Toward all-fiber supercontinuum spanning the mid-infrared

Darren D. Hudson, Sergei Antipov, Lizhu Li, Imtiaz Alamgir, Tomonori Hu, Mohammed El Amraoui, Younes Messaddeq, Martin Rochette, Stuart D. Jackson, Alexander Fuerbach

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Broadband laser light sources in the mid-infrared region attract enormous interest due to the plethora of applications they are enabling, including multispecies trace gas detection, free-space communications, and infrared countermeasures. Key to the progress in supercontinuum generation has been the wide availability of fiber-based near-infrared and bulk-optic mid-infrared pump sources and suitably engineered nonlinear media capable of supporting high-brightness supercontinua. A large proportion of the system complexity relates to the pump source itself with free-space systems based on parametric conversion being the most common for the generation of long-wavelength supercontinua. In an effort to realize all fiber and all mid-infrared supercontinuum sources, we combine a recently developed 2.9 μm ultrafast fiber laser based on holmium with an environmentally stable, polymer-protected all-chalcogenide tapered fiber. By launching 230 fs, 4.2 kW peak power pulses into the As2Se3∕As2S3 tapered fiber, we demonstrate a spectrum spanning from 1.8 to 9.5 μmat the −20 dB points with an average power of more than 30 mW. This >2 octave-spanning supercontinuum is a crucial step toward robust mid-infrared broadband sources required for future field-deployable instruments.

LanguageEnglish
Article number298029
Pages1163-1166
Number of pages4
JournalOptica
Volume4
Issue number10
DOIs
Publication statusPublished - 20 Oct 2017

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Infrared radiation
fibers
Light sources
Fibers
pumps
broadband
space communication
holmium
countermeasures
launching
octaves
Holmium
Pumps
Supercontinuum generation
fiber lasers
availability
Ultrafast lasers
proportion
light sources
brightness

Cite this

Hudson, D. D., Antipov, S., Li, L., Alamgir, I., Hu, T., El Amraoui, M., ... Fuerbach, A. (2017). Toward all-fiber supercontinuum spanning the mid-infrared. Optica, 4(10), 1163-1166. [298029]. https://doi.org/10.1364/OPTICA.4.001163
Hudson, Darren D. ; Antipov, Sergei ; Li, Lizhu ; Alamgir, Imtiaz ; Hu, Tomonori ; El Amraoui, Mohammed ; Messaddeq, Younes ; Rochette, Martin ; Jackson, Stuart D. ; Fuerbach, Alexander. / Toward all-fiber supercontinuum spanning the mid-infrared. In: Optica. 2017 ; Vol. 4, No. 10. pp. 1163-1166.
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Hudson, DD, Antipov, S, Li, L, Alamgir, I, Hu, T, El Amraoui, M, Messaddeq, Y, Rochette, M, Jackson, SD & Fuerbach, A 2017, 'Toward all-fiber supercontinuum spanning the mid-infrared', Optica, vol. 4, no. 10, 298029, pp. 1163-1166. https://doi.org/10.1364/OPTICA.4.001163

Toward all-fiber supercontinuum spanning the mid-infrared. / Hudson, Darren D.; Antipov, Sergei; Li, Lizhu; Alamgir, Imtiaz; Hu, Tomonori; El Amraoui, Mohammed; Messaddeq, Younes; Rochette, Martin; Jackson, Stuart D.; Fuerbach, Alexander.

In: Optica, Vol. 4, No. 10, 298029, 20.10.2017, p. 1163-1166.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Hudson, Darren D.

AU - Antipov, Sergei

AU - Li, Lizhu

AU - Alamgir, Imtiaz

AU - Hu, Tomonori

AU - El Amraoui, Mohammed

AU - Messaddeq, Younes

AU - Rochette, Martin

AU - Jackson, Stuart D.

AU - Fuerbach, Alexander

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Hudson DD, Antipov S, Li L, Alamgir I, Hu T, El Amraoui M et al. Toward all-fiber supercontinuum spanning the mid-infrared. Optica. 2017 Oct 20;4(10):1163-1166. 298029. https://doi.org/10.1364/OPTICA.4.001163