Microwave Generation Based on an Inverse-Gaussian Apodized Fiber Bragg Grating and a Semiconductor Optical Amplifier Operating in Low-Gain Regime

DOI: 10.5176/978-981-08-7656-2_NTC2010-26

Authors: Bo Lin, Swee Chuan Tjin, Han Zhang, Dingyuan Tang, Jianzhong Hao, Bo Dong, and Sheng Liang

Abstract:

A stable dual-wavelength erbium-doped fiber laser that can generate a microwave signal is presented. In the ringcavity, an inverse-Gaussian apodized fiber Bragg grating based dual-wavelength pass band filter, a semiconductor optical amplifier biased in low-gain regime, and a feedback fiber loop, guarantee a stable single-longitudinal-mode operation at each lasing line. A microwave signal at 12.51 GHz is obtained by beating the dual wavelengths at a photodetector. The proposed fiber laser can find potential applications in broadband wireless access network and optical sensing network.