Title :
High modulation frequency low distortion 1.3 mu m MQW-DFB-LDs for subcarrier multiplexed fibre-optic feeder systems
Author :
Yamada, Hiroyoshi ; Okuda, Takafumi ; Shibutani, M. ; Tomida, S. ; Torikai, T. ; Uji, T.
Author_Institution :
Kansai Electron. Res. Lab., NEC Corp., Otsu, Japan
Abstract :
A remarkable improvement has been attained for intermodulation distortion and spectrum linewidth performance for 1.3 mu m DFB LDs by introducing thin barrier MQWs and short cavity configurations. Less than -85 dBc in 3rd order intermodulation distortion and more than 50 MHz in spectral linewidth have been simultaneously obtained from devices modulated by two 1.5 GHz signals.
Keywords :
distributed feedback lasers; intermodulation; laser cavity resonators; laser transitions; optical communication equipment; optical modulation; semiconductor lasers; spectral line breadth; subcarrier multiplexing; 1.3 micron; high modulation frequency low distortion 1.3 mu m MQW-DFB-LD; intermodulation distortion; short cavity configurations; spectral linewidth; spectrum linewidth performance; subcarrier multiplexed fibre-optic feeder systems; thin barrier MQWs;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931294
