FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Proposal and Demonstration for Photonic Generation of a Microwave Signal by Incorporating a Microring Resonator |
CHEN Guo-Jie1,2, HUANG De-Xiu1, ZHANG Xin-Liang1, CAO Hui2, CHEN Wei-Cheng2 |
1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 4300742School of Science, Foshan University, Foshan 528000 |
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Cite this article: |
CHEN Guo-Jie, HUANG De-Xiu, ZHANG Xin-Liang et al 2009 Chin. Phys. Lett. 26 034207 |
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Abstract A proposal for photonic generation of a microwave signal is presented by employing a dual wavelength erbium-doped fibre ring laser. In the laser, a microring resonator is cascaded with a tunable bandpass filter to serve as a dual-wavelength selector, an unpumped polarization maintaining erbium-doped fibre is used as a saturable absorber. By replacing the microring resonator with a delay interferometer to verify the proposal, a wavelength-tunable dual wavelength single longitudinal mode laser is demonstrated, and a microwave signal at 10.01GHz with a linewidth of less than 25kHz is obtained by beating the two wavelengths at a photodetector.
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Keywords:
42.60.Da
42.55.Wd
07.57.-c
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Received: 06 October 2008
Published: 19 February 2009
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PACS: |
42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.55.Wd
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(Fiber lasers)
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07.57.-c
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(Infrared, submillimeter wave, microwave and radiowave instruments and equipment)
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