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According to the nonlinear coupled equation under the joint action of Raman scattering and parametric amplification when the optical pulse propagats in the birefringent fiber, based on Lorentzian model of parallel Raman gain spectrum, the gain spectrum is obtained by combining Raman scattering and parametric amplification when the pump wave polarization direction is along the two orthogonal birefringence axes. The gain spectrum is discussed as a function of input parameters (input power, the group velocity mismatch) in different dispersion regimes. The result shows that the balance between non-linearity and dispersion is destructed by Raman scattering. Stokes and anti-stokes gain spectrum are asymmetric because of Raman effect. The structure of gain spectrum is confirmed when input power is constant. The intensity and width of gain spectrum change with dispersion and nonlinear parameter.
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Keywords:
- Raman effect /
- parametric amplification /
- gain spectrum /
- birefringent fiber
[1] Wu C Q, Fu S N, Dong H, Liu H T, 2002 Acta Phys. Sin. 51 2542 (in Chinese) [吴重庆, 付松年, 董晖, 刘海涛 2002 51 2542]
[2] Liu XY, Zhang FD, Zhang M, 2007 Chin. Phys. 16 1710
[3] Seve E, Dinda P T, Millot G 1996 Phys. Rev. A 54 3519
[4] Shang T 2007 Theoretical study on raman amplifier and optical parameter amplifier based on photonic crystal fiber (Shanghai: Shanghai Jiaotong University)
[5] Lin Q, Agrawal G P 2006 Opt. Lett. 31 3086
[6] Agrawal G P 2001 Nonlinear Fiber Optics Third Edition & Applications of Nonlinear Fiber Optics (Boston: Academic Press)
[7] Trillo S, Wabnitz S 1992 Opt. Soc. Am. B 9 1061
[8] Jia W G, Qiao L R, Wang X Y, Yang J, Zhang J P, Men-Ke Neimule 2012 Acta Phys. Sin. 61 064215 (in Chinese) [贾维国, 乔丽荣, 王旭颖, 杨军, 张俊萍, 门克内木乐 2012 61 064215]
[9] Wang X, Jia W G, Yin J Q, Tonglaga, Menkeneimule, Yang J, Zhang J P 2011 Acta Opt. Sin. 31 606001 (in Chinese) [王旭颖, 贾维国, 尹建全, 通拉嘎, 门克内木乐, 杨军, 张俊萍 2011 光学学报 31 606001]
[10] Park H G, Park J D, Lee S S 1987 Appl. Opt. 26 2974
[11] Chee J K, Liu J M 1989 IEEE J. Quantum Electron. 14 820
[12] Rothenberg J E 1990 Phys. Rev. A 42 682
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[1] Wu C Q, Fu S N, Dong H, Liu H T, 2002 Acta Phys. Sin. 51 2542 (in Chinese) [吴重庆, 付松年, 董晖, 刘海涛 2002 51 2542]
[2] Liu XY, Zhang FD, Zhang M, 2007 Chin. Phys. 16 1710
[3] Seve E, Dinda P T, Millot G 1996 Phys. Rev. A 54 3519
[4] Shang T 2007 Theoretical study on raman amplifier and optical parameter amplifier based on photonic crystal fiber (Shanghai: Shanghai Jiaotong University)
[5] Lin Q, Agrawal G P 2006 Opt. Lett. 31 3086
[6] Agrawal G P 2001 Nonlinear Fiber Optics Third Edition & Applications of Nonlinear Fiber Optics (Boston: Academic Press)
[7] Trillo S, Wabnitz S 1992 Opt. Soc. Am. B 9 1061
[8] Jia W G, Qiao L R, Wang X Y, Yang J, Zhang J P, Men-Ke Neimule 2012 Acta Phys. Sin. 61 064215 (in Chinese) [贾维国, 乔丽荣, 王旭颖, 杨军, 张俊萍, 门克内木乐 2012 61 064215]
[9] Wang X, Jia W G, Yin J Q, Tonglaga, Menkeneimule, Yang J, Zhang J P 2011 Acta Opt. Sin. 31 606001 (in Chinese) [王旭颖, 贾维国, 尹建全, 通拉嘎, 门克内木乐, 杨军, 张俊萍 2011 光学学报 31 606001]
[10] Park H G, Park J D, Lee S S 1987 Appl. Opt. 26 2974
[11] Chee J K, Liu J M 1989 IEEE J. Quantum Electron. 14 820
[12] Rothenberg J E 1990 Phys. Rev. A 42 682
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