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Related Experiment Video

Updated: Jun 15, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Simulation of wavelength conversion based on integrated saturable absorber.

Lili Wang1, Jianhua Ren, Gang Wang

  • 1Electronic and Electrical Engineering School, LuDong University, Hong Qi Middle Street 186, Yantai, 264025, Shandong, China. wanglili78@hotmail.com

Applied Optics
|March 12, 2010
PubMed
Summary

This study analyzes wavelength conversion using a mixed dye saturable absorber. Optimal performance, including high extinction ratio and signal-to-noise ratio (SNR), is achieved by increasing pump power and decreasing probe power and absorption coefficient.

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Related Experiment Videos

Last Updated: Jun 15, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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Published on: December 27, 2012

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Published on: December 11, 2014

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Area of Science:

  • Optics and Photonics
  • Laser Physics
  • Nonlinear Optics

Background:

  • Wavelength conversion is crucial for optical communication systems.
  • Saturable absorbers are key components in laser cavities for wavelength conversion.
  • Existing models may not fully capture the performance dependencies.

Purpose of the Study:

  • To analyze wavelength conversion performance using a mixed dye saturable absorber.
  • To develop an improved theoretical model incorporating the absorption coefficient (βsr).
  • To investigate the impact of pump power, probe power, and βsr on key performance metrics.

Main Methods:

  • Development of an improved theoretical model based on rate equations.
  • Simulation of wavelength conversion performance.
  • Analysis of output extinction ratio, signal-to-noise ratio (SNR), and bit-error-rate (BER).

Main Results:

  • Extinction ratio and SNR increase with higher input pump power.
  • Extinction ratio and SNR decrease with higher probe power and absorption coefficient (βsr).
  • Bit-error-rate (BER) reaches approximately 10⁻¹² under specific power and absorption conditions.

Conclusions:

  • The developed model accurately predicts wavelength conversion performance.
  • Optimizing pump power, probe power, and saturable absorber properties is essential for efficient wavelength conversion.
  • Achievable BER indicates the viability of this method for practical applications.