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Photonic generation of a microwave signal by incorporating a delay interferometer and a saturable absorber.

作者信息

Chen Guojie, Huang Dexiu, Zhang Xinliang, Cao Hui

机构信息

Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology,Wuhan 430074, China.

出版信息

Opt Lett. 2008 Mar 15;33(6):554-6. doi: 10.1364/ol.33.000554.

DOI:10.1364/ol.33.000554
PMID:18347707
Abstract

A novel approach to generate microwave signals is presented by employing a dual-wavelength erbium-doped fiber ring laser. By using a delay interferometer as a comb filter cascaded with a tunable bandpass filter and a saturable absorber formed by an unpumped polarization-maintaining erbium-doped fiber, a stable wavelength-tunable dual-wavelength single longitudinal-mode laser is achieved. A microwave signal at 20.07 GHz with a linewidth of <25 kHz is demonstrated by beating the two wavelengths at a photodetector.

摘要

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