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All‐fiber laser generating at 3.8 μm pumped by 1565 nm fiber laser and the second‐order laser at 1.9 μm
Author(s) -
Tianshu Wang,
Yizhen Wei,
Kai Hu,
Peng Zhang,
Qingsong Jia,
Huilin Jiang
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28198
Subject(s) - fiber laser , materials science , laser , laser power scaling , optics , dispersion shifted fiber , optoelectronics , laser diode , fiber , polarization maintaining optical fiber , distributed feedback laser , diode , fiber optic sensor , physics , composite material
We propose an all‐fiber source at 3.8 μm with a high Tm‐doped fiber as the gain medium pumped by a 1565‐nm high‐power fiber laser. With a laser diode at 1565 nm amplified by a high power erbium‐doped fiber amplifier injecting into a segment of Tm‐doped fiber, a fiber laser at 3.8 μm generates. Simultaneously, a second‐order laser at 1.9 μm (dual‐frequency of 3.8 μm) can be observed clearly. The laser has a threshold pump power of ∼300 mW and generates more than 176 mW continuous‐wave output power with 1560 mW pump power. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:848–850, 2014