Numerical simulation of dispersion properties in CCl4-infiltrated square photonic crystal fibers

Hoang Trong Duc * , Siu Lol and Nguyen Thi Thuy

* Corresponding author: (hoangtrongduc@hueuni.edu.vn)

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Received: Apr 27, 2024
Revised: Jun 21, 2024
Accepted: Jun 24, 2024
Published: Apr 20, 2026
Title: Numerical simulation of dispersion properties in CCl4-infiltrated square photonic crystal fibers
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How to Cite
Duc, H. T., Lol, S. ., & Thuy, N. T. (2026). Numerical simulation of dispersion properties in CCl4-infiltrated square photonic crystal fibers. Journal of Science and Education, 66(02), 80-87. Retrieved from https://tckhgd.dhsphue.edu.vn/index.php/jse/article/view/111
Issue
Vol. 66 No. 02 (2026): Journal of Science and Education: Natural Science - Technology
Section
Journal of Science and Education: Natural Science - Technology

Abstract

The lattice defects, including differences in air hole size and distance between air holes, have contributed significantly to optimizing the dispersion properties of square lattice photonic crystal fibers with the infiltration of carbon tetrachloride. Through numerical simulation, we have investigated the effective refractive index and dispersion according to the change of lattice parameters. The ultraflat, all-normal dispersion with ΔD = ±0.98 ps/nm.km in the wavelength region of 1.394 μm - 1.734 μm is achieved. Four optical fibers with flat dispersion and small value at the pump wavelengths are proposed as low-power laser sources for studies on supercontinuum generation.
Keywords: Photonic crystal fibers, Carbon tetrachloride, Ultraflat all-normal dispersion, Supercontinuum generation

Tóm tắt

Các khuyết tật mạng tinh thể, bao gồm sự khác biệt về kích thước lỗ khí và khoảng cách giữa các lỗ khí, đã góp phần đáng kể vào việc tối ưu đặc tính tán sắc của sợi tinh thể quang tử mạng vuông được thẩm thấu carbon tetrachloride. Thông qua mô phỏng số, chúng tôi đã khảo sát sự phụ thuộc của chiết suất hiệu dụng và tán sắc theo sự thay đổi của các tham số cấu trúc. Kết quả cho thấy có thể đạt được đặc tính tán sắc hoàn toàn bình thường siêu phẳng với dao động ΔD = ±0,98 ps/nm·km trong dải bước sóng từ 1,394 μm đến 1,734 μm. Bốn sợi quang có cấu hình tán sắc phẳng, giá trị nhỏ tại các bước sóng bơm đã được đề xuất như những nguồn laser công suất thấp cho các nghiên cứu về tạo phổ siêu liên tục.
Từ khóa: Sợi tinh thể quang tử, Carbon tetrachloride, Tán sắc hoàn toàn bình thường siêu phẳng, Phát siêu liên tục

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