| Wei-hua Zhang,Zheng-rong Tong,Ye Cao.A dual-wavelength erbium-doped fiber laser with widely tunable wavelength spacing[J].Optoelectronics Letters,2014,10(2):100-102 |
| A dual-wavelength erbium-doped fiber laser with widely tunable wavelength spacing |
| Author Name | Affiliation | E-mail | | Wei-hua Zhang | Key Laboratory of Film Electronics and Communication Devices, School of Electronic Information Engineering, Tianjin University of Technology, Tianjin, 300384, China | nmgzwh@163.com | | Zheng-rong Tong | Key Laboratory of Film Electronics and Communication Devices, School of Electronic Information Engineering, Tianjin University of Technology, Tianjin, 300384, China | | | Ye Cao | Key Laboratory of Film Electronics and Communication Devices, School of Electronic Information Engineering, Tianjin University of Technology, Tianjin, 300384, China | |
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| Abstract: |
| 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. |
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| This work has been supported by the Tianjin Natural Science Foundation （Nos. 13JCQNJC01800 and 11JCYBJC00100）. |
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