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Updated: May 16, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Dynamic optical arbitrary waveform generation with amplitude controlled by interference of two FBG arrays
1Tianjin Key Laboratory of Film Electronics and Communication Devices, Communication Device and Technology Engineering Research Center, Ministry of Education, Tianjin University of Technology, Tianjin, 300384, China. alzhang99@hotmail.com
This study introduces a new dynamic optical arbitrary waveform generator (O-AWG) using fiber Bragg grating (FBG) arrays. This novel design allows for precise control over optical pulse trains, enabling diverse waveform generation.
Area of Science:
- Photonics
- Optical Engineering
- Signal Processing
Background:
- Optical arbitrary waveform generation (O-AWG) is crucial for advanced optical systems.
- Existing methods often lack dynamic control over amplitude and phase.
- Fiber Bragg gratings (FBGs) offer precise wavelength selectivity.
Purpose of the Study:
- To propose a novel dynamic O-AWG structure.
- To achieve independent amplitude and phase control for optical waveforms.
- To enable generation of optical pulse trains with arbitrary and non-uniform characteristics.
Main Methods:
- Utilizing two fiber Bragg grating (FBG) arrays.
- Employing fiber stretchers (FSs) for amplitude control via interference.
- Simultaneously controlling phase using FSs to adjust phase shifts.
Main Results:
- Demonstrated dynamic control over optical waveform generation.
- Achieved arbitrary control of pulse intensity, spacing, and width.
- Successfully generated optical pulse trains with non-uniform characteristics.
Conclusions:
- The proposed FBG-based O-AWG offers a flexible platform for generating diverse optical waveforms.
- The dynamic control mechanism allows for precise tailoring of optical pulse characteristics.
- This technology has potential applications in optical communications and signal processing.
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