Tunable dual-wavelength fiber laser based on a single fiber Bragg grating in a Sagnac loop interferometer

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• 作者：Dae Seung Moon ; Guoyong Sun ; Aoxiang Lin ; Xueming Liu ; Youngjoo Chung
• 关键词：Dual-wavelength fiber laser ; Sagnac loop interferometer ; Fiber Bragg grating
• 刊名：Optics Communications
• 出版年：2008
• 期刊代码：50_00304018
• 类别：ph
• 出版时间：1 May 2008
• 卷：281
• 期：9
• 页码：2513-2516
• 文件大小：239 K

摘要

We propose a simple dual-wavelength Er-doped fiber laser configuration based on a dual-wavelength fiber Bragg grating written on the splice joint between two different fibers for wavelength-selective filter in the Sagnac loop interferometer. The wavelength separation between the adjacent lasing wavelengths is 1.12 nm and the side-mode suppression ratio (SMSR) is over 55 dB. The output power variation is less than 0.8 dB over a two-minute period. Moreover, the lasing wavelength can be effectively tuned using the thermal heating method.