Mode-locked erbium-doped fiber lasers as source for optical sensor networks over C and L bands

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• 作者：Cristian Lavieja ; Sebasti¨¢n Jarabo ; Mercedes Mar¨ªn-Do?¨¢gueda ; ¨ª?igo J. Sola
• 关键词：Bragg gratings ; Erbium-doped fiber amplifier ; Laser mode locking ; Optical fiber networks
• 刊名：Optical Fiber Technology
• 出版年：2013
• 出版时间：October, 2013
• 年：2013
• 卷：19
• 期：5
• 页码：476-481
• 全文大小：910 K

文摘

The performance of mode-locked erbium-doped fiber lasers in optical sensor networks is analyzed and compared with the results obtained by using commercial erbium-doped fiber amplifiers as source. Passive mode-locked lasers developed are based on nonlinear polarization rotation and they have been built using the same erbium-doped fiber amplifiers. To simulate a real sensor network, a tree structure with four fiber Bragg gratings was built employing 50/50 couplers. The mode-locked laser developed offers a reasonably good behavior at a very wide spectral range (83 nm, approximately) over C and L bands. The signal to noise ratio and the peak power are greatly improved with regard to the values obtained employing commercial amplifiers as source.