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Published on: April 20, 2016
Flat-top pulse generation based on a fiber Bragg grating in transmission.
Miguel A Preciado1, Miguel A Muriel
1ETSI Telecommunication, Universidad Politecnica de Madrid, Madrid, Spain. ma.preciado@upm.es
Optics Letters
|March 14, 2009
Summary
We developed a novel flat-top pulse generator using a fiber Bragg grating (FBG). This device reshapes Gaussian pulses into flat-top pulses with high fidelity for advanced applications.
Area of Science:
- Photonics
- Optical Engineering
- Signal Processing
Background:
- Generating optical pulses with specific temporal shapes is crucial for various applications.
- Traditional methods for pulse shaping can be complex and limited in bandwidth.
Purpose of the Study:
- To propose and analyze a novel flat-top pulse generator.
- To demonstrate the capability of a fiber Bragg grating (FBG) for pulse reshaping.
Main Methods:
- Utilizing a uniform period fiber Bragg grating (FBG) in transmission.
- Designing the FBG to achieve a sinc-like spectral response (amplitude and phase).
- Leveraging logarithm Hilbert transform relations for spectral reshaping.
Main Results:
- The designed FBG exhibits a spectral response approximating a sinc function.
- A Gaussian-like input pulse is successfully reshaped into a flat-top pulse.
- The method demonstrates effective pulse shaping within a specific bandwidth.
Conclusions:
- A fiber Bragg grating (FBG) can effectively generate flat-top optical pulses.
- This approach offers a compact and efficient method for pulse shaping.
- The proposed generator has potential applications in optical communications and signal processing.
