A dual-wavelength erbium-doped fiber laser with widely tunable wavelength spacing

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2014,（2）
• 页码范围: 100-102
• 页数: 3页
• 语种: 英文
• DOI: 10.1007/s11801-014-3231-7

摘要

A stable dual-wavelength erbium-doped fiber laser (EDFL) with tunable wavelength spacing and equalized output power is proposed and experimentally demonstrated.The fiber laser uses two fiber Fabry-Perot tunable filters (FFPTFs) as the wavelength filter.The main cavity is divided into two sub-cavities with imbalance cavity losses through a 30/70 optical coupler.The tunable wavelength spacing can be achieved by changing the center wavelength of the filters and the equalized dual-wavelength output power can be achieved by properly controlling the variable optical attenuator (VOA) inserted in the lower-loss cavity.