Title :
All-optical inverter with one picojoule switching energy
Author :
Islam, Md Nurul ; Soccolich, C.E. ; Chen, Chuan-Jie ; Kim, Kwang Soon ; Simpson, J.R. ; Paek, U.C.
Author_Institution :
AT&T Bell Labs., Holmdel, NJ, USA
Abstract :
An ultrafast inverter based on soliton dragging in optical fibres with a switching energy of only 1 pJ, which is the lowest switching energy of any all-optical device, is demonstrated. The inverter consists of a 30 m length of moderately birefringent fibre followed by a 2 km length of a polarisation-maintaining fibre. The switching energy is lowered by separating the soliton dragging mechanisms in two different fibres and optimising the parameters in a time domain chirp switch that is based on time shift keying logic.
Keywords :
birefringence; fibre optics; light polarisation; optical bistability; optical fibres; optical logic; solitons; 1 pJ; all-optical device; birefringent fibre; nonlinear optics; optical fibres; picojoule switching energy; polarisation-maintaining fibre; soliton dragging; time domain chirp switch; time shift keying logic; ultrafast inverter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910086
