兹布兰
光学
激光器
材料科学
飞秒
超短脉冲
光纤激光器
红外线的
光电子学
孤子
频率梳
物理
非线性系统
量子力学
作者
Yifan Cui,Hao Huang,Yu Bai,Weizhi Du,Mingshu Chen,Bohan Zhou,Igor Jovanovic,Almantas Galvanauskas
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-02-27
卷期号:48 (7): 1890-1890
被引量:3
摘要
We present an ultrafast long-wave infrared (LWIR) source driven by a mid-infrared fluoride fiber laser. It is based on a mode-locked Er:ZBLAN fiber oscillator and a nonlinear amplifier operating at 48 MHz. The amplified soliton pulses at ∼2.9 µm are shifted to ∼4 µm via the soliton self-frequency shifting process in an InF3 fiber. LWIR pulses with an average power of 1.25-mW centered at 11 µm with a spectral bandwidth of ∼1.3 µm are produced through difference-frequency generation (DFG) of the amplified soliton and its frequency-shifted replica in a ZnGeP2 crystal. Soliton-effect fluoride fiber sources operating in the mid-infrared for driving DFG conversion to LWIR enable higher pulse energies than with near-infrared sources, while maintaining relative simplicity and compactness, relevant for spectroscopy and other applications in LWIR.
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