learning, differential evolution algorithm, dual-core dispersion compensation fiber, enter keywords or phrases in alphabetical order, inverse design, photonic crystal fiber. I. INTRODUCTIONI N MODERN optical fiber communication systems, especially in long-range transmission systems such as dense wavelength division multiplexing (DWDM), dispersion compensation is of crucial importance [1], [2], [3]. Since the conventional single mode fiber has dispersion accumulation at each wavelength in the optical fiber transmission link, it is necessary to compensate not only the dispersion but also the dispersion slope [4], [5]. In consequence, some designs of dual-core dispersion compensation photonic crystal fiber (DC-DCPCF).

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Section: A Design Of Dc-dcpcfmentioning

confidence: 99%

Inverse Design of Broadband Dispersion Compensation Fiber Based on Deep Learning and Differential Evolution Algorithm

et al. 2023

IEEE Photonics J.

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Ultra-high negative dispersion and nonlinearity based single mode photonic crystal fiber: design and analysis

Islam

Ahmed

Paul

et al. 2018

J Opt

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Slope matched highly birefringent hybrid dispersion compensating fiber over telecommunication bands with low confinement loss

Halder

2020

J Opt

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This article reveals a best possible design for hybrid dispersion compensating fiber (HyDCF) with high birefringence established on modified broadband compensating structure through S, C and L telecommunication bands. The simulation outcome exhibits relatively higher birefringence of 3.76×10 -2 at wavelength of 1550 nm. The suggested fiber also has dispersion compensation characteristics in an inclusive series of wavelengths which covers 1400-1625 nm. The reported design can achieve dispersion quantity of -606 ps/ (nm.km) at 1550 nm effective wavelength. The reported fiber design matches the relative dispersion slope (RDS) 0.003694 nm -1 similar to single mode fiber at 1550 nm operating wavelength. This fiber demonstrates negatively flattened effective dispersion of -2.703 ± 0.734 ps/ (nm.km) within 180 nm flat band ranging from 1460-1640 nm wavelength. It is also convenient to optical high bit rate communication systems. The low confinement loss is found 3.756×10 -10 dB/m at the operating wavelength. This design also achieves highly nonlinear coefficient of 50.34 W -1 km -1 . In some cases, it can also be used in sensing applications.

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Numerical study on dispersion compensating property in photonic crystal fibers

Cited by 35 publications

References 0 publications

Inverse Design of Broadband Dispersion Compensation Fiber Based on Deep Learning and Differential Evolution Algorithm

Inverse Design of Broadband Dispersion Compensation Fiber Based on Deep Learning and Differential Evolution Algorithm

Ultra-high negative dispersion and nonlinearity based single mode photonic crystal fiber: design and analysis

Slope matched highly birefringent hybrid dispersion compensating fiber over telecommunication bands with low confinement loss

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