22 October 2010 The polarization properties analysis on photonic crystal fibers side-pulsed by CO2 laser
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Abstract
We have theoretically investigated the polarization properties of a single-mode photonic crystal fiber (PCF), which is pulsed one-side by CO2 laser resulting in partial air-holes collapse and deformation. The CO2 laser micro-fabrication is a common way in PCF post-processing, which is used widely both in writing fiber gratings on PCFs and making optical components such as PCF polarizers. A series models with different valley depth which is due to the collapsed air-holes have been simulated by using a full-vector finite-element method (FEM) with a perfectly matched layer (PML). The theoretical results show that the deeper valley causes a larger insertion loss, at the same time, leading a larger polarization dependence loss (PDL). This research provides an insight into the side-pulsed PCF as well as a guidance on the experiment of CO2 laser micro-fabrication on PCFs.
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Wenwen Qian, Wenwen Qian, Chun-liu Zhao, Chun-liu Zhao, Xinyong Dong, Xinyong Dong, Juan Kang, Juan Kang, Jiangtao Guo, Jiangtao Guo, Huifeng Wei, Huifeng Wei, } "The polarization properties analysis on photonic crystal fibers side-pulsed by CO2 laser", Proc. SPIE 7847, Optoelectronic Devices and Integration III, 78471G (22 October 2010); doi: 10.1117/12.871654; https://doi.org/10.1117/12.871654
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