Yizhe Zhang, Xiaojie Guo. Design of Fiber and Crosstalk Characteristics for Few-Mode Optical Parametric Amplification[J]. Laser & Optoelectronics Progress, 2022, 59(11): 1119001
- Laser & Optoelectronics Progress
- Vol. 59, Issue 11, 1119001 (2022)
Fig. 1. Structure of the fiber. (a) Structure of the elliptical core graded-index fiber; (b) refractive index distribution on the ellipse
Fig. 2. Group velocity dispersion and relative group delay for different transmission modes. (a) Group velocity dispersion; (b) relative group delay
Fig. 3. Variation curve of phase mismatch with wavelength during MI and PC process
Fig. 4. Gain distribution for different modes. (a) Results obtained from the numerical solution; (b) result obtained from the analytical solution
Fig. 5. Crosstalk curves obtained from the numerical solution and semi-analytical solution. (a) Effect of LP01 mode on other modes; (b) effect of LP02 mode on other modes; (c) effect of LP11b mode on other modes; (d) effect of LP11a mode on other modes; (e) effect of LP21 mode on other modes
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Table 1. Non-linear coupling coefficient of few-mode fiber
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