Open AccessExperimental and theoretical investigation on novel all-optical format conversion based on a folded ultrafast nonlinear interferometer
Author(s) -
Da Li,
Chi Zhang,
Dexiu Huang
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.2223
Subject(s) - ultrashort pulse , interferometry , data conversion , optics , signal (programming language) , transmittance , gigabit , optical amplifier , nonlinear system , amplifier , physics , optoelectronics , computer science , laser , cmos , quantum mechanics , programming language , operating system
Pattern conversion is the key technology for all-optical clock recovery from non-return-to-zero (NRZ)signal. A novel scheme for all-optical NRZ to pseudo-return-to-zero (PRZ)conversion using a folded ultrafast nonlinear interferometer (UNI) has been put forward and demonstrated for the first time. Based on the segmented semiconductor optical amplifier model and the transmittance of the UNI, theoretical model for this scheme is established and the output characteristics are calculated theoretically. Stable format conversion from NRZ data to PRZ data has been achieved at 10, 20 and 40 Gbit/s. The influences of the input signal characteristics on the performance of the format conversion are investigated. Experimental results are in agreement with the numerical simulation results.