Abstract

It is shown that reflective liquid crystal on silicon (LCOS) spatial light modulator (SLM) based interconnects or fiber switches that use defocus to reduce crosstalk can be evaluated and optimized using a fractional Fourier transform if certain optical symmetry conditions are met. Theoretically the maximum allowable linear hologram phase error compared to a Fourier switch is increased by a factor of six before the target crosstalk for telecom applications of 40dB is exceeded. A Gerchberg–Saxton algorithm incorporating a fractional Fourier transform modified for use with a reflective LCOS SLM is used to optimize multi-casting holograms in a prototype telecom switch. Experiments are in close agreement to predicted performance.

©2012 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Use of wavefront encoding in optical interconnects and fiber switches for cross talk mitigation

Brian Robertson, Zichen Zhang, Maura M. Redmond, Neil Collings, Jinsong Liu, R. S. Lin, Anna M. Jeziorska-Chapman, John R. Moore, William A. Crossland, and D. P. Chu
Appl. Opt. 51(5) 659-668 (2012)

Small phase pattern 2D beam steering and a single LCOS design of 40 1 × 12 stacked wavelength selective switches

Haining Yang, Brian Robertson, Peter Wilkinson, and Daping Chu
Opt. Express 24(11) 12240-12253 (2016)

Diffraction based phase compensation method for phase-only liquid crystal on silicon devices in operation

Zichen Zhang, Haining Yang, Brian Robertson, Maura Redmond, Mike Pivnenko, Neil Collings, William A. Crossland, and Daping Chu
Appl. Opt. 51(17) 3837-3846 (2012)

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 (13)

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 (18)

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