Title :
Optical high-frequency pulse generation with wavelength tunability by using a DBR laser with vernier-type gratings
Author :
Nishikawa, Satoshi ; Gotoda, Mitsunobu ; Nishimura, Tetsuya ; Tokuda, Yasunori
Author_Institution :
Adv. Technol. R&D Center, Mitsubishi Electr. Corp., Hyogo, Japan
Abstract :
An optical high-frequency pulse generation method with wavelength tunability is presented by taking advantage of vernier-type gratings in a distributed Bragg reflector laser diode. Experimental results showed that sinusoidal optical pulses, whose lasing wavelengths were tunable, were created with repetition frequencies around 30 GHz. The widths of the radio frequency spectra, furthermore, were drastically reduced by means of mode locking with externally injected optical pulses.
Keywords :
diffraction gratings; distributed Bragg reflector lasers; laser mode locking; laser tuning; optical pulse generation; radiofrequency spectra; semiconductor lasers; time division multiplexing; wavelength division multiplexing; 30 GHz; DBR laser; dense wavelength-division multiplexing; distributed Bragg reflector laser; externally injected optical pulses; high-frequency pulse generation; laser diode; mode locking; optical pulse generation; optical time-division multiplexing; radiofrequency spectra; sinusoidal optical pulses; vernier-type gratings; wavelength tunability; Distributed Bragg reflectors; Distributed feedback devices; Gratings; Laser mode locking; Optical feedback; Optical pulse generation; Optical variables control; Pulse generation; Tunable circuits and devices; Wavelength division multiplexing; Dense wavelength-division multiplexing (DWDM); distributed Bragg reflector (DBR) laser; mode-lock; optical pulse generation; optical time-division multiplexing (OTDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.850889
