High-power all-fiber mid-infrared supercontinuum generation pumped by noise-like pulses - Details

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Abstract：

A　high-power　all-fiber　mid-infrared　(mid-IR)　supercontinuum　(SC)　generation　in　a　single-mode　ZBLAN　fiber　pumped　by　amplified　noise-like　pulses　is　reported.　The　mid-IR　SC　system　is　a　2　μm　master　oscillator　power　amplifier　(MOPA)　construction　including　a　seed　source　and　two-stage　single-mode　thulium-doped　fiber　amplifier　(TDFA)　followed　by　a　single-mode　ZBLAN　fiber.　A　noise-like　pulse　fiber　oscillator　with　wavepacket　width　of　1.4　ns　and　repetition　rate　of　3.36　MHz　at　1966　nm　is　used　as　a　seed　source　of　mid-IR　SC　system.　In　the　last　stage　TDFA,　a　SC　covering　from　1.9　to　2.4　μm　with　maximum　output　power　of　28.5　W　is　generated.　Then,　the　output　SC　of　TDFA　is　injected　into　a　10　m　single-mode　ZBLAN　fiber　for　further　spectrum　broadening.　At　last,　a　mid-IR　SC　covering　from　1.9　to　3.62　μm　with　the　maximum　output　power　of　14.3　W　is　generated.　©,　2015,　Science　Press.　All　right　reserved.

Keyword：

Optical pumping Supercontinuum generation Optical phase conjugation Lasers Fiber lasers Fiber amplifiers Power amplifiers Optical parametric oscillators Pulse repetition rate Glass fibers Infrared devices

Author Community：

[ 1 ] [Liu, Kun]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Shi, Hongxing]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Liu, Jiang]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Tan, Fangzhou]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Zhou, Guanrui]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Wang, Pu]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China