Title :
Large area multitransverse-mode VCSELs for modal noise reduction in multimode fibre systems
Author :
Hahn, K.H. ; Tan, M.R. ; Houng, Y.M. ; Wang, S.Y.
Author_Institution :
Hewlett Packard Labs., Palo Alto, CA, USA
Abstract :
The first peration is reported of large area multitransverse-mode vertical cavity surface emitting lasers (VCSELs) to reduce the effect of modal noise in multimode fibre systems. A BER<10-13 is measured with a 25 mu m VCSEL operated at 1 Gbit/s in a multimode optical link with 10 dB of mode selective loss at 16 m. The reduction in modal noise is from a decrease in the coherence of the large VCSELs with multitransverse-mode operation.
Keywords :
light coherence; optical communication equipment; optical fibres; optical links; semiconductor lasers; 1 Gbit/s; BER; coherence; large area multitransverse-mode vertical cavity surface emitting lasers; modal noise reduction; mode selective loss; multimode fibre systems; multimode optical link;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930990
