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Wavelength-number-tunable multi-wavelength SOA fiber laser based on NPR effect

机译：基于NPR效应的波长数可调多波长SOA光纤激光

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摘要

A wavelength-number-tunable multi-wavelength SOA fiber laser incorporating a double pass Mach-Zehnder interferometer (MZI) is experimentally demonstrated in this paper. Due to the nonlinear polarization rotation (NPR) effect of SOA, the intensity-dependent loss (IDL) is induced by the combination consisting of SOA and polarization devices to achieve stable multiwavelength output with ultra-narrow wavelength spacing. In addition, the degree of IDL can be controlled by adjusting PCs for the purpose of tuning the number of wavelengths. Stable multiwavelength output with power equality have been achieved at room temperature, which have no obvious power fluctuation. The wavelength spacing is ultra-narrow, which is as small as 0.081 nm, and the number of lasing lines is tuned from 168 to 250. However, due to the high noise figure of SOA, the optical signalto-noise ratios (OSNR) is less than 8.85 dB.
机译：在本文实验证明了包含双通马赫 - Zehnder干涉仪（MZI）的波长数可调多波长SOA光纤激光器。由于SOA的非线性偏振旋转（NPR）效应，由由SOA和偏振装置组成的组合引起强度依赖性损耗（IDL），以实现具有超窄波长间距的稳定多波长输出。另外，可以通过调整PC以调整波长数的目的来控制IDL的程度。在室温下实现了具有功率平等的稳定多波长输出，其具有明显的功率波动。波长间距是超窄的，这与0.081nm一样小，并且激光线的数量从168到250调谐。然而，由于SOA的高噪声系数，光学信令噪声比（OSNR）是小于8.85 dB。

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