Abstract

We generate a supercontinuum (SC) spectrum ranging from 1.57 μm to 12 μm (20 dB bandwidth) with a soft glass fiber cascade consisting of ZrF4-BaF2-LaF3-AlF3-NaF fiber, As2S3 fiber, and As2Se3 fiber pumped by a nanosecond thulium master oscillator power amplifier system. The highest on-time average power generated is 417 mW at 33% duty cycle. We observe a near-diffraction-limit beam quality across the wavelength range from 3 μm to 12 μm, even though the As2Se3 fiber is multimode below 12 μm. Our study also shows that parameters of the As2Se3 fiber, such as numerical aperture, core size, and core/cladding composition, have significant effects on the long wavelength edge of the generated SC spectrum. Our results suggest that the high numerical aperture of 0.76 and low-loss As2Se3/GeAs2Se5 core/cladding material all contribute to broad SC generation in the long-wave infrared spectral region. Also, among our results, 10 μm core diameter selenide fiber yields the best spectral expansion, while the 12 μm core diameter selenide fiber yields the highest output power.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Mid-infrared supercontinuum generation from 1.6 to >11  μm using concatenated step-index fluoride and chalcogenide fibers

Ramon A. Martinez, Genevieve Plant, Kaiwen Guo, Brian Janiszewski, Michael J. Freeman, Robert L. Maynard, Mohammed N. Islam, Fred L. Terry, Oseas Alvarez, Francois Chenard, Robert Bedford, Ricky Gibson, and Agustin I. Ifarraguerri
Opt. Lett. 43(2) 296-299 (2018)

Multioctave midinfrared supercontinuum generation in suspended-core chalcogenide fibers

O. Mouawad, J. Picot-Clémente, F. Amrani, C. Strutynski, J. Fatome, B. Kibler, F. Désévédavy, G. Gadret, J.-C. Jules, D. Deng, Y. Ohishi, and F. Smektala
Opt. Lett. 39(9) 2684-2687 (2014)

Infrared supercontinuum generated in concatenated InF3 and As2Se3 fibers

Francis Théberge, Nancy Bérubé, Samuel Poulain, Solenn Cozic, Stéphane Châtigny, Louis-Rafaël Robichaud, Louis-Philippe Pleau, Martin Bernier, and Réal Vallée
Opt. Express 26(11) 13952-13960 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (21)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (6)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription