Title :
Sequential TE/TM polarization emission from a tunable external cavity diode laser
Author :
Syvridis, Dimitris ; Guekos, George ; Dall´Ara, Roberto ; Melchior, Hans
Author_Institution :
Inst. of Quantum Electron., Swiss Federal Inst. of Technol., Zurich, Switzerland
fDate :
2/1/1993 12:00:00 AM
Abstract :
A tunable external cavity diode laser that emits in a closely spaced sequence of alternating TE and TM wavelength intervals in the range between 1256 and 1282 nm is reported. In each interval, stable single longitudinal mode TE and then TM emission occurs that can be tuned in wavelength. Two consecutive intervals are separated by a wavelength region where emission instabilities are observed. The wavelength spacing between two successive intervals belonging to the same polarization state corresponds to the mode spacing of the solitary diode laser. As the laser is tuned beyond 1282 nm and up to 1316 nm, the emitted radiation is only TM polarized. The above-mentioned phenomena are based on the composite cavity gain modulation with the wavelength, and on the comparable losses of the system for the TE and TM polarization
Keywords :
laser cavity resonators; laser modes; laser tuning; light polarisation; semiconductor lasers; 1256 to 1282 nm; 1316 nm; IR; TE polarisation; TM polarization emission; composite cavity gain modulation; emission instabilities; laser tuning; mode spacing; optical losses; polarization state; solitary diode laser; stable single longitudinal mode; tunable external cavity diode laser; wavelength intervals; wavelength spacing; wavelength tuned; Diode lasers; Laser modes; Laser tuning; Optical bistability; Optical filters; Optical modulation; Optical polarization; Semiconductor lasers; Tellurium; Tunable circuits and devices;
Journal_Title :
Lightwave Technology, Journal of
