Milliwatt-Level Spontaneous Emission Across the 3.5–8 µm Spectral Region from Pr3+ Doped Selenide Chalcogenide Fiber Pumped with a Laser Diode

A spontaneous emission fiber source operating in the mid-infrared (MIR) wavelength range from 3.5 to 8 µm is demonstrated for the first time at output power levels of at least 1 mW. The source is a Pr3+-doped selenide chalcogenide, multimode, glass fiber pumped with commercially available laser diod...

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Published inApplied sciences Vol. 10; no. 2; p. 539
Main Authors Sojka, Lukasz, Tang, Zhuoqi, Jayasuriya, Dinuka, Shen, Meili, Nunes, Joel, Furniss, David, Farries, Mark, Benson, Trevor M., Seddon, Angela B., Sujecki, Slawomir
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.01.2020
Subjects
Broadband
chalcogenide glass fibers
Chalcogenides
Diodes
Environmental monitoring
Fiber lasers
Glass fibers
Lasers
Light
Mercury cadmium telluride
mid-infrared
mid-infrared light sources
Optics
Semiconductor lasers
Spontaneous emission
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Summary:A spontaneous emission fiber source operating in the mid-infrared (MIR) wavelength range from 3.5 to 8 µm is demonstrated for the first time at output power levels of at least 1 mW. The source is a Pr3+-doped selenide chalcogenide, multimode, glass fiber pumped with commercially available laser diodes operating at 1.470 µm, 1.511 µm and 1.690 µm. This MIR spontaneous emission fiber source offers a viable alternative to broadband mid-infrared supercontinuum fiber sources, which are comparatively complex and costly. The MIR emission wavelength range is significant for molecular sensing applications across biology and chemistry, and in medicine, agriculture, defense, and environmental monitoring.
ISSN:2076-3417
2076-3417
DOI:10.3390/app10020539