Thulium-doped all-fiber broadband superfluorescent source at 2 μm wavelength - Details

Author：

Liu, Jiang (Liu, Jiang.) | Wang, Pu (Wang, Pu.) (Scholars：王璞)

Indexed by：

EI Scopus PKU CSCD

Abstract：

A　high　power　2.0　μm　thulium-doped　broadband　amplified　spontaneous　emission　(ASE)　source　is　reported　by　using　an　all-fiber　master　oscillator　power-amplifer　(MOPA)　configuration.　The　ASE　seed　source　produces　average　output　power　of　about　220　mW　by　using　a　segment　of　thulium-doped　double-clad　fiber　pumped　by　fiber-pigtailed　multimode　diodes　at　790　nm.　The　center　wavelength　and　the　3　dB　bandwidth　are　1952　nm　and　40　nm,　respectively.　A　thulium-doped　all-fiber　amplifier　is　used　to　boost　average　output　power　to　2.6　W　with　a　slope　efficiency　of　46%　with　respect　to　the　launched　pump　power.　The　emission　spans　the　wavelength　range　from　1900　nm　to　2100　nm　with　a　3　dB　bandwidth　of　33　nm,　and　the　maximum　output　power　of　the　ASE　fiber　amplifier　is　currently　limited　by　available　pump　power.

Keyword：

Fiber amplifiers Bandwidth Thulium Fiber optics Superradiance Fibers

Author Community：

[ 1 ] [Liu, Jiang]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Wang, Pu]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

Reprint Author's Address：

Email：

wangpuemail@bjut.edu.cn

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