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Programmable FBG-based optical correlators for optical code division multiplexing systems, which are able to change carrier phase of output pulses, are experimentally demonstrated. Phase shifts between adjacent FBGs are tuned thermally with small thermo-electric controllers by PWM signals from a microprocessor. Easy code adaptation with the programmable FBG-based optical correlator is successfully...
A novel all optical single side-band signal generation filter using optically phase shift scheme with fiber Bragg grating based 4-taps optical Hilbert transformer is experimentally demonstrated. The sideband suppression ratio above 10 dB shows the feasibility of the optically phase-shifted SSB scheme which is applicable for high-speed transmission with bandwidth efficiency.
Experimental demonstration of a 24 GHz-band ultra wideband impulse radio (UWB-IR) pulse generation has been reported. The generated UWB-IR pulse has 24.7 GHz of a center frequency and 9.4 GHz of a -10 dB bandwidth.
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