Abstract
An OC-192 optical return-to-zero- (RZ-) formatted OR logic gate is experimentally demonstrated and theoretically interpreted for the first time to our knowledge. It is implemented by using a data format converter based on an optically injection-locked Fabry–Perot laser diode (FPLD) modulated in below-threshold condition. By injecting two non-return-to-zero data streams into the FPLD-based OR gate, a peak-power-equalized RZ-formatted OR logic data stream extinction ratio of is obtained from the FPLD with optimized rf-modulating and optical injecting powers of 24.7 and , respectively. The highest data rate of up to with a bit error rate (BER) of at a received optical power of can be achieved by increasing the dc bias current of the FPLD-based RZ-formatted OR logic gate to . The OR-gated RZ data stream exhibits a duty cycle (pulse width) of and a power penalty at a BER of at a data rate of .
© 2005 Optical Society of America
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