Wide wavelength selectable all-fiber thulium doped fiber laser between 1925 nm and 2200 nm

Jianfeng Li, Zhongyuan Sun, Hongyu Luo, Zhijun Yan, Kaiming Zhou, Yong Liu, Lin Zhang

Research output: Contribution to journalArticlepeer-review


We demonstrate an all-fiber Tm3+-doped silica fiber laser operating at a wide selectable wavelength range by using different fiber Bragg gratings (FBGs) as wavelength selection elements. With a specifically designed high reflective (HR) FBG and the fiber end as an output coupler, the lasing in the range from 1975 nm to 2150 nm with slope efficiency of >30% can be achieved. By employing a low reflective (LR) FBG as the output coupler, the obtainable wavelengths were extended to the range between 1925 nm and 2200 nm which is the reported longest wavelength from the Tm3+-doped silica fiber lasers. Furthermore, by employing a FBG array in the laser cavity and inducing bend loss between adjacent FBGs in the array, six switchable lasing wavelengths were achieved. © 2014 Optical Society of America.

Original languageEnglish
Pages (from-to)5387-5399
Number of pages13
JournalOptics Express
Issue number5
Early online date28 Feb 2014
Publication statusPublished - 10 Mar 2014

Bibliographical note

© 2014 Optical Society of America.
This paper was published in Optics express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-5-5387. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


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