Title :
40 GHz clock recovery from 640 Gbit/s OTDM signal using SOA-based phase comparator
Author :
Mulvad, H. C Hansen ; Tangdiongga, E. ; de Waardt, H. ; Dorren, H.J.S.
Author_Institution :
Eindhoven Univ. of Technol., Eindhoven
Abstract :
A 40 GHz clock with low jitter is recovered from a 640 Gbit/s optical time-division multiplexed (OTDM), single-polarised, return-to-zero PRBS data signal. The clock recovery circuit is an injection-locked loop which contains a 40 GHz Gunn oscillator, a 40 GHz pulse source, and a semiconductor optical amplifier (SOA) assisted by a filtered chirp as optical phase comparator.
Keywords :
Gunn oscillators; injection locked oscillators; jitter; millimetre wave oscillators; phase comparators; semiconductor optical amplifiers; synchronisation; time division multiplexing; Gunn oscillator; OTDM signal; SOA-based phase comparator; bit rate 640 Gbit/s; clock recovery; filtered chirp; frequency 40 GHz; injection-locked loop; optical phase comparator; optical time-division multiplexed; return-to-zero data signal; semiconductor optical amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20083045
