Title :
Influence of optical feedback time-delay on power-drops in vertical-cavity surface-emitting lasers
Author :
Hong, Yanhua ; Shore, K. Alan
Author_Institution :
Sch. of Informatics, Univ. of Wales, Bangor, UK
Abstract :
The influence of optical feedback time delay on the average period of low-frequency fluctuations (LFF) in external cavity vertical-cavity surface-emitting lasers (VCSELs) is studied experimentally. The regularity of power dropouts is shown to increase with increased external cavity length. Coexistence of LFF and stable operation is observed when the external cavity length is close to the VCSEL coherence length.
Keywords :
delays; fluctuations; laser cavity resonators; laser feedback; laser stability; light coherence; surface emitting lasers; VCSEL coherence length; low-frequency fluctuations; optical feedback time-delay; power dropouts; stable laser operation; vertical-cavity surface-emitting lasers; Delay effects; Fiber lasers; Laser feedback; Laser modes; Optical feedback; Optical polarization; Power lasers; Semiconductor lasers; Surface emitting lasers; Vertical cavity surface emitting lasers; Optical feedback; surface-emitting lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2005.850698
