Lead silicate glass microsphere resonators with absorption-limited Q

Wang, Pengfei; Murugan, Ganapathy Senthil; Lee, Timothy J.; Feng, Xian; Semenova, Yuliya; Wu, Qiang; Loh, W.H.; Brambilla, Gilberto; Wilkinson, James S.; Farrell, Gerald

doi:10.1063/1.3586771

Cited by 16 publications

(15 citation statements)

References 17 publications

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“…In this section, a method of fabricating a lead silicate microspheres is introduced [60], and is similar to the method that uses a CO2 laser to fabricate a silica optical microsphere as described in the previous section. The glass fiber is softened using a heat source and then the microspheres are formed due to surface tension of the glass fiber.…”

Section: Fabrication Of Lead Silicate Microspheresmentioning

confidence: 99%

“…Compound glass doped glass microspheres (such as lead silicate and bismuth glasses) possess a high nonlinear coefficient [60,71].…”

Section: Other High-q Compound Glass Microspheresmentioning

confidence: 99%

“…Figure 17. Transmission spectra of the lead silicate microsphere in different spectral regions [60].…”

Section: Other High-q Compound Glass Microspheresmentioning

confidence: 99%

“…The newly formed half tapered fiber is then positioned in close proximity to the microheater and heated to 900 o C, which is higher than the softening point of the glass and thus the fused lead silicate glass fiber is melted to form the microsphere due to the surface tension of the lead silicate glass fiber. (a) Cross-section of lead silicate fiber; (b) a fiber is tapered by using a microheater; (c) the uniform waist of the tapered fiber is cleaved; (d) a lead silicate microsphere is formed [60].…”

Section: Fabrication Of Lead Silicate Microspheresmentioning

confidence: 99%

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Compound Glass Microsphere Resonator Devices

Yu¹,

Lewis²,

Farrell³

et al. 2018

Preprint

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Abstract: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.

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Section: Fabrication Of Lead Silicate Microspheresmentioning

confidence: 99%

“…Compound glass doped glass microspheres (such as lead silicate and bismuth glasses) possess a high nonlinear coefficient [60,71].…”

Section: Other High-q Compound Glass Microspheresmentioning

confidence: 99%

“…Figure 17. Transmission spectra of the lead silicate microsphere in different spectral regions [60].…”

Section: Other High-q Compound Glass Microspheresmentioning

confidence: 99%

Section: Fabrication Of Lead Silicate Microspheresmentioning

confidence: 99%

See 2 more Smart Citations

Compound Glass Microsphere Resonator Devices

Yu¹,

Lewis²,

Farrell³

et al. 2018

Preprint

Self Cite

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show abstract

“…compound glass materials with the unique properties of higher refractive indices (for tighter mode confinement) and larger optical nonlinearities. For example, lead-silicate (SiO 2 -PbO) glasses with a high content of leadoxide have a nonlinear refractive index (n 2 ) that can be as high as 20 times that of conventional silica [12]. Glasses with high nonlinearity are of immense importance for devices performing optical switching and frequency comb generation, thus a high Q-factor lead-silicate glass microbubble resonator is promising for realizing such nonlinear processes with very low-threshold power.…”

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confidence: 99%

Lead-silicate glass optical microbubble resonator

Wang

Ward²,

Yang³

et al. 2015

Applied Physics Letters

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Microbubble whispering gallery resonators have the potential to become key components in a variety of active and passive photonic circuit devices by offering a range of significant functionalities. Here, we report on the fabrication, optical characterization, and theoretical analysis of lead-silicate glass, optical microbubble resonators. Evanescent field coupling to the microbubbles was achieved using a 1 µm diameter, silica microfiber at a wavelength of circa 775 nm. High Q-factor modes were efficiently excited in both single-stem and two-stem, lead-silicate glass, microbubble resonators, with bubble diameters of 38 µm (single-stem) and 48 µm (two-stem). Whispering gallery mode resonances with Q-factors as high as 2.3×10 5 (single-stem) and 7×10 6 (two-stem) were observed. By exploiting the high-nonlinearity of the lead-silicate glass, this work will act as a catalyst for studying a range of nonlinear optical effects in microbubbles, such as Raman scattering and four-wave mixing, at low optical powers.Over the past few decades whispering gallery mode resonators, such as microdisks, microrings, microspheres, and microtoroids have been investigated intensively across a wide range of applications, such as bio and chemical sensing [1][2][3], and in the study of fundamental physics, such as optical force trapping [4], optomechanics [5,6] and cavity quantum electrodynamics [7,8]. In 2010, a silica optical microbubble resonator was fabricated [9] by heating the mid-section of a pressurized rotating silica glass microcapillary with a CO 2 laser. The microcapillary expanded under internal air pressure and a microbubble was formed at the midsection with a diameter of circa 300 μm and a wall thickness of ~2 μm. A CO 2 laser heating technique was used because it provides a reasonably stable radiative heat source regardless of the influence from external airflow compared with the more conventional heating

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Spectrally resolved resonant propulsion of dielectric microspheres

Maslov²,

Limberopoulos

et al. 2015

Laser & Photonics Reviews

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Lead silicate glass microsphere resonators with absorption-limited Q

Cited by 16 publications

References 17 publications

Compound Glass Microsphere Resonator Devices

Compound Glass Microsphere Resonator Devices

Lead-silicate glass optical microbubble resonator

Spectrally resolved resonant propulsion of dielectric microspheres

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