Novel design of broadband dispersion compensating photonic crystal fiber with all solid structure and low index difference

Wang, Wei; Qu, Yuwei; Zhang, Chunlan; Zuo, Yu-Ting; Han, Ying; Wang, Chao; Qi, Yuefeng; Hou, Lantian

doi:10.1016/j.ijleo.2017.10.160

Cited by 11 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e eigenvector {H} and the eigenvalue n 2 eff provide, respectively, the full vector magnetic field distribution on the cross section of PCF and the effective index of the mode. e total dispersion D (λ) of the fiber consists of two parts: the material dispersion D m (λ) and the waveguide dispersion D w (λ); that is [19],…”

Section: Fundamental Theorymentioning

confidence: 99%

An All-Solid Dispersion-Compensating Photonic Crystal Fiber Based on Mode Coupling Mechanism in Dual-Concentric Core

Liu

Zhang

2020

International Journal of Optics

Self Cite

View full text Add to dashboard Cite

An all-solid dispersion-compensating photonic crystal fiber based on mode coupling mechanism in dual-concentric core has been proposed. The mode coupling characteristics, dispersion, confinement loss of the fiber, and the influence on dispersion of some structure parameters are simulated by full-vector finite element method. By using the relationship between phase matching wavelengths and coupling strength with the change of fiber microstructure parameters, an all-solid dual-concentric-core dispersion-compensating photonic crystal fiber is presented. The structure parameters on dispersion characteristic are investigated. The results demonstrate that the proposed fiber has a large negative dispersion value 8465 ps/(nm·km) at 1550 nm. The effective mode area and the splicing loss to the standard single mode fiber are 12.8 μm2 and 1.89 dB at 1550 nm, respectively. At 1550 nm, the confinement loss is less than 1 × 10−3 dB/km and the bending loss with 2 cm bending diameter is less than 1 × 10−2 dB/km.

show abstract

Section: Fundamental Theorymentioning

confidence: 99%

An All-Solid Dispersion-Compensating Photonic Crystal Fiber Based on Mode Coupling Mechanism in Dual-Concentric Core

Liu

Zhang

2020

International Journal of Optics

Self Cite

View full text Add to dashboard Cite

show abstract

“…In 2018, Wang et al proposed an all-solid DCC-MSF with BDC covering S + C bands. Its compensating multiple was 15.43 times standard SMF, and the residual dispersion value varied within ±0.15 ps/(nm•km) [14]. Although the variation range of residual dispersion was small, the compensation multiples and bandwidth were slightly insufficient.…”

Section: Introductionmentioning

confidence: 97%

Design of All-Solid Dual-Concentric-Core Microstructure Fiber for Ultra-Broadband Dispersion Compensation

Wang

Zhang

et al. 2019

Applied Sciences

Self Cite

View full text Add to dashboard Cite

In this paper, the all-solid dual-concentric-core microstructure fiber (MSF) with ultra-broadband dispersion compensation characteristics is designed. The effects of microstructure fiber structure parameters on dispersion, phase-matching wavelength, and kappa value are analyzed by the multi-pole method and mode coupling theory. The average dispersion compensation multiple is 18.45, that is, 1 km long dispersion compensated MSF can compensate for the cumulative dispersion of standard single-mode fiber of 18.45 km in the wavelength range of 1385~1575 nm by optimizing MSF parameters. The change range of residual dispersion is within ±0.72 ps/(nm·km), and the splicing loss with standard single-mode fiber is controlled below 5 dB within the compensation bandwidth of 190 nm. Compared with the air hole-quartz structure dual-concentric-core microstructure fiber, the designed fiber reduces the difficulty of fiber drawing, is easy to splice with standard single-mode fiber, and has wider compensation bandwidth as well as larger compensation multiple than the existing microstructure fiber. This lays a solid foundation for the optimization of dense wavelength division multiplexing networks and the construction of all-optical networks.

show abstract

“…adjusting the refractive index between the inner and outer cores filled with different materials or by changing the diameter of air holes in a certain layer to form dual-core structure, the dual-core PCF can better solve the problem of dispersion compensation over the broad wavebands. Wang et al proposed an all-solid dual concentric core DCPCF [6] which can compensate 15.43 times its length of SMF28 with small residual dispersion in the range of ±0.15 ps/(nm•km) over S+C bands. However, it is difficult to fabricate because of this structure with a Ge-doped fiber core and a F-doped cladding.…”

mentioning

confidence: 99%

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

et al. 2023

IEEE Photonics J.

View full text Add to dashboard Cite

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).

show abstract

Novel design of broadband dispersion compensating photonic crystal fiber with all solid structure and low index difference

Cited by 11 publications

References 24 publications

An All-Solid Dispersion-Compensating Photonic Crystal Fiber Based on Mode Coupling Mechanism in Dual-Concentric Core

An All-Solid Dispersion-Compensating Photonic Crystal Fiber Based on Mode Coupling Mechanism in Dual-Concentric Core

Design of All-Solid Dual-Concentric-Core Microstructure Fiber for Ultra-Broadband Dispersion Compensation

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

Contact Info

Product

Resources

About