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Updated: May 29, 2026
09:39
In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
Published on: May 27, 2013
Noise reduction of supercontinua via optical feedback
Nicoletta Brauckmann1, Michael Kues, Petra Gross
1Institute of Applied Physics, Westfälische Wilhelms-Universität, Corrensstraße 2, 48149 Münster, Germany. brauckmann@uni-muenster.de
Optics Express
|September 22, 2011
Summary
Delayed optical feedback significantly reduces supercontinuum noise. This study shows power noise reduction by 15 dB and spectral amplitude noise reduction by up to 28 dB in fiber laser systems.
Area of Science:
- Nonlinear Optics
- Laser Physics
- Optical Engineering
Background:
- Supercontinuum generation is crucial for various optical applications.
- Noise properties of supercontinuum sources impact system performance.
- Optical feedback mechanisms can influence laser dynamics.
Purpose of the Study:
- To investigate the impact of delayed optical feedback on supercontinuum noise.
- To compare noise properties with and without optical feedback.
- To quantify noise reduction achieved through optical feedback.
Main Methods:
- Numerical simulations of supercontinuum generation with delayed optical feedback.
- Experimental setup involving femtosecond laser pulses, microstructured fiber, and a ring resonator.
- Measurement and comparison of power noise and spectral amplitude noise.
Main Results:
- Delayed optical feedback was successfully implemented in a supercontinuum generation system.
- Numerical and experimental results show significant noise reduction.
- Demonstrated a 15 dB reduction in power noise and up to 28 dB reduction in spectral amplitude noise.
Conclusions:
- Delayed optical feedback is an effective method for suppressing noise in supercontinuum generation.
- The findings have implications for improving the quality of light sources for spectroscopy and imaging.
- This technique offers a practical approach to enhance the stability of fiber-based supercontinuum sources.
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