Two-color fiber amplifier for short-pulse, mid-infrared generation

2008 ◽  
Vol 33 (10) ◽  
pp. 1065 ◽  
Author(s):  
R. Romero-Alvarez ◽  
R. Pettus ◽  
Z. Wu ◽  
D. Strickland
Keyword(s):  
Short Pulse ◽  
Fiber Amplifier ◽  
Mid Infrared

High-spectral-flatness mid-infrared supercontinuum generated from a Tm-doped fiber amplifier

2012 ◽  
Vol 51 (7) ◽  
pp. 834 ◽  
Author(s):  
Jihong Geng ◽  
Qing Wang ◽  
Shibin Jiang
Keyword(s):  
Fiber Amplifier ◽  
Mid Infrared

A NUMERICAL MODEL OF THE SPECTRAL PROPERTIES OF SHORT PULSE DISTRIBUTED ER3+-DOPED FIBER AMPLIFIER

1995 ◽  
Vol 04 (02) ◽  
pp. 511-526
Author(s):  
V. STOEV ◽  
T. MIRTCHEV
Keyword(s):  
Numerical Model ◽  
Pulse Duration ◽  
Spectral Properties ◽  
Dopant Concentration ◽  
Short Pulse ◽  
Input Pulse ◽  
Fiber Amplifier ◽  
Numerical Results ◽  
Spectral Features ◽  
Spectral Performance

We model the spectral performance of a short pulse, distributed Er 3+-doped fiber amplifier. Extensive numerical results illustrating how these spectral features depend on the input pulse duration, pumping configuration and dopant concentration are presented.

Peak power tunable mid-infrared oscillator pumped by a high power picosecond pulsed fiber amplifier with bunch output

Laser Physics ◽  
2016 ◽  
Vol 26 (7) ◽  
pp. 075101 ◽  
Author(s):  
Kaihua Wei ◽  
Yan Guo ◽  
Xiaomin Lai ◽  
Shanhui Fan
Keyword(s):  
High Power ◽  
Peak Power ◽  
Fiber Amplifier ◽  
Mid Infrared

scholarly journals Investigation of Mid-Infrared Broadband Second-Harmonic Generation in Non-Oxide Nonlinear Optic Crystals

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 921
Author(s):  
Ilhwan Kim ◽  
Donghwa Lee ◽  
Kwang Jo Lee
Keyword(s):  
Second Harmonic Generation ◽  
Nonlinear Optic ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Short Pulse ◽  
Optical Signal ◽  
Fundamental Wave ◽  
Molecular Fingerprint ◽  
Mid Infrared ◽  
Wide Range

The mid-infrared (mid-IR) continuum generation based on broadband second harmonic generation (SHG) (or difference frequency generation) is of great interest in a wide range of applications such as free space communications, environmental monitoring, thermal imaging, high-sensitivity metrology, gas sensing, and molecular fingerprint spectroscopy. The second-order nonlinear optic (NLO) crystals have been spotlighted as a material platform for converting the wavelengths of existing lasers into the mid-IR spectral region or for realizing tunable lasers. In particular, the spectral coverage could be extended to ~19 µm with non-oxide NLO crystals. In this paper, we theoretically and numerically investigated the broadband SHG properties of non-oxide mid-IR crystals in three categories: chalcopyrite semiconductors, defect chalcopyrite, and orthorhombic ternary chalcogenides. The technique is based on group velocity matching between interacting waves in addition to birefringent phase matching. We will describe broadband SHG characteristics in terms of beam propagation directions, spectral positions of resonance, effective nonlinearities, spatial walk-offs between interacting beams, and spectral bandwidths. The results will show that the spectral bandwidths of the fundamental wave allowed for broadband SHG to reach several hundreds of nm. The corresponding SH spectral range spans from 1758.58 to 4737.18 nm in the non-oxide crystals considered in this study. Such broadband SHG using short pulse trains can potentially be applied to frequency up-conversion imaging in the mid-IR region, in information transmission, and in nonlinear optical signal processing.

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