Mid IR hollow core fiber gas laser emitting at 4.6 µm
Overview & Synopsis
Emission at 4.6 μm was observed from an N 2 O 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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Document Information
| Document Title | Mid IR hollow core fiber gas laser emitting at 4.6 µm |
|---|---|
| Author / Organization | Beygi Azar Aghbolagh, A. V. Vasudevan Nampoothiri, Benoît Debord, Frédéric Gérôme, Fetah Benabid, Wolfgang Rudolph |
| Subject & Discipline | Multidisciplinary Academic Open Research |
| Categories | Science & Mathematics |
| Publication Year | 2019 |
| License / Rights | Open Access / Creative Commons |
| Resource Verification | Listed PDF (Verification Pending) |
| Original Host Website |
HAL Open Science
(hal.science)
|
| File Format | application/pdf (Portable Document Format) |
| Language | EN |
| Catalog ID | DOC-78792 |
| Original Source Link | Visit Source Page on hal.science » |