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Updated: Jun 10, 2026
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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Two-dimensionally tunable microwave signal generation based on optical frequency-to-time conversion.
Jia Ye1, Lianshen Yan, Wei Pan
1Center for Information Photonics & Communications, School of Information Science and Technology,Southwest Jiaotong University, Chengdu, 610031, Sichuan, China.
Optics Letters
|August 4, 2010
Summary
We developed a novel all-fiber method to create tunable microwave signals. This technique allows for precise control over both signal frequency and pulse width by shaping the optical spectrum.
Area of Science:
- Photonics and Optical Engineering
- Microwave Signal Generation
- Fiber Optic Systems
Background:
- Traditional microwave signal generation methods often lack flexibility in frequency and pulse width control.
- Integrated photonic systems offer potential but can be complex and costly.
Purpose of the Study:
- To demonstrate an all-fiber approach for generating microwave signals with independently tunable frequency and pulse width.
- To provide a flexible and cost-effective solution for microwave signal generation.
Main Methods:
- Utilizing a spectrum shaper composed of a variable differential-group-delay element and a bandwidth-tunable optical filter to adjust the optical power spectrum.
- Employing frequency-to-time conversion within a dispersive fiber to translate optical spectrum characteristics into microwave signal properties.
Main Results:
- Successfully generated microwave signals with user-defined frequency and pulse width.
- Demonstrated tunability by modifying the shape of the optical spectrum.
Conclusions:
- The proposed all-fiber method offers a practical and versatile platform for generating tunable microwave signals.
- This approach has potential applications in various fields requiring flexible microwave signal generation.
