Application of four-wave mixing for estimation of nonlinear parameters in compact ring cavity laser based on Bi-EDF
الموضوعات : Journal of Theoretical and Applied Physics
Sharifeh Shahi
1
(1. Laser and Biophotonics in Biotechnologies Research Center, Isfahan (Khorasgan) branch, Islamic Azad University, Isfahan, Iran 2. Department of Biomedical Engineering, Isfahan (Khorasgan) branch, Islamic Azad University, Isfahan, Iran)
Sasan Soudi
2
(1. Laser and Biophotonics in Biotechnologies Research Center, Isfahan (Khorasgan) branch, Islamic Azad University, Isfahan, Iran 3. Department of Medical Engineering Faculty of Health and Medical Engineering Tehran Medical Sciences)
Yalda Ghorbani
3
(1. Laser and Biophotonics in Biotechnologies Research Center, Isfahan (Khorasgan) branch, Islamic Azad University, Isfahan, Iran 2. Islamic Azad University Majlesi branch/Faculty of electrical and computer engineering, Isfahan, Iran)
Bahareh Khaksar jalali
4
(1. Laser and Biophotonics in Biotechnologies Research Center, Isfahan (Khorasgan) branch, Islamic Azad University, Isfahan, Iran)
Sulaiman Wadi Harun
5
(Department of Electrical Engineering, Faculty of Engineering, University of Malaya 50603 Kuala Lumpur Malaysia)
الکلمات المفتاحية: Bi-EDF, Four-wave mixing, Photonic crystal fiber, Non-linear optics,
ملخص المقالة :
One of the main degradation effects of optical fibres with dense channel width and poor chromatic dispersion on the fiber is four-wave mixing (FWM). Cross talk produced by four-wave mixing in optical fibers limits the efficiency of long-distance wavelength-division multiplexing (WDM) optical communication systems, which can be regulated for non-linearity purposes in optical telecommunication, particularly when channel wavelengths are set near the zero-dispersion wavelength of optical fibers. As a result, a small fiber segment with a high nonlinearity can be used to support the FWM. Using the four-wave mixing method, the experimental set-up of a compact fiber ring laser based on different lengths of nonlinear Bismuth-Erbium doped fiber (Bi-EDF, 181 and 215 cm) is used in this paper. Via the degenerate four-wave mixing effect, these two gain nonlinear media have been successfully used to stabilize a dual-wavelength fiber laser with and without nonlinear photonic crystal fiber (PCF) at room temperature for and n2 estimation of nonlinear parameters and FWM performance of optical fiber. Experiments show that using a high non-linear bismuth-erbium doped fiber (Bi-EDF) in implementing an FWM program for non-linear PCF parameters has specific and unique benefits. Furthermore, the FWM effect can be used for signal amplification, wavelength transfer, phase conjugation, and high-speed optical switching. The proposed configuration's special function is explained by the Bi-EDF and PCF fiber's coupled relationship in FWM scattering.
