Title :
1.55 μm narrow-linewidth multielectrode DFB laser for coherent FSK transmission
Author :
Nakano, Yoshiaki ; Itaya, Y. ; Fukuda, Motohisa ; Noguchi, Y. ; Yasaka, Hiroshi ; Oe, Katsutoshi
Author_Institution :
NTT Electrical Communications Laboratories, Atsugi, Japan
Abstract :
A 1.55μm multielectrode DFB laser, with both flat FM response characteristic and spectral linewidth as narrow as 4.5 MHz, has been fabricated by an MOVPE/LPE hybrid growth method. Since this device is relatively easy to fabricate, the multielectrode DFB laser is most promising as a coherent FSK transmission light source.
Keywords :
distributed feedback lasers; frequency shift keying; liquid phase epitaxial growth; optical communication equipment; vapour phase epitaxial growth; 1.55 micron; FM response characteristic; coherent FSK transmission; multielectrode DFB laser; spectral linewidth;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870585
