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Dual-wavelength chaos generation and synchronization in erbium-doped fiber lasers

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4 Author(s)
Fan Zhang ; Dept. of Electron. Eng., City Univ. of Hong Kong, China ; Chu, P.L. ; Lai, R. ; Chen, G.R.

Dual-wavelength chaos is generated in one erbium-doped fiber laser. Tunable optical filters (TOF) are used to select the wavelengths. The generation of chaos is achieved by either modulating the pump laser diode near the relaxation oscillation frequency of the fiber laser or by introducing the modulation through an electrooptic modulator built into each wavelength branch. The receiver is fabricated with identical parameters as the transmitter except for an open loop structure. By tuning the TOF in the receiver, synchronization of chaos is observed in either of the two wavelengths. Thus, it can pave the way for wavelength-division-multiplexing chaos communications.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 3 )