Title :
Bandwidth-limited, single-longitudinal-mode. ultrashort optical pulse generation by a strongly RF-modulated, distributed Bragg reflector InGaAsp diode laser at 1.3 μm
Author :
Zhang, Ni ; Onodera, Naoyuki ; Ito, H. ; Inaba, Hiromi
Author_Institution :
Tohoku University, Research Institute of Electrical Communication, Sendai, Japan
Abstract :
The feasibility for generating bandwidth-limited, single-longitudinal-mode, ultrashort optical pulses has been demonstrated for the first time using a DBR diode laser at 1.3 μm by the method of strong RF modulation superimposed on the DC bias current. The time-bandwidth product of generated picosecond pulses at 400 MHz modulation frequency was measured to be 0.45 for the Lorentzian pulse shape with FWHM of approximately 31.5 ps.
Keywords :
III-V semiconductors; distributed Bragg reflector lasers; gallium arsenide; gallium compounds; indium compounds; laser modes; laser transitions; optical communication equipment; optical modulation; semiconductor junction lasers; 1.3 micron; 31.5 ps; 400 MHz; DC bias current; DRR laser; III-V semiconductors; InGaAsP diode laser; Lorentzian pulse shape; RF modulation; bandwidth limited pulses; distributed Bragg reflector; optical communication equipment; optical fibre links; semiconductor lasers; single-longitudinal-mode; ultrashort optical pulse generation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860818
