Abstract

A modified gamma network that is based on the bar-plus-2i and modulo-N connection patterns is proposed. The gamma network, one class of important O(N log2 N) interconnection networks, needs arrays of 1 × 3 or 3 × 3 switches, which makes it difficult to realize in optics. We modify the gamma network to meet the characteristics of optics by employing a bar-plus-2i connection pattern and a modulo N output stage. Two-by-two switches and regular interconnections are used in the network, so the network is suitable for optics. The optical implementation of the network with a birefringent crystal and an array of programmable half-wave plates is suggested, and a proof-of-principle experiment is presented. The network is a rearrangeable nonblocking network, and the nonblocking routing algorithm for an N × N network is given; (2 log2 N − 2) switching stages [with a total of (2 log2 N + 1/2)N − 4 log2 N − 1 switches] can permute N input nodes to N output nodes in any order in a one-to-one manner. The network is applicable to packet synchronous optical traffic.

© 1993 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
N-stage planar optical permutation network

R. A. Spanke and V. E. Benes
Appl. Opt. 26(7) 1226-1229 (1987)

Sliding-banyan network performance analysis

Michael W. Haney and Marc P. Christensen
Appl. Opt. 36(11) 2334-2342 (1997)

Two-dimensional optical Clos interconnection network and its uses

Shing-Hong Lin, Thomas F. Krile, and John F. Walkup
Appl. Opt. 27(9) 1734-1741 (1988)

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 (7)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (2)

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