CUED Publications database

Application of the fractional Fourier transform to the design of LCOS based optical interconnects and fiber switches

Robertson, B and Zhang, Z and Yang, H and Redmond, MM and Collings, N and Liu, J and Lin, R and Jeziorska-Chapman, AM and Moore, JR and Crossland, WA and Chu, DP (2012) Application of the fractional Fourier transform to the design of LCOS based optical interconnects and fiber switches. Applied Optics, 51. pp. 2212-2222. ISSN 1559-128X

Full text not available from this repository.

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 -40 dB 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.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:21
Last Modified: 22 Dec 2014 01:17
DOI: 10.1364/AO.51.002212