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Dispersion and polarization properties of near-rectangle core photonic crystal fibers

Lou Shu-Qin Ren Guo-Bin Yan Feng-Ping Jian Shui-Sheng

Dispersion and polarization properties of near-rectangle core photonic crystal fibers

Lou Shu-Qin, Ren Guo-Bin, Yan Feng-Ping, Jian Shui-Sheng
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  • Abstract views:  3187
  • PDF Downloads:  1024
  • Cited By: 0
Publishing process
  • Received Date:  13 July 2004
  • Accepted Date:  12 August 2004
  • Published Online:  17 March 2005

Dispersion and polarization properties of near-rectangle core photonic crystal fibers

  • 1. 北京交通大学电子信息工程学院,全光网络与现代通信网教育部重点实验室,北京100044

Abstract: Dispersion and polarization properties of near_rectangle core photoric crystal fibers (PCFs) were analyzed with a full vector model. The numerical results show that the modal birefringence of near_rectangle core PCF is at least one order of magnitude higher than the conventional elliptical polarization_maintaining fibers (PMFs). In order to obtain higher birefringence, an efficient way is to increase the relative hole diameter. Zero walk_off point occurs at the longer wavelength than that of convention elliptical PMF. With increasing hole pitch, the walk_off curve and zero walkoff point would shift towards the longer wavelength region. The corresponding wavelength of zero walkoff point is in proportion to the size of the hole pitch. The occurrence of zero walkoff point can efficiently restrain the first_order polarization mode dispersion. Through choosing the suitable structural parameter of near_rectangle core PCF, we can get the more flexible dispersion properties. The approximate 400nm ultra_flatten dispersion was gotten near the wavelength 155μm for a nearrectangle core PCF with Λ=2μm and d/Λ=03 This fiber has a number of potential applications in polarization control, dispersion control and management.

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