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All-optical clock recovery for both RZ and NRZ data

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4 Author(s)
Weiming Mao ; Sch. of Opt./CREOL, Univ. of Central Florida, Orlando, FL, USA ; Yuhua Li ; Mohammed Al-Mumin ; Guifang Li

An all-optical clock recovery scheme for both the nonreturn-to-zero and the return-to-zero formats has been proposed and successfully demonstrated. Clock extraction, enhancement, and clock-to-data suppression were realized by a semiconductor optical amplifier and a fiber Bragg grating. Clock recovery was achieved using a two-section gain-coupled distributed-feedback laser. The scheme has large dynamic range of input power for both formats.

Published in:

IEEE Photonics Technology Letters  (Volume:14 ,  Issue: 6 )