In-band pumped erbium doped glass microspherical lasers
High- Q whispering gallery mode (WGM) microspherical resonators made in rare earth (RE) doped glasses are an ideal platform to implement compact and low threshold laser sources and represent a simple tool for the characterization of laser glasses and an ideal platform for several sensing applications. In the case of Erbium-doped glass, the conventional pumping is performed at 980 nm or at 1480 nm. In this work on erbium doped tellurite glass microspheres, we demonstrate WGM lasers with resonant pumping in the C telecom band using pump frequencies for which the absorption cross section is smaller than the emission cross section. Reduced thermal effects are observed, with laser emissions above 1600 nm.
Authors
- Gualtiero Nunzi Conti (ORCID: https://orcid.org/0000-0002-2239-7622)
- Daniele Farnesi (ORCID: https://orcid.org/0000-0001-8439-0453)
- Lidija Androš Dubraja (ORCID: https://orcid.org/0000-0002-7648-4940)
- Alessandro Chiasera
- Snigdha Thekke Thalakkal (ORCID: https://orcid.org/0000-0003-1260-5990)
- Mile Ivanda (ORCID: https://orcid.org/0000-0002-3785-8321)
- Silvia Soria (ORCID: https://orcid.org/0000-0002-4838-2197)
- Hrvoje Gebavi (ORCID: https://orcid.org/0000-0002-0982-1417)
- S. Pelli (ORCID: https://orcid.org/0000-0002-6960-5003)
- Davor Ristić
Institutions
- Nello Carrara Institute of Applied Physics (IT)
- Ruđer Bošković Institute (HR)
Publication Details
- Journal
- Ceramics International
- Published
- 2024-12-03
- DOI
- https://doi.org/10.1016/j.ceramint.2024.12.036
- Citations
- 2
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.42
Funders
- Hrvatska Zaklada za Znanost