Two-Section Fiber Optic Raman Polarizer

Article English OPEN
Sergeyev, Sergey ; Popov, Sergei (2012)
  • Journal: IEEE JOURNAL OF QUANTUM ELECTRONICS (issn: 0018-9197)
  • Related identifiers: doi: 10.1109/JQE.2011.2177073

We report on a theoretical study of polarization impairments in periodically spun fiber Raman amplifiers. Based on the Stochastic Generator approach we have derived averaged equations to calculate polarization dependent gain and mean-square gain fluctuations. We show that periodically spun fiber can work as a Raman polarizer but it suffers from increased polarization dependent gain and gain fluctuations. Unlike this, application of a depolarizer can result in suppression of polarization dependent gain and gain fluctuations. We demonstrate that it is possible to design a new fiber Raman polarizer by combining a short fiber without spin and properly chosen parameters and a long periodically spun fiber. This polarizer provides almost the same polarization pulling for all input signal states of polarization and so has very small polarization dependent gain.
  • References (15)
    15 references, page 1 of 2

    [1] P. K. A. Wai, C. R. Menyuk, “Polarization mode dispersion, decorrelation and diffusion in optical fibers with randomly varying birefringence,” J. Lightwave Technol., vol. 14, 148-157 (1996).

    [2] D. A. Nolan, X. Chen, M.-J. Li, “Fibers with low polarization-mode dispersion, “ J. Lightwave Technol., vol. 22, 1066-1077 (2004).

    [3] A. Galtarossa, L. Palmieri, A. Pizzinat, B. S. Marks, and C. R. Menyuk, “An analytical formula for the mean differential group delay of randomly-birefringent spun fibers,” J. Lightwave Technol. 21, 1635- 1643 (2003).

    [4] R. H. Stolen, ”Polarization effects in fiber Raman and Brillouin Lasers”, IEEE J. Quant. Electron., vol. 15, 1157-1160 (1979).

    [5] Q. Lin, G. P. Agrawal, “Vector theory of stimulated Raman scattering and its application to fiber-based Raman amplifiers, “ J. Opt. Soc. Am. B, vol. 20, pp. 1616-1631 (2003).

    [6] S. Sergeyev, S. Popov, and A. T. Friberg, “Modeling polarizationdependent gain in fiber Raman amplifiers with randomly varying birefringence,” Opt. Comm., vol. 262, 114-119 (2006).

    [7] S. Sergeyev, S. Popov, A. T. Friberg, “Spun fiber Raman amplifiers with reduced polarization impairments”, Opt. Express, vol. 16, 14380- 14389 (2008).

    [8] S. Sergeyev, S. Popov, A. T. Friberg, “Virtually Isotropic Transmission Media With Fiber Raman Amplifier, IEEE J. Quantum Electron.,” vol. 46, 1492-1497 (2010).

    [9] M. Martinelli, M. Cirigliano, M. Ferrario, L. Marazzi, and P. Martelli, “Evidence of Raman-induced polarization pulling,” Opt. Express 17, 947-955 (2009).

    [10] V. V. Kozlov, J. Nuño, J. D. Ania-Castañón, and S. Wabnitz, “Theory of fiber optic Raman polarizers,” Opt. Lett. 35, 3970-3972 (2010).

  • Metrics
    No metrics available
Share - Bookmark