Power stable 1.5-10.5  µm cascaded mid-infrared supercontinuum laser without thulium amplifier

We demonstrate a simple and power stable 1.5-10.5 µm cascaded mid-infrared 3 MHz supercontinuum fiber laser. To increase simplicity and decrease cost, the design of the fiber cascade is optimized so that no thulium amplifier is needed. Despite the simple design with no thulium amplifier, we demonstr...

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Bibliographic Details
Published in:Optics letters 2021-03, Vol.46 (5), p.1129-1132
Main Authors: Woyessa, Getinet, Kwarkye, Kyei, Dasa, Manoj K, Petersen, Christian R, Sidharthan, Raghuraman, Chen, Shaoxiang, Yoo, Seongwoo, Bang, Ole
Format: Article
Language:English
Subjects:
Amplifier design
Amplifiers
Design optimization
Fiber lasers
Infrared lasers
Power spectral density
Stability
Thulium
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Summary:We demonstrate a simple and power stable 1.5-10.5 µm cascaded mid-infrared 3 MHz supercontinuum fiber laser. To increase simplicity and decrease cost, the design of the fiber cascade is optimized so that no thulium amplifier is needed. Despite the simple design with no thulium amplifier, we demonstrate a high average output power of 86.6 mW. Stability measurements for seven days with 8-9 h operation daily revealed fluctuations in the average power with a standard deviation of only 0.43% and a power spectral density stability of ±0.18 / for wavelengths
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.416123