Angzhen Li
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View article: Evaporation characteristics of Er<sup>3+</sup>-doped silica fiber and its application in the preparation of whispering gallery mode lasers
Evaporation characteristics of Er<sup>3+</sup>-doped silica fiber and its application in the preparation of whispering gallery mode lasers Open
In this work, the concentration of rare-earth ions in doped silica whispering gallery lasers (WGLs) is controlled by evaporation. The fabrication of WGLs is used to experimentally evaluate the evaporation rate (mol/ μ m) and ratio (mol/mol…
View article: Simultaneous Measurement of Gas Pressure and Temperature Using a Microbubble Resonator Combined With an FBG
Simultaneous Measurement of Gas Pressure and Temperature Using a Microbubble Resonator Combined With an FBG Open
We propose and demonstrate a microbubble resonator combined with a fiber Bragg grating (FBG) for simultaneous measurement of gas pressure and temperature. The approach used allows for very close proximity (μm) between the FBG and the micro…
View article: Evaporation characteristics of Er$^{3+}$ doped silica fiber and its application in the preparation of whispering gallery mode lasers
Evaporation characteristics of Er$^{3+}$ doped silica fiber and its application in the preparation of whispering gallery mode lasers Open
The fabrication of whispering gallery lasers (WGL) is used to experimentally evaluate the evaporation rate (mol/$μ$m) and ratio (mol/mol) of erbium and silica lost from a doped fiber during heating. Fixed lengths of doped silica fiber are …
View article: Blue-band optical frequency comb generation and annihilation in silica whispering gallery resonators
Blue-band optical frequency comb generation and annihilation in silica whispering gallery resonators Open
In contrast to the generation of optical frequency combs in the near and mid-infrared wavelengths, pushing optical frequency combs into the visible and ultraviolet is equally valuable, for example for direct applications in miniature optic…
View article: Blue-band frequency comb and photodarkening in silica whispering gallery microresonators
Blue-band frequency comb and photodarkening in silica whispering gallery microresonators Open
To date there are extensive studies of optical nonlinearities in whispering gallery resonators (WGRs) in the near and mid-infrared wavelengths. Pushing this research into the visible region is equally valuable. Here, we demonstrate a Kerr …
View article: Packaged whispering gallery resonator device based on an optical nanoantenna coupler
Packaged whispering gallery resonator device based on an optical nanoantenna coupler Open
In this work, we present a packaged whispering gallery mode (WGM) device based on an optical nanoantenna as the coupler and a glass microsphere as the resonator. The microspheres were fabricated from either SiO 2 fiber or Er 3+ -doped fibe…
View article: A packaged whispering gallery resonator device based on an optical nanoantenna coupler
A packaged whispering gallery resonator device based on an optical nanoantenna coupler Open
In this work, we present the design and fabrication of a packaged whispering gallery mode (WGM) device based on an optical nanoantenna as the coupler and a glass microsphere as the resonator. The microspheres were fabricated from SiO$_2$ f…
View article: Near-Infrared Luminescence and Single-Mode Laser Emission From Nd3+ Doped Compound Glass and Glass Microsphere
Near-Infrared Luminescence and Single-Mode Laser Emission From Nd3+ Doped Compound Glass and Glass Microsphere Open
In this letter, an Nd3+-doped compound fluorosilicate glass was successfully fabricated with the method of melt-quenching. Under the excitation of a 808 nm laser, enhanced near-infrared photoluminescence emission at the range from 1,065 to…
View article: Up-Conversion Luminescence and C-Band Laser in Er<sup>3+</sup>-Doped Fluorozirconate Glass Microsphere Resonator
Up-Conversion Luminescence and C-Band Laser in Er<sup>3+</sup>-Doped Fluorozirconate Glass Microsphere Resonator Open
Up-conversion luminescence and C-band microsphere laser output is reported for an Er3+-doped ZrF4-BaF2-YF3-AlF3 (ZBYA) fluorozirconate glass microsphere. The microsphere was fabricated by heating a ZBYA glass filament using a CO2 laser bea…
View article: In-fiber temperature sensor based on green up-conversion luminescence in an Er<sup>3+</sup>-Yb<sup>3+</sup>co-doped tellurite glass microsphere
In-fiber temperature sensor based on green up-conversion luminescence in an Er<sup>3+</sup>-Yb<sup>3+</sup>co-doped tellurite glass microsphere Open
A novel, to the best of our knowledge, in-fiber temperature sensor based on green up-conversion (UC) luminescence in an Er3+-Yb3+ co-doped tellurite glass microsphere is described. The tellurite glass microsphere is located firmly inside a…
View article: Effect of Tm<sup>3+</sup> concentration on the emission wavelength shift in Tm<sup>3+</sup>-doped silica microsphere lasers
Effect of Tm<sup>3+</sup> concentration on the emission wavelength shift in Tm<sup>3+</sup>-doped silica microsphere lasers Open
In this work, a Tm3+-doped solgel silica microsphere lasing at 2.0 μm is reported. Microspheres with different Tm3+ concentrations are fabricated by overlaying different Tm3+ concentration solgel solutions on the surface of a pure silica m…
View article: An Yb<sup>3+</sup>-Ho<sup>3+</sup> Codoped Glass Microsphere Laser in the $2.0~\mu$ m Wavelength Regions
An Yb<sup>3+</sup>-Ho<sup>3+</sup> Codoped Glass Microsphere Laser in the $2.0~\mu$ m Wavelength Regions Open
In this letter, an Yb 3+ -Ho 3+ codoped sol-gel silica microsphere lasing at around 2.0 μm is reported. The gain microsphere is fabricated by overlaying the 1.0 mol% Yb 3+ -0.2 mol% Ho 3+ codoped sol-gel solution on the surface of a pure s…