PROJECT TITLE :

A Novel Optical Frequency-Hopping Scheme for Secure WDM Optical Communications

ABSTRACT:

A completely unique optical frequency-hopping scheme in wavelength-division multiplexing (WDM) systems is proposed to attain secure communications with high capacity. Frequency hopping is realized by the hopping of digital signals among different channels. Within the proposed system, the signal from any supply is separated into small segments within the time domain, and therefore the segments are carried by a lot of than one totally different-wavelength optical carrier. All the optical waves within the proposed WDM system are modulated by signals from two or a lot of sources at completely different times. The signal from a bound source is additionally interference to signals from other sources. Hopping, synchronization, de-hopping, and routing are all digitally implemented in field-programmable gate array chips. The system is reconfigurable by software to adapt to totally different rates. Slow frequency hopping, fast frequency hopping, and intermediate frequency hopping are all available. A demonstration system is designed to support transmission speed from zero to ten Gb/s, and a video communication primarily based on it is designed to demonstrate the 1-Gb/s optical frequency-hopping system.


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