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Updated: Jun 22, 2026

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
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Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Published on: April 4, 2016

Modeling rare-earth doped microfiber ring lasers.

Yuhang Li1, Guillaume Vienne, Xiaoshun Jiang

  • 1State Key laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China.

Optics Express
|June 17, 2009
PubMed
Summary
This summary is machine-generated.

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We developed a compact microfiber ring laser that resonates pump and signal light. This design significantly lowers the lasing threshold and boosts efficiency, enabling micro-lasers for various applications.

Area of Science:

  • Optics and Photonics
  • Materials Science

Background:

  • Microfiber ring resonators offer potential for compact laser devices.
  • Integrating active ions into these resonators is key for lasing functionality.

Purpose of the Study:

  • To propose and model a compact laser configuration using a microfiber ring resonator.
  • To investigate the impact of pump resonance on laser performance.
  • To determine the feasibility of micro-scale lasers with specific dopants.

Main Methods:

  • Theoretical modeling using steady-state rate equations.
  • Estimation of the minimum required Q-factor for lasing.
  • Numerical simulations for erbium (Er) and ytterbium (Yb) doped microfiber rings.
  • Analysis of scattering, coupling losses, and pump coupling factors.

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Last Updated: Jun 22, 2026

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
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Published on: April 4, 2016

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
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Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

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Main Results:

  • Pump resonance significantly reduces threshold power and enhances quantum efficiency.
  • Lasing is achievable with Q-factors demonstrated in passive microfiber rings.
  • Efficient ytterbium-doped lasers are predicted for ring diameters down to tens of micrometers.
  • Optimum pump coupling factors and performance dependence on losses were calculated.

Conclusions:

  • The proposed compact microfiber ring laser configuration is feasible.
  • Pump resonance is a critical factor for improving laser efficiency and reducing threshold.
  • This work paves the way for developing highly efficient, micro-scale lasers.