In-band clock distribution concept for ultra-high bit rates OTDM system
Shangjian ZHANG , Lei XU , Yong LIU , Yongzhi LIU
Front. Optoelectron. ›› 2010, Vol. 3 ›› Issue (4) : 343 -346.
In-band clock distribution concept for ultra-high bit rates OTDM system
A novel clock distribution concept based on in-band phase-modulated pilot insertion is demonstrated. This method avoids the need for an ultrafast phase comparator and a phase-locked loop in the receiver. Experimental results show that the clock can be successfully extracted from 160 Gbit/s optical time-division multiplexing (OTDM) data signal and employed for demultiplexing of 40 Gbit/s tributaries. The in-band clock distribution introduces 1.5 dB of power penalty with an error-free performance.
optical time-division multiplexing (OTDM) / clock recovery / in-band clock distribution / phase-modulated pilot insertion
Higher Education Press and Springer-Verlag Berlin Heidelberg
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