Photoluminescence and lasing in whispering gallery mode glass microspherical resonators

Ristić, Davor; Berneschi, Simone; Camerini, M.; Farnesi, Daniele; Pelli, S.; Trono, C.; Chiappini, Andrea; Chiasera, Alessandro; Ferrari, Maurizio; Łukowiak, Anna; Dumeige, Yannick; Féron, Patrice; Righini, Giancarlo C.; Soria, Silvia; Conti, G. Nunzi

doi:10.1016/j.jlumin.2015.10.050

Cited by 26 publications

(22 citation statements)

References 40 publications

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“…Tuning a micron-scale whispering gallery resonator in a fashion that does not add to the footprint of the device or require complicated fabrication is a nontrivial task. The main approaches so far include the use of external heaters 17 18 , application of stress/strain via an external clamp 19 20 21 22 , pressure tuning 23 24 25 26 27 , electric field tuning 28 , chemical etching 29 30 , on-chip resistance heating 31 32 , photorefractive tuning 33 and thermo-optic tuning 34 35 36 . Each of these methods has its own distinct advantages and disadvantages and the choice of method depends ultimately on the final application.…”

mentioning

confidence: 99%

Glass-on-Glass Fabrication of Bottle-Shaped Tunable Microlasers and their Applications

Ward

Yang

Chormaic

2016

Sci Rep

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We describe a novel method for making microbottle-shaped lasers by using a CO2 laser to melt Er:Yb glass onto silica microcapillaries or fibres. This is realised by the fact that the two glasses have different melting points. The CO2 laser power is controlled to flow the doped glass around the silica cylinder. In the case of a capillary, the resulting geometry is a hollow, microbottle-shaped resonator. This is a simple method for fabricating a number of glass whispering gallery mode (WGM) lasers with a wide range of sizes on a single, micron-scale structure. The Er:Yb doped glass outer layer is pumped at 980 nm via a tapered optical fibre and WGM lasing is recorded around 1535 nm. This structure facilitates a new way to thermo-optically tune the microlaser modes by passing gas through the capillary. The cooling effect of the gas flow shifts the WGMs towards shorter wavelengths and thermal tuning of the lasing modes over 70 GHz is achieved. Results are fitted using the theory of hot wire anemometry, allowing the flow rate to be calibrated with a flow sensitivity as high as 72 GHz/sccm. Strain tuning of the microlaser modes by up to 60 GHz is also demonstrated.

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mentioning

confidence: 99%

Glass-on-Glass Fabrication of Bottle-Shaped Tunable Microlasers and their Applications

Ward

Yang

Chormaic

2016

Sci Rep

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“…Then, we describe our experimental setup enabling us to measure the relative intensity noise (RIN) and time domain crosscorrelations between the co-and counter-propagating WGM laser signals. Finally, we analyze bidirectional laser emissions from WGM micro-lasers made of two different host matrices, namely a phosphate glass (Schott IOG-1 [37]) and a fluoride glass (ZBLALiP [38]), both doped with erbium ions. Figure 1 shows the sketch of a WGM laser consisting of a microsphere coupled to an access waveguide with a rate 1/τ P .…”

Section: Introductionmentioning

confidence: 99%

Dynamical Analysis of Modal Coupling in Rare-Earth Whispering-Gallery-Mode Microlasers

et al. 2019

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We report on an experimental study of laser regime in erbium-doped whispering gallery mode (WGM) microspheres under modal-coupling between the co-and counter-propagating modes. The evidence of modal coupling has been observed in the relative intensity noise spectrum of several WGM lasers. Cross-correlation measurements have been carried out in order to determine precisely the emission regimes. It is shown that depending on the material constituting the WGM resonator, frequency locked bidirectional emission or self-modulated regime can be reached. The control of the laser emission regime of WGM micro-lasers is of great importance in the aim of applications in microwave optics or optical sensor miniaturization.

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“…A lot of geometries (spheres, torus [14], disks [15]) and materials have been studied since the first demonstration of solid state WGM micro-resonator lasing [3]. These particular lasers have been extensively studied in terms of oscillation threshold [3,16], output power performances [17] and spectral purity [18]. Otherwise the phase or frequency noise of semiconductor or fiber lasers including a WGM resonator has been studied [19,20].…”

Section: Introductionmentioning

confidence: 99%

Theoretical and experimental analysis of rare earth whispering gallery mode laser relative intensity noise

Ceppe¹,

Mortier²,

Féron³

et al. 2017

Opt. Express

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The relative intensity noise (RIN) of a solid state whispering-gallery-mode class-B laser is studied both theoretically and experimentally under different pumping regimes. In particular, we show that harmonics of the spiking frequency are observed in the RIN spectrum. A rate equation model including Langevin forces and the nonlinear coupling between inverted ion and photon number fluctuations has been developed to reproduce the experimental results and to extract relevant physical parameters from the fitting of the RIN spectrum. * yannick.dumeige@univ-rennes1.fr

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Photoluminescence and lasing in whispering gallery mode glass microspherical resonators

Cited by 26 publications

References 40 publications

Glass-on-Glass Fabrication of Bottle-Shaped Tunable Microlasers and their Applications

Glass-on-Glass Fabrication of Bottle-Shaped Tunable Microlasers and their Applications

Dynamical Analysis of Modal Coupling in Rare-Earth Whispering-Gallery-Mode Microlasers

Theoretical and experimental analysis of rare earth whispering gallery mode laser relative intensity noise

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