Title :
Frequency modulation and spectral characteristics for a 1.5μm phase-tunable DFB laser
Author :
Murata, Shotaro ; Mito, I. ; Kobayashi, Kaoru
Author_Institution :
NEC Corporation, Opto-Electronics Research Laboratories, Kawasaki, Japan
Abstract :
Frequency modulation (FM) and spectral characteristics for a 1.5μm phase-tunable DFB (PT DFB) laser have been studied experimentally. As tuning current was increased, light output, lasting wavelength, FM efficiency and spectral linewidth changed periodically. The continuous-wavelength tuning range was over l.2nm (150 GHz). A high FM efficiency, more than 16GHz/mA, and a flat FM response, up to 100MHz, were obtained.
Keywords :
distributed feedback lasers; frequency modulation; laser transitions; laser tuning; optical modulation; semiconductor junction lasers; spectral line breadth; 1.5 micron; 100 MHz; 150 GHz; FM; FM efficiency; continuous-wavelength tuning range; distributed feedback lasers; frequency modulation; lasing wavelength; light output; phase-tunable DFB laser; semiconductor lasers; spectral characteristics; spectral linewidth; tuning current;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870009
