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Injection-locked fiber laser for tunable millimeter-wave generation
Shilong Pan1, Zhenzhou Tang, Dan Zhu
1College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China. pans@nuaa.edu.cn
Optics Letters
|December 20, 2011
Summary
This study introduces a novel dual-ring fiber laser for tunable millimeter-wave (mm-wave) signal generation. The system achieves low-phase-noise mm-wave signals with a wide tuning range, offering improved performance for high-frequency applications.
Area of Science:
- Optoelectronics
- Photonics
- Microwave Engineering
Background:
- Millimeter-wave (mm-wave) signal generation is crucial for advanced communication and sensing systems.
- Existing methods often face challenges with phase noise, tuning range, and mode hopping.
- Optoelectronic oscillators (OEOs) and fiber lasers offer distinct advantages for mm-wave generation.
Purpose of the Study:
- To propose and demonstrate a novel dual-ring injection-locked fiber laser architecture.
- To achieve tunable, low-phase-noise, and mode-hopping-free mm-wave signal generation.
- To combine the benefits of OEOs and fiber lasers for enhanced mm-wave performance.
Main Methods:
- Integration of an optoelectronic oscillator (OEO) ring with a fiber laser ring.
- Utilizing injection-locking techniques to synchronize the two resonant cavities.
- Experimental validation of the proposed dual-ring laser system.
Main Results:
- Successful generation of a low-phase-noise mm-wave signal.
- Demonstrated tunable frequency operation from 30-50 GHz with a 10 GHz tuning step.
- Potential for a 140 GHz tuning range with a high-bandwidth photodetector.
Conclusions:
- The dual-ring injection-locked fiber laser effectively generates tunable mm-wave signals.
- The proposed architecture offers a promising approach for high-frequency, low-noise signal generation.
- This technology has potential applications in advanced wireless communication and radar systems.
