Title :
Low drive voltage and extremely low chirp integrated electroabsorption modulator/DFB laser for 2.5 Gbit/s 200 km normal fibre transmission
Author :
Aoki, M. ; Kikuchi, N. ; Sekine, K. ; Sasaki, S. ; Suzuki, M. ; Taniwatari, T. ; Okuno, Y. ; Takai, A. ; Kawano, T.
Author_Institution :
Central Res. Labs., Hitachi Ltd., Tokyo, Japan
Abstract :
A highly efficient (2 V peak to peak for 22 dB extinction ratio) and extremely low-chirp (<64 pm) integrated electroabsorption modulator/DFB laser is demonstrated by reducing both electrical and optical crosstalk between the modulator and the laser. The device allowed 2.5 Gbit/s penalty-free transmission over repeaterless 200 km-long 1.3 mu m-optimised singlemode fibre.
Keywords :
crosstalk; distributed feedback lasers; electro-optical devices; electroabsorption; feedback; integrated optoelectronics; optical communication equipment; optical modulation; reflectivity; semiconductor lasers; 1.3 mum; 2.5 Gbit/s; 200 km; DFB laser; electrical crosstalk; extinction ratio; extremely low chirp; integrated electroabsorption modulator; low drive voltage; normal fibre transmission; optical crosstalk; penalty-free transmission; repeaterless optimised singlemode fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931320
