TY - JOUR
T1 - Analysis and optimization of coupling to external cavities in feedback experiments with vertical-cavity surface-emitting lasers
AU - Jentsch, K.F.
AU - Sondermann, M.
AU - Ackemann, T.
PY - 2008/3/15
Y1 - 2008/3/15
N2 - The feedback strength is a crucial parameter for feedback experiments using semiconductor lasers. In this article, the coupling efficiency
of the field of vertical-cavity surface-emitting lasers (VCSELs) to external cavities containing one collimating lens has been analyzed
in detail using ABCD-matrix methods. It is found that for a given set of parameters there are two distinct, experimentally realizable
positions of the collimating lens which allow for optimal coupling, if the cavity length is sufficiently small. The predictions are verified in
experiments using single-transverse-mode VCSELs. The obtained coupling efficiencies exceed 70%.
AB - The feedback strength is a crucial parameter for feedback experiments using semiconductor lasers. In this article, the coupling efficiency
of the field of vertical-cavity surface-emitting lasers (VCSELs) to external cavities containing one collimating lens has been analyzed
in detail using ABCD-matrix methods. It is found that for a given set of parameters there are two distinct, experimentally realizable
positions of the collimating lens which allow for optimal coupling, if the cavity length is sufficiently small. The predictions are verified in
experiments using single-transverse-mode VCSELs. The obtained coupling efficiencies exceed 70%.
KW - vertical-cavity surface-emitting lasers
KW - feedback
KW - coupling efficiency
UR - http://dx.doi.org/10.1016/j.optcom.2007.11.066
U2 - 10.1016/j.optcom.2007.11.066
DO - 10.1016/j.optcom.2007.11.066
M3 - Article
SN - 0030-4018
VL - 281
SP - 1396
EP - 1400
JO - Optics Communications
JF - Optics Communications
IS - 6
ER -