Short vertical tube furnace for the fabrication of doped glass microsphere lasers

Ward, Jonathan; Wu, Yaqiao; Khalfi, Krimo; Chormaic, Síle Nic

doi:10.1063/1.3455198

Cited by 17 publications

(13 citation statements)

References 29 publications

(28 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One method involves making a single cavity by drawing out a glass wire from a piece of doped glass and melting the tip of the wire to form a spherical resonator 1 . Alternatively, many spherical resonators can be made simultaneously by passing particles of doped glass through a furnace 2 3 . Both of these methods are tedious; in the first case, only one resonator can be made at a time.…”

mentioning

confidence: 99%

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

Ward

Yang

Chormaic

2016

Sci Rep

Self Cite

View full text Add to dashboard Cite

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.

show abstract

mentioning

confidence: 99%

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

Ward

Yang

Chormaic

2016

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Chalcogenide glass microspheres have also been made using a 1-metre long vertical tube furnace [32], whereby crushed glass powder was initially sieved to obtain the required particle size. Recently, Ward et al [33] reported on the design of a short (133 mm) electric tube furnace that can be used for the fabrication of glass microspheres. In this setup a right-angle injection system was designed to blow the glass powder safely into the heated area and to overcome the chimney effect, see …”

Section: Microsphere Fabricationmentioning

confidence: 99%

WGM microresonators: sensing, lasing and fundamental optics with microspheres

Ward

Benson

2011

Laser & Photonics Reviews

296

197

View full text Add to dashboard Cite

Glass microsphere resonators that support optical resonances known as whispering-gallery modes are unique tools for studying and exploiting optical effects under extremely well controlled conditions. In this paper, a review focusing mostly on glass microsphere resonators is presented. First, a brief historical background is given in which is shown how the stateof-the-art has grown from novel optical resonators to the ultrahigh Q cavities used in cutting-edge experiments. After the basic properties of microsphere resonators are outlined some of the recent experiments involving microsphere resonators are discussed, although some discussion involving polymeric microspheres is also included. The use of doped and undoped microspheres in optical signal processing, optical sensing and quantum optics is highlighted. Finally, there is a brief review of recent optomechanical experiments that use microspheres.

show abstract

“…This is extremely important for chalcogenide glass introduced in the previous section. Therefore, a powder floating method has been proposed [ 72 , 73 ], which is not only capable of producing microspheres of different sizes at the same time, but also effectively avoids the introduction of impurities.…”

Section: Fabrication Of Compound Glass Microspheresmentioning

confidence: 99%

Compound Glass Microsphere Resonator Devices

Lewis

Farrell³

et al. 2018

Micromachines

View full text Add to dashboard Cite

In recent years, compound glass microsphere resonator devices have attracted increasing interest and have been widely used in sensing, microsphere lasers, and nonlinear optics. Compared with traditional silica resonators, compound glass microsphere resonators have many significant and attractive properties, such as high-Q factor, an ability to achieve high rare earth ion, wide infrared transmittance, and low phonon energy. This review provides a summary and a critical assessment of the fabrication and the optical characterization of compound glasses and the related fabrication and applications of compound glass microsphere resonators.

show abstract

Short vertical tube furnace for the fabrication of doped glass microsphere lasers

Cited by 17 publications

References 29 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

WGM microresonators: sensing, lasing and fundamental optics with microspheres

Compound Glass Microsphere Resonator Devices

Contact Info

Product

Resources

About