In-band pumped erbium doped glass microspherical lasers

Thalakkal, Snigdha Thekke; Ristić, Davor; Pelli, Stefano; Farnesi, Daniele; Soria, Silvia; Gebavi, Hrvoje; Chiasera, Alessandro; Androš Dubraja, Lidija; Ivanda, Mile; Nunzi Conti, Gualtiero (2024) In-band pumped erbium doped glass microspherical lasers. Ceramics International . ISSN 0272-8842 (In Press)

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Abstract

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.

Item Type:	Article
Uncontrolled Keywords:	whispering gallery mode lasers; erbium doped glass; resonant pumping; thermal effects
Subjects:	NATURAL SCIENCES > Physics NATURAL SCIENCES > Chemistry > Physical Chemistry
Divisions:	Division of Materials Chemistry Division of Materials Physics
Projects:	Project title Project leader Project code Project type Sferni optički mikrorezonatori za senzoriku, lasere i nelinearnu optiku-SOMSLNO Davor Ristić IP-2019-04-3045 HRZZ Potpora vrhunskim istraživanjima Centra izvrsnosti za napredne materijale i senzore- Mile Ivanda; Milko Jakšić; Mario Stipčević; Marko Kralj KK.01.1.1.01.0001 EK
Depositing User:	Davor Ristić
Date Deposited:	17 Apr 2025 08:56
URI:	http://fulir.irb.hr/id/eprint/9701
DOI:	10.1016/j.ceramint.2024.12.036

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