Emission at 4.6 μm was observed from an N2O filled hollow core fiber laser. 8-ns pump pulses at 1.517 μm excited a vibrational overtone resulting in lasing on an R and P branch fundamental transition from the upper pump state. At optimum gas pressure of 80 Torr, photon conversion efficiency of 9% and slope efficiency of 3% were observed from a mirrorless laser. The laser threshold occurred at absorbed pump energy of 150 nJ in a 45-cm long fiber with 85 μm core diameter. The observed dependence of the laser output on gas pressure was shown to be a result of line broadening and relaxation rates.

Mid IR hollow core fiber gas laser emitting at 4.6 μm / Aghbolagh, F. B. A.; Nampoothiri, V.; Debord, B.; Gerome, F.; Vincetti, L.; Benabid, F.; Rudolph, W.. - In: OPTICS LETTERS. - ISSN 0146-9592. - 44:2(2019), pp. 383-386. [10.1364/OL.44.000383]

Mid IR hollow core fiber gas laser emitting at 4.6 μm

Vincetti, L.;
2019

Abstract

Emission at 4.6 μm was observed from an N2O filled hollow core fiber laser. 8-ns pump pulses at 1.517 μm excited a vibrational overtone resulting in lasing on an R and P branch fundamental transition from the upper pump state. At optimum gas pressure of 80 Torr, photon conversion efficiency of 9% and slope efficiency of 3% were observed from a mirrorless laser. The laser threshold occurred at absorbed pump energy of 150 nJ in a 45-cm long fiber with 85 μm core diameter. The observed dependence of the laser output on gas pressure was shown to be a result of line broadening and relaxation rates.
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Mid IR hollow core fiber gas laser emitting at 4.6 μm / Aghbolagh, F. B. A.; Nampoothiri, V.; Debord, B.; Gerome, F.; Vincetti, L.; Benabid, F.; Rudolph, W.. - In: OPTICS LETTERS. - ISSN 0146-9592. - 44:2(2019), pp. 383-386. [10.1364/OL.44.000383]
Aghbolagh, F. B. A.; Nampoothiri, V.; Debord, B.; Gerome, F.; Vincetti, L.; Benabid, F.; Rudolph, W.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/1171050
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