The transverse mode properties of a diode laser array12׳ are commonly explained in terms of supermode theory.34׳ However, this theory seems to fail to describe correctly the experimental results for high power gain-guided arrays. One objective of this paper is to present experimental data that are inconsistent with the supermode theory. Furthermore, we also propose a new perturbation model which predicts the correct mode structures and gives insight into the mechanism responsible for this modal behavior, enlightening the important role of the thermal effects.

© 1989 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription