Title :
Effective generation of tunable single- and multiwavelength optical pulses from a Fabry-Perot laser diode
Author :
Shu, C. ; Yam, S.P.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
A tunable pulse source capable of both single- and multiwavelength oscillations has been developed by self-injection seeding of a laser diode. A side-mode-suppression ratio (SMSR) of about 20 dB has been obtained in the outputs. The key element in our setup is a wavelength multiplying stage consisting simply of 50/50 beam splitters, a diffraction grating, and a mirror. The maximum number of available wavelengths increases rapidly with the beam splitters. Our scheme can be adopted for use in high-speed wavelength switching.
Keywords :
Fabry-Perot resonators; Q-switching; diffraction gratings; high-speed optical techniques; laser cavity resonators; laser feedback; laser mirrors; laser modes; laser transitions; laser tuning; quantum well lasers; 50/50 beam splitters; Fabry-Perot laser diode; diffraction grating; effective pulse generation; gain switched LD; high-speed wavelength switching; mirror; multiple beam external cavity; quantum well LD; self-injection seeding; side-mode-suppression ratio; tunable multiwavelength optical pulses; tunable single wavelength optical pulses; wavelength multiplying stage; Diffraction gratings; Diode lasers; Fabry-Perot; Laser beams; Mirrors; Optical beams; Optical diffraction; Optical pulse generation; Optical pulses; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
