Title :
Voltage Spectroscopy and the Operating State of an Optically Injected Long Wavelength VCSEL
Author :
Daly, Aidan ; Gründl, Tobias ; Huber, Sandra ; Müller, Michael ; Roycroft, Brendan ; Amann, Markus-Christian ; Corbett, Brian
Author_Institution :
Tyndall Nat. Inst., Univ. Coll. Cork, Cork, Ireland
fDate :
7/15/2012 12:00:00 AM
Abstract :
A study on the correspondence between the voltage and optical properties of long wavelength vertical cavity surface-emitting lasers (VCSELs) during tuned optical injection is presented. A direct link between the voltage response and the induced optical dynamics for parallel and orthogonal injection is highlighted. The induced dynamics include unlocked stable polarization switching at large frequency offsets from the free-running VCSEL lasing wavelength for both injection orientations. The carrier density change during stable locking is estimated using the cavity resonance shift and voltage change. This estimate is confirmed using a full numerical simulation of the injection locked rate equations.
Keywords :
carrier density; optical properties; optical switches; semiconductor lasers; surface emitting lasers; carrier density change; cavity resonance shift; correspondence; injection locked rate equations; injection orientations; large frequency offsets; operating state; optical properties; optically injected long wavelength VCSEL; stable locking; tuned optical injection; unlocked stable polarization switching; voltage response; voltage spectroscopy; Cavity resonators; Charge carrier density; Optical polarization; Optical pulse generation; Vertical cavity surface emitting lasers; Injection locking; optical injection; vertical cavity surface-emitting laser (VCSEL);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2199297
