Abstract

We report the existence and stability of solitons in triangular optical lattices with a defect in saturable nonlinearity. With the changes of defect intensity, defect solitons may exist in different gaps. For a positive defect, solitons only exist in the semi-infinite gap and can be stable in the low power region. For a negative defect, solitons can exist in the semi-infinite gap and in the first gap. With the increasing of the negative defect depth, solitons will be stable only in the moderate power region in the first gap, and the stable region will become more and more narrow.

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Defect solitons in kagome optical lattices

Xing Zhu, Hong Wang, and Li-Xian Zheng
Opt. Express 18(20) 20786-20792 (2010)

Surface defect gap solitons in one-dimensional dual-frequency lattices and simple lattices

Li-Xian Zheng, Xing Zhu, Huagang Li, and Ying-Ji He
J. Opt. Soc. Am. B 28(9) 2070-2074 (2011)

Defect solitons in two-dimensional optical lattices

W. H. Chen, X. Zhu, T. W. Wu, and R. H. Li
Opt. Express 18(11) 10956-10962 (2010)

References

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
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by 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
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files 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
or
Login to access OSA Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations 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
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics 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
or
Login to access OSA Member Subscription