Title :
Time-resolved spectrum characteristics of FSK-modulated dual-mode DFB/DBR lasers
Author :
Nakajima, Hisao ; Charil, Josette
Author_Institution :
Lab. de Bagneux, CNET, Bagneux, France
fDate :
6/1/1997 12:00:00 AM
Abstract :
A laser structure enabling simultaneous emission into distributed feedback (DFB) and distributed Bragg reflector (DBR) modes is characterized regarding frequency-shift keying (FSK)-modulated millimeter wave generation. Nonreturn-to-zero (NRZ)-modulation characteristics are measured by using time-resolved spectrum measurement techniques. A high FM efficiency of about 1.3 GHz/mA is reported at 622 Mb/s for 100-GHz-range millimeter waves.
Keywords :
III-V semiconductors; distributed Bragg reflector lasers; distributed feedback lasers; frequency shift keying; gallium arsenide; indium compounds; millimetre wave generation; optical modulation; semiconductor lasers; spectral analysis; time resolved spectra; 100 GHz; 622 Mbit/s; FM efficiency; FSK-modulated dual-mode DFB/DBR lasers; FSK-modulated millimeter wave generation; InGaAsP; InGaAsP bulk active layer; eye patterns; nonreturn-to-zero modulation characteristics; time-resolved spectrum characteristics; Distributed Bragg reflectors; Distributed feedback devices; Gratings; Laser feedback; Laser modes; Laser theory; Masers; Millimeter wave technology; Optical modulation; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
