Abstract
A novel approach for generating high-frequency microwave signals is
proposed and experimentally demonstrated. With a pair of wavelength matched
fiber Bragg gratings written directly in a polarization-maintaining erbium-doped
fiber, a stable short cavity dual-wavelength single-longitudinal-mode (DW-SLM)
distributed-Bragg-reflector fiber laser with orthogonal oscillation modes
is realized at room temperature. The wavelength spacing between the two lasing
modes is 0.374 nm. By heterodyning the two wavelengths of the DW-SLM fiber
laser at a photodetector, microwave signal at over 46 GHz is achieved.
© 2009 IEEE
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