Laser & Optoelectronics Progress, Volume. 59, Issue 3, 0306003(2022)
Research on Properties of Highly Nonlinear Bi2O3-GeO2-Ga2O3 Photonic Crystal Fiber
Highly nonlinear photonic crystal fiber has the characteristics of small core and large refractive index contrast. In this work, the photonic crystal fiber (PCF) with a special structure based on Bi2O3-GeO2-Ga2O3 core glass material was designed. Using full-vector finite element method while the perfect matched layer boundary condition, the birefringence coefficients of the PCF at the wavelengths of 1.55 μm and 1.80 μm are 2.89×10-2 and 3.28×10-2, respectively. The dispersion curve shows, when the ellipticity of the inner cladding elliptical air hole is 0.6, the photonic crystal fiber with structural parameters M=d/Λ of 0.5 and 0.6 has two zero dispersion points, indicating it has negative dispersion characteristics. The limiting losses of X polarization and Y polarization at 1.55 μm are 3.8784×10-5?4.5739×10-5 dB·km-1 and 3.5203×10-5?4.2147×10-5 dB?km-1, respectively. This work provides reference for nonlinear optical fiber fields such as optical communication and microstructure optical fiber sensor.
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Fang Tan, Pengfei Xu, Dechun Zhou, Qiang Yang, Lili Wang, Xiangyang Song. Research on Properties of Highly Nonlinear Bi2O3-GeO2-Ga2O3 Photonic Crystal Fiber[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0306003
Category: Fiber Optics and Optical Communications
Received: Mar. 8, 2021
Accepted: Apr. 22, 2021
Published Online: Jan. 24, 2022
The Author Email: Zhou Dechun (paper_paper_2017@126.com)