Title :
Current tailoring for lowering linewidth floor [semiconductor lasers]
Author :
Yasaka, Hiroshi ; Fukuda, Motohisa ; Ikegami, Tomoaki
Author_Institution :
NTT Optoelectron. Labs., Kanagawa
fDate :
6/9/1988 12:00:00 AM
Abstract :
The linewidth floor of a DFB laser observed in the linewidth/optical output power relation is an unresolved issue. It is found experimentally that the linewidth floor and linewidth rebroadening occurs in conjunction with spatial hole-burning along the lasing axis. Tailoring the current distribution along the lasing axis by using a three-terminal DFB laser can reduce the linewidth floor
Keywords :
distributed feedback lasers; semiconductor junction lasers; current distribution; lasing axis; linewidth floor; linewidth rebroadening; linewidth/optical output power relation; lowering linewidth floor; semiconductor lasers; spatial hole-burning; three-terminal DFB laser;
Journal_Title :
Electronics Letters
