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Updated: Jul 9, 2026
09:43
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Frequency modulation via the Doppler effect in optical fibers.
Optics Letters
|December 12, 2007
Summary
We demonstrate optical frequency modulation using the Doppler effect by stretching optical fibers. This method achieves pure frequency shifts without spectral degradation, applicable to any light source.
Area of Science:
- Physics
- Optics
- Photonics
Background:
- Optical frequency modulation is crucial for various applications.
- Existing methods may suffer from spectral degradation or wavelength dependency.
Purpose of the Study:
- To present a novel method for optical frequency modulation.
- To demonstrate pure frequency shifts using the Doppler effect in optical fibers.
Main Methods:
- Rapidly stretching an optical fiber to alter the optical path length.
- Utilizing the Doppler effect to induce a frequency shift in propagating light.
- Experimental validation using a vibrating bobbin setup.
Main Results:
- Achieved a pure frequency shift without spectral degradation.
- Demonstrated wavelength independence, applicable to diverse light sources.
- Experimentally realized a frequency excursion of approximately 100 MHz at 180 Hz.
Conclusions:
- Optical frequency modulation via fiber stretching is a viable technique.
- The Doppler effect in optical fibers offers a robust method for frequency control.
- This technique has broad applicability across different light sources and wavelengths.
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