Title :
Influence of Low-Frequency Modulation on Polarization Switching of VCSELs Subject to Optical Feedback
Author :
Hong, Yanhua ; Paul, Jon ; Spencer, Paul S. ; Shore, K. Alan
Author_Institution :
Bangor Univ., Gwynedd
Abstract :
The influence of low-frequency modulation on the polarization switching (PS) properties of vertical-cavity surface-emitting lasers (VCSELs) under optical feedback has been investigated experimentally. The current modulation frequency has a large impact on the PS of VCSELs even in the low-frequency range between 1 and 100 kHz. Thermal effects play an important role in this phenomenon.
Keywords :
laser cavity resonators; laser feedback; light polarisation; optical modulation; optical switches; semiconductor lasers; surface emitting lasers; VCSEL; current modulation frequency; frequency 1 kHz to 100 kHz; low-frequency modulation; optical feedback; polarization switching; thermal effects; vertical-cavity surface-emitting lasers; Frequency modulation; Laser feedback; Laser modes; Optical feedback; Optical fiber polarization; Optical polarization; Semiconductor lasers; Surface emitting lasers; Threshold current; Vertical cavity surface emitting lasers; Modulation; optical feedback; polarization; semiconductor lasers; vertical-cavity surface-emitting laser (VCSEL);
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2007.909517
