| Title: |
80-μs pulsewidth from a circulation-free diode-pumped liquid organic laser limited by thermal blooming |
| Authors: |
Longo, A, V; Hamja, A.; Forget, Sébastien; Chenais, S. |
| Contributors: |
Laboratoire de Physique des Lasers (LPL); Université Paris 13 (UP13)-Centre National de la Recherche Scientifique (CNRS)-Université Sorbonne Paris Nord; ANR-20-CE30-0026,PULSE,Lasers organiques ultrabrefs(2020) |
| Source: |
ISSN: 1094-4087 ; Optics Express ; https://hal.science/hal-04189389 ; Optics Express, 2023, 31 (14), pp.23533. ⟨10.1364/oe.480590⟩. |
| Publisher Information: |
CCSD; Optical Society of America - OSA Publishing |
| Publication Year: |
2023 |
| Collection: |
Université Paris 13: HAL |
| Subject Terms: |
laser; organics; optics; [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] |
| Description: |
International audience ; Continuous-wave laser emission is challenging to obtain in organic lasers, whether in the solid or liquid form, a limitation caused by long-lived triplet states and by thermal effects. In liquid dye lasers, both issues can be fixed by rapidly flowing the dye, which is technically complex and prevents those lasers to be further miniaturized or easily integrated. Here we address the issue of the maximal pulsewidth that can be obtained in liquid dye lasers in the absence of any dye flow, in a compact and cost-effective diode-pumped laser system. Pulses as long as 80 µs have been obtained, thanks to the combination of a hemispherical resonator design, almost insensitive to thermal-lens effects, and an intentional mismatch between pump and cavity spatial modes. The limitation in pulse duration is shown to be entirely due to thermal blooming, and more specifically to diffraction losses brought by the spherical aberration of the thermal lens. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1364/oe.480590 |
| Availability: |
https://hal.science/hal-04189389; https://hal.science/hal-04189389v1/document; https://hal.science/hal-04189389v1/file/optics%20express%20publi%C3%A9%20Longo.pdf; https://doi.org/10.1364/oe.480590 |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.C912BD7E |
| Database: |
BASE |