Switchable triple-wavelength erbium-doped fiber laser using a single fiber Bragg grating in polarization-maintaining fiber

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• 作者：Zhanyuan Liu ; Yan-ge Liu ; Jiangbing Du ; Shuzhong Yuan ; Xiaoyi Dong
• 关键词：Multiwavelength fiber laser ; Erbium-doped fiber ; Polarization hole burning ; Fiber Bragg grating ; Polarization control
• 刊名：Optics Communications
• 出版年：2007
• 出版时间：1 November 2007
• 年：2007
• 卷：279
• 期：1
• 页码：168-172
• 全文大小：410 K

文摘

A stable and narrow wavelength spacing multiwavelength erbium-doped fiber laser is proposed and demonstrated. The laser can produce simultaneous dual- and triple-wavelength lasing oscillations with a narrow wavelength spacing of less than 0.1 nm via using a single fiber Bragg gratings written in polarization-maintaining (PM) fiber. By adjusting polarization controller, the wavelength spacing of dual-wavelength lasing oscillations can be tuned to as small as 0.032 nm. The maximum amplitude variation for every lasing wavelength is less than 0.5 dB. The room-temperature operation principle is based on the polarization hole burning and deeply saturated effect in an ordinary erbium-doped fiber ring laser (EDFRL). The laser has the advantages of simple all-fiber configuration, low cost, high stability and operating at room temperature.